Cities and villages are components of a specific organism. Only the sustainable development of two parts can support the prosperous development as a whole. According to the theory of man-earth areal system, urban-rural integrated system and rural regional system are the theoretical bases for entirely recognizing and understanding urban-rural relationship. To handle the increasingly severe problems of "rural disease" in rapid urbanization, accelerating rural revitalization in an all-round way is not only a major strategic plan for promoting the urban-rural integration and rural sustainable development, but also a necessary requirement for solving the issues related to agriculture, rural areas, and rural people in the new era and securing a decisive victory in building a moderately prosperous society in all respects. This study explores the basic theories of urban-rural integration and rural revitalization and analyzes the main problems and causes of rural development in the new era, proposing problem-oriented scientific approaches and frontier research fields of urban-rural integration and rural revitalization in China. Results show that the objects of urban-rural integration and rural revitalization is a regional multi-body system, which mainly includes urban-rural integration, rural complex, village-town organism, and housing-industry symbiosis. Rural revitalization focuses on promoting the reconstruction of urban-rural integration system and constructs a multi-level goal system including urban-rural infrastructure networks, zones of rural development, fields of village-town space and poles of rural revitalization. Currently, the rural development is facing the five problems: high-speed non-agricultural transformation of agriculture production factors, over-fast aging and weakening of rural subjects, increasingly hollowing and abandoning of rural construction land, severe fouling of rural soil and water environment and deep pauperization of rural poverty-stricken areas. The countryside is an important basis for the socioeconomic development in China, and the strategies of urban-rural integration and rural revitalization are complementary. The rural revitalization focuses on establishing the institutional mechanism for integrated urban-rural development and constructs the comprehensive development system of rural regional system, which includes transformation, reconstruction and innovation in accordance with the requirements of thriving businesses, pleasant living environments, social etiquette and civility, effective governance, and prosperity. Geographical research on rural revitalization should focus on the complexity and dynamics of rural regional system and explore new schemes, models and scientific approaches for the construction of villages and towns, which are guided by radical cure of "rural disease", implement the strategy of rural revitalization polarization, construct the evaluation index system and planning system of rural revitalization, thus providing advanced theoretical references for realizing the revitalization of China's rural areas in the new era.

城市与乡村是一个有机体,只有二者可持续发展,才能相互支撑。依据人地关系地域系统学说,城乡融合系统、乡村地域系统是全新认知和理解城乡关系的理论依据。针对日益严峻的“乡村病”问题,全面实施乡村振兴,既是推进城乡融合与乡村持续发展的重大战略,也是破解“三农”问题,决胜全面建成小康社会的必然要求。本文探讨了新时代城乡融合与乡村振兴的基础理论,剖析了乡村发展面临的主要问题,提出了问题导向的中国城乡融合与乡村振兴科学途径及研究前沿领域。结果表明：① 城乡融合与乡村振兴的对象是一个乡村地域多体系统,包括城乡融合体、乡村综合体、村镇有机体、居业协同体,乡村振兴重在推进城乡融合系统优化重构,加快建设城乡基础网、乡村发展区、村镇空间场、乡村振兴极等所构成的多级目标体系。② 中国“三农”问题本质上是一个乡村地域系统可持续发展问题,当前乡村发展正面临主要农业生产要素高速非农化、农村社会主体过快老弱化、村庄建设用地日益空废化、农村水土环境严重污损化和乡村贫困片区深度贫困化等“五化”难题。③ 乡村是经济社会发展的重要基础,城乡融合与乡村振兴战略相辅相成,乡村振兴应致力于创建城乡融合体制机制,推进乡村极化发展,按照产业兴旺、生态宜居、乡风文明、治理有效、生活富裕的要求,构建乡村地域系统转型—重构—创新发展综合体系。④ 乡村振兴地理学研究应着眼于乡村地域系统的复杂性、综合性、动态性,探究以根治“乡村病”为导向的新型村镇建设方案、模式和科学途径,为实现新时代中国乡村振兴战略提供理论参考。

The construction of the modern rural governance system becomes an important part in promoting the urban-rural integration development and rural vitalization. Solving systemic problems such as limited development space, unclear ownership relationship and inefficient organization in the process of using rural space has become the primary task of rural spatial governance. Based on the breakthrough of the comprehensive governance of "matter-ownership-organization" in rural space, this paper attempts to analyze the mechanism of rural space governance in promoting rural space restructuring, ownership reshaping and organizational system reconstruction, and further explores the feasible path of rural space governance to optimize the urban-rural pattern, improve the urban-rural interaction, and promote the urban-rural integration development. The conclusions are as follows: (1) Physical space governance facilitates the optimization of rural spatial structure, the space ownership governance safeguards the development rights of different stakeholders, and the space organization governance enhances rural organizational capabilities. The comprehensive governance of "matter-ownership-organization" in rural space helps to impel the restructuring of rural space, the reshaping of ownership relations and the reconstructing of organizational system, to achieve the goals of the modern rural space governance system with clear rural space ownership. (2) The "population-land-industry" transformation path guided by rural space governance creates conditions for the analysis of "deepening space governance-activating rural space-optimizing human-land relationship-improving the urban-rural pattern". (3) Rural space governance promotes the continuous evolution of urban-rural development, and the improvement of urban-rural interaction becomes an important basis for upgrading urban-rural integration development and solving the dilemma of rural development. Finally, this paper constructs an analytical framework and feasible path for the interaction between rural space governance and the urban-rural integration development, and explores the internal relationship and research trends of rural space governance and territory spatial planning.

构建现代乡村治理体系成为推动城乡融合发展和乡村振兴的重要内容。破解乡村空间利用过程中出现的发展空间受限、权属关系不明和组织体系不畅等系统性问题,成为乡村空间治理的首要任务。本文从乡村空间“物质—权属—组织”综合治理的视角出发,尝试解析乡村空间治理在推动乡村空间重构、权属关系重塑和组织体系重建中的作用机制,并进一步探讨乡村空间治理优化城乡格局、改善城乡互动关系、推动城乡融合发展的可行路径。结论如下:物质空间治理可作为乡村空间结构和功能优化的重要手段,空间权属治理有助于保障乡村空间不同参与主体的发展权利,空间组织治理可提升乡村空间的组织效率;乡村空间治理导向的“人口—土地—产业”转型过程为“深化空间治理—活化乡村空间—优化人地关系—改善城乡格局”的分析思路创造条件;乡村空间治理推动城乡发展格局不断演化,城乡互动关系改善成为推动城乡融合发展和破解乡村发展困境的重要依据。最后,本文构建了乡村空间治理与城乡融合发展互动分析框架,并探讨了乡村空间治理与国土空间规划的内在关系及研究趋势。

The research perspective of land system science can provide a reference for the study of urban-rural integrated development promoted by land use transitions. Based on the review of the development of land system science, this paper discusses the theoretical framework concerning land use transitions affecting urban-rural integrated development guided by land system science, the influential ways and paths of land use transitions on urban-rural integrated development, and the measures of promoting urban-rural integrated development via adjusting and controlling land use transitions. Land system science is committed to monitoring land use change, explaining the driving forces and feedback mechanism, understanding the human-environment interactions occurring on land, and translating scientific findings on land system into solutions for sustainable land use. The operating of land system takes sustainable land use and human well-being as the criterions, and manifests as multi-dimensional effects of land use. Operating well the land system via scientifically adjusting and controlling land use transitions can affect the process of urban-rural integrated development. Land use transitions promote the integrated development of urban and rural areas under the effects of strengthening the whole and reinforcing weak links through four channels, i.e., efficiency improvement, value embodiment, development elements circulation and structure optimization. In order to promote the integrated development of urban and rural areas from the perspective of land system science, the adjustment and control of land use transitions need to reshape the land use rights system, to promote the integrated consolidation of territorial space, and to improve the management and control system of land use transitions.

土地系统科学的研究视角可为促进城乡融合发展的土地利用转型研究提供参考借鉴。本文在梳理国际上土地系统科学发展历程基础上,基于土地系统科学研究视角探讨了土地利用转型影响城乡融合发展的理论框架、方式与路径以及促进城乡融合发展的土地利用转型调控途径与措施。土地系统科学致力于监测土地变化,解释驱动因素和反馈机制,理解发生于土地上的人类—环境相互作用,实现将对土地系统的科学发现转化为可持续土地利用解决方案。土地系统运行以土地可持续利用与人类福祉为准绳,显化为土地利用的多维效应。通过科学管控土地利用转型实现土地系统的良好运行能够影响城乡融合发展进程。土地利用转型通过效率提升、价值显化、要素流通与结构优化4大渠道,在“强整体”效应与“补短板”效应的作用下助推城乡融合发展。基于土地系统科学视域下促进城乡融合发展的土地利用转型调控需要重塑土地权能体系,推进国土空间综合整治,健全土地利用转型管控体系。

With the progress of holistic science and human society, development of geographical sciences has entered a new stage of interdisciplinary integration. Under this context, geographical sciences urgently needs to seek new paths through the deep integration of disciplines to better improve the knowledge system and contribute to the country and society development effectively. Based on the perspective of the National Natural Science Foundation of China (NSFC), this paper firstly deeply analyzes the current status and problems of the integration and development of geographical sciences in China, and points out that it is not fully integrated with the frontier of international geographical sciences, and the global political, economic and cultural influence of geographical research in China needs to be strengthened; considers that the ability of Geographic Sciences integrating national major practical needs for theoretical and technological innovation should be improved; suggests that the internal discipline system of geographical sciences in China should be further optimized according to the needs of knowledge integration. Then, this paper proposes three paths for the integrated development of geographical sciences under the guidance of funding policies, that is, the interdisciplinary integration facing the frontiers of science and technology in the world, the multiple fields integration facing the major national development strategies, and inner-discipline integration facing the optimized application codes of NSFC. In future, based on maintaining the continuity and stability of the development of disciplines, the NSFC will encourage the integration of geographical sciences with other disciplines and fields through the improvement and innovation, so as to promote and build a healthier and more innovative system.

随着整体科学的进步和国家社会的发展,地理科学已迈入跨学科交叉融合发展的新阶段。通过学科间和领域间的深度融合寻求新发展路径,完善知识体系,充分发挥服务国家社会之功能,是当前地理科学发展的当务之急。本文基于自然科学基金视角,分析了中国地理科学融合发展的现状与问题,认为其与国际前沿未充分接轨,研究的全球政治、经济、文化影响力有待加强,认为地理科学融合国家重大需求进行理论与技术创新的能力有待提升,认为学科内部体系要根据知识融合需求进一步优化。在此基础上,提出了资助政策引导下地理科学面向世界科技前沿的学科交叉融合、面向国家重大战略的多领域交叉融合和面向申请代码优化布局的分支学科交叉三大融合发展路径与相应政策工具。未来国家自然科学基金委员会将立足于保持学科发展的持续性和稳定性,通过政策创新来激励地理科学与其它学科、领域的交叉融合,以建设更具有活力与创新性的学术生态系统。

Geography is a subject to explore spatial distribution, time evolution and regional characteristics of geographical elements or geographical complexes. Geography is unique in bridging social sciences and natural sciences, and has characteristics of comprehensiveness, interdisciplinary research and regionalism. With the development of geographical science technology and research methods, geography is in the gorgeous historical process towards geographical science. Research themes of geography are focusing on the comprehensive research on the earth surface. The research paradigms of geography are shifting from geography knowledge description, coupling pattern and process, to the simulation and prediction of complex human and earth system. The development of Chinese geography needs to be rooted in the major needs of national strategy, and plays important roles in the studies of urbanization development, coupling ecological processes and services, water resources management and geopolitics. Under the country's major needs, China's geography tends to achieve the geography theory innovation, new method and technology application and developed disciplinary system with Chinese characteristics, and make more contribution to national and global sustainable development.

地理学是研究地理要素或者地理综合体空间分布规律、时间演变过程和区域特征的一门学科,是自然科学与人文科学的交叉,具有综合性、交叉性和区域性的特点。随着地理信息技术发展与研究方法变革,新时期的地理学正在向地理科学进行华丽转身,研究主题更加强调陆地表层系统的综合研究,研究范式经历着从地理学知识描述、格局与过程耦合,向复杂人地系统的模拟和预测转变。在服务国内重大需求和国际全球战略过程中,地理学正在扮演愈发重要的角色,在新型城镇化、生态环境保护、水土资源管理、地缘政治等领域拥有广阔发展前景。中国地理学正面临前所未有的机遇,需要紧紧围绕国家重大需求,创新发展综合性的理论、方法和技术,逐步形成具有鲜明中国特色、深远国际影响的地理科学体系,为中国和全球的可持续发展服务。

Rural regional system is a spatial system with certain structure, function and inter-regional relationship, which is composed of humanity, economy, resources and environment that are connected and interacted with each other. It is a regional multi-body system, including urban-rural integrity, rural synthesis, village-town organism, and housing-industry synergy. Targeting the rural regional system and supporting the rural revitalization strategy provides new opportunities and challenges for innovation of Chinese geography in the new era. Guided by the theory of regional system of human-land system and the science of human-land system, the research on rural revitalization geography should serve national strategy by finding solutions to problems hindering rural sustainable development, and make contribution to the comprehensive study of rural regional system structure, transformation process, evolution mechanism, differentiation pattern, regional function, and rural revitalization path and model under the interaction of surface's human-land system. There is an urgent requirement to better understand and reveal differences in the types of rural regional system and their differentiation law. Taking 39164 townships in China as research object, this paper used quantitative and qualitative methods to detect and identify the dominant factors that restrict the sustainable development of rural regional systems in China. Then we divided the types of Chinese rural regional systems, revealed the pattern of rural regional differentiation and further proposed scientific approaches to rural revitalization in different areas. Results demonstrate that topographic conditions, climate conditions, ruralization level, land resources endowment, population mobility and aging level are the dominant factors restricting the sustainable development of rural regional system, of which reflects the level of resource endowment, endogenous power and external aid of rural development. Through cluster analysis and spatial overlay of dominant factors, China's rural regional system can be divided into 12 first-class zones and 43 second-class zones. The first-class zones are named by means of 'geographical location + driving force of dominant factors', and the second-class zones are named by means of 'regional scope + driving force of dominant factors + economic development level'. The driving force of rural sustainable development in different regional types are varied. The regional pattern and path of rural revitalization in different types of areas are varied, and promoting the rural revitalization strategy should be based on local conditions to realize the coordination and sustainable development of rural economy, society, culture and ecosystem.

乡村地域系统是由人文、经济、资源与环境相互联系、相互作用下构成的、具有一定结构、功能和区际联系的乡村空间体系,是一个由城乡融合体、乡村综合体、村镇有机体、居业协同体等组成的地域多体系统。以乡村地域系统为对象,服务支撑国家乡村振兴战略,为新时期地理学创新研究提供了新机遇和新挑战。乡村振兴地理学研究,亟需以问题为导向、战略为指向,以人地关系地域系统理论和人地系统科学为指导,致力于地表人地系统交互作用下乡村地域系统结构、转型过程、演变机理、分异格局、地域功能,以及乡村振兴途径与模式综合研究,科学把握乡村地域系统类型及其分异规律。本文以全国39164个乡镇为基本单元,采用定量和定性相结合的研究方法,诊断识别了制约中国乡村地域系统可持续发展的主导因子,划分了中国乡村地域系统类型,揭示了乡村地域系统分异格局,探明了不同类型区乡村振兴科学途径。结果表明：① 地理环境、村镇化水平、资源禀赋、人口流动程度和老龄化水平等是乡村地域系统分异的主导因子,反映了乡村发展自然本底特征以及外援动力、内生动力的大小。② 通过主导要素聚类和空间叠加分析,将中国乡村地域系统划分为12个一级区、43个二级区。一级区采用“地理区位+主导要素驱动力/约束力”的方法命名,二级区采用“地域范围+主导要素驱动力/约束力+乡村经济发展水平”命名。③ 不同类型区乡村振兴地域模式和路径不同,乡村振兴战略与规划的落地要因地制宜、分类施策。

Space is a product of society. Driven by industrialization, urbanization, informationization, and government policies, China's rural space is going through drastic reconstructions. As one of the core contents of international rural geography research, rural space studies are multi-disciplinary, multi-perspective, multi-dimensional, and multi-methods, forming a rich research field. In order to grasp the progress of rural space research more comprehensively, this study reviewed international rural space research literature in recent 40 years. The study found that international researchers described the connotation of rural space from the perspectives of material, imagination, and practice. The three-fold architecture was established to emphasize the practice of everyday life. It introduced living space to build the systematic research framework of rural space. With regard to the theoretical perspective, international research of rural space has gone through functionalism, political economy, and social constructivism; it transformed from productivism to post productivism; the research included settlement space, economic space, social space, and cultural space. As a whole, international research of rural space realized the change from material level to social representation, from object space to subject space, and from static one-dimensional space to dynamic multi-dimensional space, which revealed the importance of interdisciplinary and sociocultural approaches in rural space studies. The construction of rural space in China needs to pay attention to the subject status of farmers and multifunction of rural space, respect the role of locality and difference of various places, and recover the function of production of meaning of rural space.

任何空间都是社会的产物。在工业化、城镇化、信息化和政策的驱动下,中国乡村空间正在发生剧烈重构。乡村空间研究作为国外乡村地理学研究的核心内容之一,具有多学科、多视角、多维度、多方法的特点,形成了一个丰富的研究图景。为了更全面地把握国外乡村空间研究的进展,论文对国外近40 a的乡村空间研究文献进行了梳理。研究发现,国外学者从物质、想象和实践等层面诠释了乡村空间的内涵,并通过建立“乡村空间的三重模型”,强调了日常生活实践的重要性,引入了生活空间,构建了较为系统的乡村空间研究架构。在理论视角上,国外乡村空间研究经历了功能主义、政治经济学和社会建构主义3个阶段;在时间的演进上,实现了由生产主义空间研究到后生产主义空间研究的转换;在空间维度上,实现了聚落空间、经济空间、社会空间和文化空间的多重叠加。国外乡村空间研究实现了从物质层面到社会表征、从客体性空间到主体性空间、从静态单维空间到动态多维空间的转变,启示我们对乡村空间进行跨学科研究以及“社会-文化”研究的重要性。中国乡村空间建设要重视农民的主体性地位、强调乡村空间的多功能性、尊重乡村空间的“地域性”和“差异性”、恢复乡村空间的意义生产功能。

Rural Geography is a weak branch of Human Geography in China, especially with regard to its theoretical development and some basic concepts. First of all, this paper analyses rural definitions systematically from a multi dimention point of view (occupational、ecological、socio cultural). As an occupational definition, “rural” means an area where farming is the main mode of production. As far as ecological definitions are concerned, it means a settlement whose population scale is smaller, outside urban area, with rural landscapes showing unmistakable signs of being dominated by extensive use of land, and with discrete spatial units isolated from the outside world. Socio cultural definitions are in terms of clear differences in behavior and attitude between people in rural and urban area, such as ways of life, spatial behavior and aspirations. The author thinks that all the definitions are lack of delimitations of rural totally and essentially. Rural can not be summarized by a simple definition, because it is a complicated and indistinct conception. Difficulties of defining rural lie in dynamic evolution of the whole rural, unconformity among rural elements, relativity between rural and urban, and relevant rural urban continuum, which makes the boundary between rural and urban more indefinite. To a certain extent rural is regarded as areas differing from urban greatly and the difference can be compared in many aspects such as production activities, ways of life, etc. The close extent between urban and rural represents different stages of rural development. The author suggests rurality should take place of rural definitions under the background of urbanization in the world of today. Rurality refers to the manifestation of rural characters which take urban as criteria of reference within a specified area. The author draws his conclusions. First, every region can be looked on as a unity of urbanity and rurality. The more urbanity a region is, the less rurality it will have. Urban and rural are continuous and there is not any broken locality between them. Second, the size of rurality index takes urban as unit of reference. Using different urban criteria can reflect difference of rurality and stages of its development. Finally, rurality is concerned with scale, index and method which are used in our research. We can weaken some rural characteristics and improve regional urbanity in practice such as village town planning and regional planning by estimating rurality index of different areas. In order to be favourable to urban rural planning and management we also need to put forward rural countermeasures concerned correctly.

Currently, the implementation of new type industrialization, new type urbanization and agricultural modernization strategy lacks of a major hand grip and spatial sustain platform, due to long-term existed "dual-track" structure of rural-urban development in China as well as unstable rural development institution and mechanism and backward rural and agricultural infrastructures, which greatly affects the advancement of urban-rural integration development. It is necessary to restructure rural production, living and ecological space by carrying out land consolidation, so as to establish a new platform for building new countryside and realize urban-rural integration development in China. This paper develops the concept and connotation of rural spatial restructuring, i.e., an optimization and adjustment even utterly changing process of rural production, living and ecological space accompanied by rural socio-economic structure reshaping under the pressure of rapid industrialization and urbanization. The connotations of rural spatial restructuring involve three aspects of assembling industrial development, centralizing farmers' living and intensive resources utilization. Based on the effects analysis of industrialization and urbanization on rural production, living and ecological space, this paper also probes the mechanism which push forward rural spatial restructuring by carrying out land consolidation, an important approach to supplying cultivated land, revitalizing the stock land, optimizing rural-urban land, utilizing land intensively, and increasing land productivity. A conceptualization of the models of rural production, living and ecological environment spatial restructuring is analyzed in combination with agricultural land consolidation, hollowed villages consolidation and industrial and mining land consolidation. Finally, the author argues that a "bottom-up" restructuring strategy accompanied by a few "top-down" elements is helpful for smoothly pushing forward current rural spatial restructuring in China. The optimization and restructuring of rural intensive and high-efficient production space, suitable living space with amenity and ecological space with beautiful mountain and clean water will rely on the innovation of regional engineering technology, policy mechanism and mode of rural land consolidation, and more attentions should be paid to rural space, the foundation base and platform for realizing urban-rural integration development.

目前,中国新型工业化、城镇化和农业现代化的推进仍缺乏重要抓手和空间支撑平台,严重影响了城乡一体化发展进程。亟需通过开展农村土地综合整治,重构乡村生产、生活和生态空间,为推进新农村建设和城乡一体化发展搭建新平台。本文在界定了乡村空间重构,即在快速工业化和城镇化进程中,伴随乡村内生发展需求和外源驱动力综合作用下导致的农村地区社会经济结构重新塑造,乡村地域上生产空间、生活空间和生态空间的优化调整乃至根本性变革的过程,及其产业发展集聚、农民居住集中和资源利用集约3 个方面内涵的基础上,分析了工业化和城镇化进程对乡村生产、生活和生态空间的影响;探讨了乡村空间重构的土地整治类型及助推机制;结合农用地整治、"空心村"整治和工矿用地整治提出了乡村生产、生活和生态空间重构的模式与途径,以及依托土地整治的以"自下而上"为主、"自上而下"为辅的乡村空间重构战略。作为城乡一体化发展根基的乡村空间其重要性和基础平台作用应受到足够重视,乡村集约高效的生产空间、宜居适度的生活空间和山清水秀的生态空间的优化重构,有赖于区域农村土地整治工程技术、政策机制与模式的创新。

The rural vitalization in the new era and space development and utilization are closely related. It is meaningful to construct a theoretical system and practical path of rural vitalization based on rural spatial governance. Based on the deconstruction framework of "demand→effect→path→strategy", this paper discusses the internal logic relationship between rural vitalization and spatial governance. The results show the following: (1) The reconstruction of rural value is the key to ensure the realization of rural vitalization; rural spatial governance can be a good way to realize the rights allocation and effective control of rural space; rural spatial governance includes material spatial governance, organization spatial governance, and ownership spatial governance; through spatial governance, the structure and function of physical space can be reconstructed, the organization relationship can be reorganized, and the value distribution can be reshaped. (2) The effect of spatial governance on rural vitalization is presented from the optimization of the urban-rural interaction, as well as the stimulation and strengthening of rural endogenous power, and the capabilities of grassroots organizations. (3) Rural spatial governance is an effective path to implement rural vitalization by promoting the urban-rural integration development, activating rural endogenous development, and ensuring the organizations mechanism. (4) The rural spatial governance system combines "top-down" and "bottom-up" forms to implement rational allocation of spatial development power. The channels, capabilities, and effects of multiple subjects participating in spatial governance will promote the realization of space development and the establishment of a system with equitable rights and interests. The "right-sharing" spatial governance can implement the rural revitalization strategy in urban-rural sharing, subject and regional sharing. In summary, the research will provide references for improving the scientific system of rural spatial governance and implementing the rural revitalization strategy.

新时期乡村振兴挑战与空间利用问题密不可分,基于空间治理建构乡村振兴的理论体系和实践路径具有现实意义。本文基于“诉求→效应→路径→策略”解构方案,探讨了基于空间治理的乡村振兴可行性和内在逻辑体系。结果表明：① 乡村价值重构是确保乡村振兴目标实现的关键环节,乡村空间管控和发展权利配置可从乡村空间治理寻找突破口;乡村空间治理从物质空间治理、空间组织治理、空间权属治理入手,重构物质空间结构功能,重组空间组织关系,重塑空间价值分配体系;② 空间治理振兴乡村的效应从城乡互动关系优化、乡村内生动力激发、基层组织能力强化等层面加以呈现。③ 乡村空间治理推动城乡融合发展、激活乡村内生发展、保障组织机制,是落实乡村振兴的有效路径。④ “上下结合型”乡村空间治理有利于落实空间开发权利的合理配置;多元主体参与空间治理的渠道、能力与效应,推动空间发展目标落地和公平权益体系建设;“权利共享型”空间治理可在城乡共享、主体共享和区域共享中落实乡村振兴目标。研究结论可为完善乡村空间治理科学体系和落实乡村振兴战略提供参考。

Based on the analysis of the background of geographical development, this paper expounds the basic methodology of human-economic geography and the characteristics of man-land system, and proposes studies on "man-land system dynamics". The paper is an effort to develop a comprehensive theory system and to improve academic research of human-economic geography by expatiating its methodology and characteristics. It can also contribute to forging a consensus that human-economic geography and sustainable development research have had a significant position for academia, especially for physical science; meanwhile, to promoting formation of research framework on resource-environment (including ecological)-sustainable development study in earth surface system.Being dead against the prejudice of a few scholars, it emphasizes and analyzes the uncertainty and scientific characteristics of human-economic geography.

In the past 20 years, outstanding progress has been made in the development of China's geographical science which consists of both applied aspect and talents training. It also played an essential role in the nation's major research projects. There were more than 200,000 people engaging in geographical education and research in institutions, universities and colleges as well as middle schools in China in 2002. There were 565 professors and 1,001 associate professors working in the major 42 geographical institutions, of which 8 have the power to confer Ph.D degree of primary disciplines and 65 to confer Ph.D degree of secondary disciplines. In the 42 institutions, there are 340 doctoral tutors. Since the second half of 1999, 586 PhD students and 1,579 master students have graduated. Some 1,006 PhD students and 2,563 master students were enrolled in the academic year of 2001-2002. Since 1999, the following projects have been managed: one national major project, and 20 key projects under the National Natural Science Foundation of China; 8 for National 863 Program; 6 special topics and 13 projects for National Brainstorm Program; 4 projects and 8 subjects for National 973 Program; foundation items for outstanding youth and 16 excellent research groups supported by foundations; one major knowledge innovation project and 7 key projects of CAS. In spite of the achievements mentioned above, certain fields in geographical research also face challenges and opportunities. In light with the existing problems, this paper discusses the development direction of the geographical sciences in the 21st century and puts forward suggestions on strengthening theoretical research and integrated research of geography.

Influenced by the interaction of various internal and external factors including urbanization, informatization, and globalization, rural areas in China are experiencing socioeconomic restructuring, regional function upgrading, and a series of transformations and reconstructions. Rural areas face a range of unprecedented opportunities and challenges, and the proposal of "rural revitalization strategy" puts forward new requirements for rural development and rural geography. Therefore, a comprehensive and systematic understanding of rural space system and accurate depiction of rural space are necessary prerequisites for further studies. Existing Chinese research focused more on the material space and to some extent placed less focus on the study of social-cultural space. Using a single material space view is very difficult to understand and interpret a large number of increasingly complex rural geographical problems. Based on a systematic analysis of the thinking on rural space and development in China and abroad, this article points out the deficiency of Chinese rural geographical research about rural society and culture. This article preliminarily expounds the complexity of rural territorial system and argues that the rural space system that is derived from the rural territorial system should not be limited within the range of rural material space but be understood through the multi-dimensional perspective of space. According to the human-environment system theory, this study tried to construct a rural space system that consists of three progressive layers including material space-social space-cultural space and clarify the connotations of every layer and the logical relations between them to fully understand the increasingly complex rural area. This article also highlights the necessity that multi-dimensional rural spatial restructuring should be developed. Based on the construction of multi-dimensional rural space system, forming an overview of the historical process and realistic situation of rural spatial restructuring and predicting the future path of rural development are very important research tasks to carry out in the future. In the end, this article appeals that Chinese geographers should continue to discuss and analyze concepts of rural issues in order to constantly improve our understanding about the changing countryside, and deepen the studies of rural spatial restructuring by using the theories and methods of related subjects from the perspective of multi-dimensional space. Finally, for the comprehensive empirical research of rural geographical issues, Chinese rural geographers should strengthen micro scale studies, actively devote themselves to field study, be observant of rural daily life, and understand the rural society and culture to make up for the deficiency of Chinese rural geographical research about rural society and culture.

伴随着城镇化、信息化、全球化等多种内外因素的交互作用,中国的乡村正经历着社会经济形态重组、地域功能提升等一系列转型与重构的过程,乡村地域面临着前所未有的机遇与挑战,而“乡村振兴战略”的提出也给乡村发展及乡村地理学的研究提出了新要求,全面系统地认识乡村空间系统,准确把握乡村空间是开展进一步研究的必要前提。本文在系统梳理国内外对乡村空间的认知与发展基础上,指出国内乡村地理学在乡村社会—文化空间研究上的不足。本文以人地关系地域系统为理论基础,尝试建构了由“物质空间—社会空间—文化空间”组成的乡村空间系统,以期为全面认识日益复杂的乡村地域提供理论指导。

Understanding the regional differentiation regularities and causes of quality of life in rural areas is not only the new content of rural geography for a new era, but also the inherent requirement of the scientific implementation of the rural revitalization strategy. Taking 101 counties (cities, districts) of Hunan province as the research unit, this paper proposes a assessment indicator system of quality of life in rural areas consisting of six dimensions. Then, using the entropy method, exploratory spatial data analysis and geo-detector, we elaborate spatial pattern characteristics and influencing factors of quality of life in rural areas of the province. Our results suggest the following: (1) The spatial distribution pattern of quality of life indicates that the overall feature is high to low from the east to west and descends from east to west. (2) From the perspective of the spatial correlation pattern, obviously, the spatial pattern of High-High area and Low-Low area present a pattern of agglomeration. High-High area is mainly located in Changsha-Zhuzhou-Xiangtan urban agglomeration and its adjacent counties, while Low-Low area is mainly in western Hunan. (3) The primary factors influencing quality of life are per capita GDP, urbanization level, distance from provincial capital, and elevation. The secondary factors are the slope, the proportion of secondary and tertiary industries, the proportion of non-agricultural labor in rural areas, and total power of agricultural machinery. To realize rural revitalization and improve the quality of life in rural areas, we should give priority to rural industrial and economic revitalization based on eco-environmental protection, actively strengthen the interconnection between regions and enhance the modernization of infrastructure and public service facilities in rural areas.

认知乡村生活质量的地域分异规律及形成原因,既是新时代乡村地理学研究的新内容,也是科学实施“乡村振兴”战略的内在要求。以湖南省101个县（市、区）为研究单元,构建由6个维度组成的乡村生活质量评价指标体系,运用熵权法、探索性空间数据分析（ESDA）及地理探测器等研究方法,研究湖南乡村生活质量的空间格局特征及其影响因素。结果表明：湖南乡村生活质量总体上呈现出东高西低并由东向西依次递减的空间分布态势;从空间关联格局来看,HH区和LL区在空间上集聚格局明显,显著HH区主要分布在长株潭城市群地区和周边临近县域,显著LL区主要分布在大湘西地区;影响湖南乡村生活质量空间格局的重要因素为人均GDP、城镇化水平、离省会城市距离、海拔,次重要因素为坡度、第二第三产业占比、农村非农劳动力占比、农业机械总动力。振兴乡村,提高乡村生活质量应在充分保护乡村生态环境的基础上,把乡村产业振兴和经济振兴放在优先的位置,应积极改善广大乡村地区的互联互通条件,促进乡村地区基础设施和公共服务设施的现代化。

The reforms of global production modes and social systems have accelerated the process of urbanization, and the urban-rural flow speeds up spatial differentiation in the rural suburbs. Based on spatial production theory and game theory, this paper analyzes the spatial differentiation and its influence mechanism in Beicun in the suburbs of Guangzhou. The results are as follows: (1) Since the 1980s, Beicun has experienced three stages: agricultural development, industrial development, and service industry development. The industry has changed from single to diversified, and the transformation from agricultural decentralization to rural community has been realized. (2) In the transformation of rural economic development, the land use type and structure of Beicun tended to be diversified, and the spatial relationship of various types of land use was complicated, emerging in new characteristics of land for mixed commercial and residential use, and mixed industrial and commercial use, gradually forming a circle-type spatial layout structure model of "public service facilities-traditional and modern residential areas-commercial areas-agricultural and industrial areas". (3)The diversification of the rural material space was mainly due to the intervention of new industries and the transformation of leading industries. Both endogenous land-transferring mechanisms and exogenous urban capital promoted the industrialization process, and market power promoted the transformation of manufacturing industry into a service industry. (4) The industrialization process promoted the functional replacement of historical buildings by village organizations; changed the social relationship of the village to the blood clan and made it more geographically oriented; and produced an occupational relationship between migrant workers and urban low-income groups. (5) The multi-differentiation of suburban rural space followed the game logic of capital and land interests. The rural community played a key mediation role in the competition for space and in the game interests among local villagers, farmers, cooperative economy, industrial operators, and service owners.

全球生产方式变革和社会制度改革加速了城市化进程,城乡要素流动加快了城郊乡村空间分化,以空间生产和博弈论为理论基础,针对广州市城郊北村的空间分化过程及机制进行解析,以期丰富乡村空间分化和治理的理论。结果表明：① 20世纪80年代以来,北村的发展经历了农业发展、工业发展和服务业发展等3个阶段,业态结构从单一的农业逐渐转向为多元,兼有农业去中心化向农村社区化发展转变过程。② 伴随村域经济发展转型,北村土地利用类型和结构趋向多元分化,各类用地空间关系变得更加复杂化,呈现出商住混合和工商混合的用地新特征,空间上逐渐形成“公共服务设施—传统居住区和现代居住区—商业区—农业区和工业区”的圈层式布局模式。③ 乡村物质空间的多元分化动力主要源于新产业介入和主导产业的更替转变。内生的土地流转方式和外生的城市资本共同推动乡村工业化进程,市场力推动了产业发展向服务业转型。④ 乡村工业化驱动了村社组织对历史建筑功能的置换,改变了乡村以宗族血缘和地缘为主的社会关系,产生了由外来务工人员和城市低收入阶层组成的业缘关系,乡村社会关系逐渐多元化。⑤ 城郊乡村空间多元分化遵循着资本和土地利益博弈逻辑。本地村民、代耕农民、经济合作社、工业经营主体和服务业经营主体等行为主体对空间进行争夺和利益博弈,村社组织起着关键的中介作用。

Recent research in rural geography has shown increasing interest in the ways in which rurality is performed and enacted by diverse actors. Rural geographers have also demonstrated increasing awareness of their own ‘performances’ as researchers, including their enactment of multiple roles in engaging with research subjects, funders and users. This progress report for rural geography discusses recent contributions on these two related themes, briefly summarizing research on the performance and enactment of rurality and rural identities before proceeding to review publications that have reflected on methodological developments, positionality in rural research and political and policy engagement in rural geography.

The past two years have witnessed an explosive growth of digital twin research and its increasing application in a wide range of fields and scales. This urgently calls for a methodological framework to guide and consolidate the research and application of digital twin in various fields and with different structures and scales. In this paper, we first summarized and analyzed the development patterns of digital twin research in various fields, and then coined a term "digital twin space" (with definition and characteristics) as a framework to generalize and consolidate digital twins of various scales. Taking digital twin city as an example, we briefly elaborated the application of twin space. Space, as the carrier of the research object or the research object itself in geography, consists of natural geographical space, social space, and cyberspace. These three types of spaces, however, have not been fully integrated in different branches of geography. In order to boost comprehensive geography research, we propose to reconstruct geographical space research by integrating the three types of geographical spaces with the twin space. Digital twin space can interact with the physical space bilaterally in real time and thus break the barriers among the three types of geographical spaces from inside, which further helps realize the tasks of simulating realities, predicting changes, and regulating processes in integrated geography research.

数字孪生研究呈现由平稳发展到爆发态势,应用领域迅速增加,规模不断扩大,亟需发展用于指导各个领域和不同结构与规模的数字孪生研究与应用的方法论体系。本文在总结分析各个领域数字孪生发展过程和趋势的基础上,提出以孪生空间作为概括和统摄各尺度数字孪生体的框架,并给出了孪生空间的定义和一般特征。然后,以目前已有初步实践基础的孪生城市为例简要阐述了其应用。作为地理学研究对象的载体抑或研究对象本身的空间,由自然地理空间、人文社会空间和地理信息空间三元空间构成,彼此整合度不高。为更有效地开展地理学综合研究,我们提出以孪生空间整合三元空间,重构地理研究空间。孪生空间具有与物理空间的双向实时互馈特征,能够打破地理三元空间内部的壁垒,进而实现模拟现实、预测变化和调控过程的地理综合研究任务。

Targeted poverty alleviation is a pillar of China's new and innovative anti-poverty and development strategy. China is an agricultural country with a large but poor rural population. At the village level, poverty alleviation has the potential to affect millions of citizens. The Loess Plateau is a composite of fragile ecological environment and rural poverty communities. As a backward economy often twins with fragile ecology, studying poverty from a multidimensional perspective in tandem with spatial heterogeneity and its influencing factors can provide an effective analysis of poverty in regions with characteristics similar to those of the Loess Plateau. This study features Pengyang, which is a poverty-stricken county located on the Loess Plateau, and relies on the approach by Alkire and Foster to measure multidimensional poverty, using spatial autocorrelation, Geodetector, OLSR and quantile regression (QR) analysis. Results from our investigation show that the study area has a deep level of multidimensional poverty, with a Multidimensional Poverty Index (MPI) score of 0.045. The rates of health, housing, and education dimensions were 0.263, 0.245, and 0.227, respectively. Moran's I of MPI was 0.2, which indicates that multidimensional poverty was positively correlated with a spatial pattern of "north, south, middle; high, high, low". Using Geodetector, the mean distance between villages and the center of town, as well as the mean elevation of the villages and mean distance to a river, were found to be the main factors of spatial heterogeneity within the MPI. The q-values of them were 0.552, 0.396, and 0.326, respectively, and the result of regression analysis conforms to the Geodetector. The interaction of the above factors enabled the creation of a multidimensional poverty spatial heterogeneity mechanism at village level for the Loess Plateau, revealing a lack in welfare of farmers, the poor of infrastructure, the congenital deficiency and stalled development of industry, and weak government functioning at the township level. Our results suggest that new strategies regarding urbanization should be investigated in order to improve and ensure the quality of public services in areas with similar characteristic as the Loess Plateau. These new strategies could enable the resolution of problems from the root, such as designing public goods and services that fill gaps in current health care and housing options, as well as the operation of transport facilities at the village level. This could help to mitigate welfare loss of farmers as well as reduce the negative impact of health, housing, education, and other dimensions of poverty.

黄土高原属于生态环境脆弱与农村经济贫困的复合区域,研究其村域多维贫困及空间异质性有助揭示乡村贫困原因及空间格局。以宁夏彭阳县为研究区,运用A-F法对村域多维贫困进行测度,并结合空间自相关、地理探测器和回归分析方法对其空间异质性进行了系统分析。结果表明：① 研究区农户多维贫困程度较深,K = 3时,多维贫困指数（MPI）为0.045,平均剥夺份额0.361,主要致贫维度是住房、健康和教育,贡献率分别为0.263、0.245、0.227,收入维度贡献率仅占0.130;② MPI空间自相关Moran's I值为0.2,即存在正相关,呈现“南北高,中部低”的格局;③ 地理探测器结果显示行政村到镇中心的距离、村平均高程、村委会到主要河流的距离是影响MPI空间异质性的主要因子,其决定力q值分别为0.552、0.396、0.326,且在最小二乘线性回归（OLSR）和分位数回归（QR）中均通过了1%的显著性检验;④ 各因子间的相互作用形成了黄土高原农户福利缺失、基础设施落后与产业发展受阻、乡镇政府职能被削弱的村域多维贫困空间分异机制。⑤ 最后提出推进新型城镇化建设,实现公共服务均等化,从根源上解决农村医疗、住房、交通设施落后等难题的建议。

There is a big gap between general rural modernization paradigm and huge empirical rural geography studies. This gap results in impotent development strategies on regionally differentiated countryside. Based on multifunctional agriculture theory and multifunctional rural theory which emerged in Western World as a new paradigm, this paper discusses the multiple objectives, differentiated pathways and policies of agriculture and rural development in China. Firstly, this paper reflects the problems and challenges caused by modernization paradigm in rural China on economic, social, and environmental aspects, as well as that of western developed countries. It can be concluded that conventional agricultural and rural modernization is developed largely at the expense of rural environment, social fabric and economic viabilities. Obviously, "modernization development paradigm" alone is not enough for healthy agricultural and rural development in such booming economy as China. A better paradigm should be developed which takes economic development, social justice and environmental sustainability into account at the same time. After a brief review of multifunctional agriculture theory and multifunctional rural theory overseas, the multiple objectives of agriculture and rural development in China are put forward. These multiple objectives, however, should not and could not be a burden on rural space indiscriminatingly due to the enormous differentiation of natural and socio-economic conditions. Thus, the final but main part of this paper envisions the differentiated pathways and policy portfolios of agricultural and rural development in China from the perspective of territorial division.

传统的乡村现代化发展范式和地理学关于乡村的区域差异研究之间存在缝隙,不足以为快速演化分异的乡村地域发展提供直接理论支撑。本文引入西方近20年来逐渐兴起的多功能农业与多功能乡村理论,从新的视角观察思考中国乡村多元化发展的目标、路径及对策。首先从经济、社会和环境三个方面反思中国乡村现代化的基本历程与得失,以及西方国家乡村现代化产生的问题,指出传统的农业农村现代化发展在很大程度是以牺牲乡村环境和乡村社会机理脆弱化为代价的,也造成了乡村经济对外部支持的过度依赖,仅仅强调“现代化”发展范式显然是不够的;然后简要介绍了国外多功能农业与多功能乡村理论;在此基础上,从功能角度提出中国农业农村发展的多元目标,推演探讨农业农村发展的区域差异化路径及对策。

Under the background of unified management of urban and rural space, rural spatial governance has become an important part of the spatial governance system. Conducting in-depth theoretical and practical research on rural spatial governance and analyzing the mechanisms and path of rural spatial governance in national spatial planning will be conducive to improving the planning and control system of rural space. Starting from the connotation rural spatial governance, this paper constructs a theoretical analysis framework of rural spatial governance based on the comprehensive perspective of spatial governance, discusses the internal mechanism and feasible paths of rural spatial governance in territorial spatial planning, and then realizes the theoretical and practical research of rural spatial governance. The conclusions are as follows: (1) Rural spatial governance starts from the coordination theory of human-land relations in the rural regional system. Through planning and negotiation, it realizes effective control of rural space usage, and orderly allocation of space rights. Rural spatial governance highlights the comprehensive governance process that combines "top-down" and "bottom-up" participation by multiple subjects. (2) Through the "action-efficiency-target" system, the comprehensive governance analysis framework of "matter-organization-ownership" in rural space provides an effective scheme for the construction of multiple rural spatial governance that combines rigidity and flexibility, interaction between material space and space relationship, and superposition of spatial ownership and spatial organization. (3) The rural spatial governance features of interconnecting various scales (region-village-plot) are conducive to improving the rural spatial governance system. (4) The multiple governance means, participation modes and value-sharing mechanisms of rural spatial governance are conducive to enriching the territorial spatial planning system, promoting the integration of multiple regulations, refining the control of territorial space use, and ensuring good rural governance and ecological governance. (5) Rural spatial governance uses mobilization strategies of "top-down" and "bottom-up", and creates conditions for the implementation of practical village planning and revitalization strategies through the construction of new village operation models and reconstruction of organizational mechanisms.

城乡国土空间统一用途管制背景下,乡村空间治理成为国土空间治理体系的重要组成部分。从乡村空间治理的理论内涵出发,构建了乡村空间治理理论分析框架,探讨了乡村空间治理作用于国土空间规划的内在机制和可行路径。结论如下：① 乡村空间治理是以乡村空间为治理对象,通过规划和协商等方式,实现乡村空间用途有效管制,空间权利有序配置,凸显多元主体参与的“自上而下”和“自下而上”相结合的综合治理过程;② 通过“举措—效能—目标”体系,构建了刚性与弹性结合、物质空间与空间关系交互、空间权属与空间组织叠加的乡村空间“物质—组织—权属”综合治理分析框架;③ 多级尺度互联互通（区域—村域—地块）的乡村空间治理特征有利于完善乡村空间治理体系;④ 乡村空间治理通过多种手段并施、多元主体参与、多重价值共享,完善国土空间规划体系,推进多规融合,细化国土空间用途管制,促进乡村善治和生态治理;⑤ 乡村空间治理通过“自上而下”和“自下而上”相结合的动员和行动策略,构建新型村庄运营模式和组织机制,为落实实用性村庄规划和乡村振兴战略创造条件。

This article describes the preliminary outcome of interdisciplinary research that arises from a study by the Italian Ministry of Infrastructures and Transport and the Abruzzo Region (IT) on local development processes in central Italy, and specifically in the Median Macroregion, whose results have been extended to European context. It concerns the European spatial planning, specifically the study of an original interpretative model of European space, called Territorial Frames - TFs, a particular multi-scale infrastructural mesh that connects the 'local' territories with 'global' ones and that can represent the activating element of processes and policies of spatial development of settlements, of processes of valorization of the productive, naturalistic and landscape sectors. This new model interfaces with the territorial reticular component through the concept of polycentrism, also projecting evolution, and with that of the governance of development projects, using the potential of European Macroregions. The main objective of the research is to feed the topic of spatial planning, oriented to the integration between territories through a cross-scale approach, and to the activation of new processes of sustainable territorial development, with reference to the economically disadvantaged inner areas in a context of Macroregional governance.

Vulnerability, one of the major properties of rural production space system (RPSS), is an effective measure in how system will be susceptible to negative effects or damage, as well as the way to achieving sustainable development of the system. This study establishes an evaluation index system and model of the vulnerability of RPSS and quantitatively measures the RPSS vulnerability of Chongqing from 2007 to 2017 to reveal its spatio-temporal differentiation. Accordingly it identifies vulnerability types and proposes targeted regulation strategies. The results are shown as follows. (1) The vulnerability of the RPSS is a comprehensive measure of the operating state of the system consisting of exposure, sensitivity and adaptability. It embodies the balance relationship of mutual influence and interaction that lies between rural diversified subjects centered on "human" and the rural production space centered on "land". (2) On the whole, the exposure of the RPSS shows an upward trend and a spatial pattern of "partly prominent, high in the north and low in the south"; the sensitivity shows a downward trend of fluctuation and a spatial pattern of "high in the east and low in the west"; the adaptability shows a rapidly increasing trend and a spatial pattern of "high in the west and low in the east". The overall vulnerability of RPSS presents a downward trend and the spatial pattern of "high in the east and low in the west". (3) After dividing the vulnerability of the RPSS into four types, namely, including adaptability type, exposure-sensitivity type, sensitivity-adaptation type, and strong comprehensive type, and based on the principle of "ecological priority - classified regulation - highlight emphasis - local adaptation", this study proposes differentiated "vulnerability reduction" strategies for different types, so as to guide the sustainable development of RPSS.

脆弱性作为乡村生产空间系统的重要属性,是探讨系统易受负面影响或损害程度的有效度量、解析系统可持续发展趋势的有效途径。以重庆市为研究区,以2007—2017年为研究时段,建立乡村生产空间系统脆弱性评价指标体系和评价模型,以定量测度乡村生产空间系统脆弱性,揭示其时空分异特征,进而划分脆弱性类型并提出差异化调控策略。结果表明:① 乡村生产空间系统脆弱性是系统运行状态的综合度量,包含暴露度、敏感性和适应能力3个要素,其体现了以“人”为核心的乡村多元主体与以“地”为核心的乡村生产空间之间相互影响、相互作用的互动制衡关系。② 乡村生产空间系统暴露度总体呈上升趋势及“局部突出、北高南低”的空间格局特征;敏感性总体呈波动下降趋势及“东高西低”的空间格局特征;适应能力总体呈快速上升趋势及“西高东低”的空间格局特征;脆弱性总体呈下降趋势及“东高西低”的空间格局特征。③ 将重庆市乡村生产空间系统脆弱性划分为适应能力脆弱型、暴露—敏感脆弱型、敏感—适应脆弱型和强综合脆弱型4种类型,并按照“生态优先—分类调控—重点突出—因地施策”原则针对不同类型提出差异化“降脆”策略,以引导乡村生产空间系统可持续发展。

Geography is a subject of "exploring the laws of nature, declaring the human essence", with characteristics of comprehensiveness and interactiveness. Since the 1980s, Geography plays an important role in global environmental change research programs. Theories, methods and techniques of Geography have become the basis for solving the problems of the sustainable development of human society is facing. Originated in the global environment change research, and combined with the social science research, The " Future Earth" research plan represents the direction of the development of Geography in the new period. In contemporary, Geography research methods have shift from survey, observation, and records, drawings and other traditional research methods to the modern scientific methods such as spatial statistics, earth observation, GIS, indoor and outdoor simulation and modeling, decision-making system, etc., and are gradually tend to comprehensive and quantitative. As the problems that Geography is facing are more complex and more comprehensive, the Geography research issues become more comprehensive and diverse, and attract more extensive subjects to participate in. In more and more field, the angle of Geography are considered. The discipline boundary that concepts and tools belonging to is blurring. In the new era, the geography, is heading for geographical science. China is an ideal geography test sites of studying the problem of the sustainable development of human society. The future development of Chinese Geography needs to deepen the comprehensive and integrated understanding of the complex man-land system, and strengthen the research of global problems. To achieve the goal of geographical science and social service value, the internationalization level of Chinese geographical science needs to be promoted, and the ability of using advanced technology to parse geographical phenomenon needs to be improved.

地理学是“探索自然规律,昭示人文精华”的一门学科,具有综合性、交叉性特点。20世纪80年代以来,地理学在全球环境变化研究计划中扮演了重要角色,地理学的理论、方法和技术已经成为解决人类社会面临的可持续发展问题的基础。起源于全球环境变化研究,并结合了社会科学研究的“未来地球”研究计划,代表了新时期地理学发展的方向。当代地理学研究方法已经从勘察、观测、记录、制图等传统的研究方法向空间统计、对地观测、GIS、室内外模拟、建模、决策系统等现代科学方法转变,逐渐走向综合性、定量化;随着地理学面临的问题更加复杂、更加综合,地理学研究议题变得更为综合和多元,吸引了更为广泛的学科参与,地理学视角在越来越多的领域得到重视,概念和工具所属的学科边界正变得模糊。新时期的地理学正在走向地理科学。中国是研究人类社会的可持续发展问题的一个理想的地理科学试验场所,中国地理科学未来的发展需要以综合的角度加深对人地复杂系统全面而综合的理解,需要加强全球性问题的研究,全面提升中国地理科学国际化水平,普遍提高先进技术解析地理现象的能力,系统实现地理科学的社会服务价值,促进中国从地理学大国走向地理学强国。

Since the 20th century, geography came into being with distinctive disciplinary characteristics by sustained effort of geographers. This paper puts forward predicament from cognitive and thought in the new era, and depicts new geographic characteristics from five aspects: new technology, new orders, new data, new approaches and new driving factors. According to new content of geo-regionality and new approaches of geo-comprehensiveness, the paper proposes that complexity research would be a successful new path in geography, and the complexity would be the third characteristic of geography. Then, the paper details some complex spatial patterns, complex time processes and complex spatio-temporal mechanisms in geography research. Based on the concept of a geographic complex system, this paper presents core issues and corresponding complex research tools. Finally, the paper puts forward new challenges and new requirements for geography in the new era.

20世纪以来,经地理学者不断探索和努力,地理学已经形成了其特有的学科特征。首先从认知方法和思维角度,阐述了新时代地理学所面临的困境;从新技术、新秩序、新数据、新方法以及新动因等方面,诠释了地理学的新时代特征。其次,针对地理区域性的新内涵和地理综合性研究所需的新方法,提出了复杂性研究是地理学成功的新路径,并认为复杂性是地理学研究的第三特征。再次,重点讨论了地理研究存在的空间复杂格局、时间复杂过程和时空复杂机制,进而解释了地理复杂系统的基本概念,并就地理复杂系统的核心问题提供了相应的研究方法。最后,提出了新时代地理学面临的新挑战和新要求。

Integrated studies of coupled human and natural systems reveal new and complex patterns and processes not evident when studied by social or natural scientists separately. Synthesis of six case studies from around the world shows that couplings between human and natural systems vary across space, time, and organizational units. They also exhibit nonlinear dynamics with thresholds, reciprocal feedback loops, time lags, resilience, heterogeneity, and surprises. Furthermore, past couplings have legacy effects on present conditions and future possibilities.

The early studies on the relationships between man and land in geography mostly focused on local regions and held the idea that "the land and water resources in a region feed the person in the region". In the traditional agricultural society, which relies heavily on natural resources, the idea, and regional geographic research and management practice under its guidance play a positive role in promoting the development between man and nature, and sustainable resource use. With the continuous increase in openness of man and land system resulted from development of science and technology and transport improvement, regional systems on different scales and at different economic development levels have formed an interdependent and coupled geographic network. Every region becomes a node in this network, and the formation and solution of regional problems are closely related to other nodes in the network, and are related to internal and external factors of the regional system. In some cases, external factors even play a more important role. The introduction of some concepts and methods marks the paradigm transformation of man-land relationship research from local thinking paradigm to global networked thinking paradigm, such as virtual water, ecological footprint, carbon emissions due to goods trade, resource link and tele-coupling of man-land relationship. This study discusses the paradigm transformation from three aspects: the evolution characteristics of man-land system, the changes of thinking paradigm and study methods in man-land relationships, and the realization paths and practical significances of the transformation of thinking paradigm in man-land relationship research. According to new ideas and thinking paradigms, traditional local thinking modes and related research themes such as regional carrying capacity can not fully express the new characteristics of man-land relationships. At present, studies related to regional carrying capacity have become an important issue in land use planning and urban planning in China. In the development of land use planning at different levels, "evaluation of resource and environmental carrying capacity" has become the premise and basis of planning. In the implementation of this concept, we usually simply uses population size as the control index. In the context of an increasingly open system, studies in the carrying capacity of resources and environment may be re-examined. This is especially necessary in smaller scale regional systems (e.g., at a county level).

早期地理学关于人地关系的研究多基于本土思维,秉持“一方水土养育一方人”的理念。在严重依赖自然资源的传统农业社会,这一理念及其指导下的区域地理研究和区域管理实践,对于促进人与自然的协调发展起到积极作用。随着系统开放程度的增加,规模不等、层级不同的地域系统形成了一个相互依赖、相互耦合的地理网络。每个地域都是这个网络上的节点,地域问题的产生与解决与网络上其他节点有密切关联、与地域系统内外因素紧密相关,地域外因素有时甚至起主导作用。虚拟水、生态足迹、贸易隐含碳排放、资源纽带关系及人地关系远程耦合等概念和方法的提出,标志着人地关系研究范式从本土思维向全球网络化思维转型。依照新的理念和研究范式,传统的本土思维范式及建立在此范式上的相关研究主题（如区域承载力）应该受到重新审视。

Regime shifts are large, abrupt, and persistent critical transitions in the function and structure of ecosystems. Yet, it is unknown how these transitions will interact, whether the occurrence of one will increase the likelihood of another or simply correlate at distant places. We explored two types of cascading effects: Domino effects create one-way dependencies, whereas hidden feedbacks produce two-way interactions. We compare them with the control case of driver sharing, which can induce correlations. Using 30 regime shifts described as networks, we show that 45% of regime shift pairwise combinations present at least one plausible structural interdependence. The likelihood of cascading effects depends on cross-scale interactions but differs for each type. Management of regime shifts should account for potential connections.Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

A better understanding of the connotation of "territory" is a prerequisite for developing the theoretical system and advancing the practical work of spatial planning. It is necessary to constantly update the understanding of "territory" in accordance with the development of disciplines and the changes in the real needs of spatial governance. Therefore, this journal invited 15 young scholars to discuss the connotation of "territory". The main points of view are as follows: (1) Territory is a complex coupled human and natural systems, with the characteristics of pluralism on elements and nesting on spatial and temporal scales. It is necessary to use the thinking of "landscape, forest, field, lake and grass" as a life community to carry out the comprehensive development and utilization and systematic restoration and protection of territory, so that it can become a natural governance platform. (2) Territory is a network space constructed by "flow" and a relational space composed of different stakeholders. It is necessary to integrate the territory through the "space of flows" to promote the sharing of resources and elements between regions to achieve coordinated development; it is also necessary to pay attention to the reconstruction of human and natural relationships and interpersonal relationships, coordinate the interests of multiple subjects, and achieve harmonious development. (3) Territory is a human space. It is necessary to fully perceive the risks, suitability, constraints, and accessibility of the territory. We need compile people-oriented spatial planning to enhance the ecological value, aesthetic value and humanistic care of territory. (4) Territory is the object of spatial planning and governance. It is a specific spatial carrier with marine space, rural space and cultural space, etc. It has attributes such as rights and assets. It is necessary to realize the unified management of resources and assets in the spatial planning, and highlight its economic value, social value and ecological value to achieve the diversified needs of high-quality development and high-quality life for territory.

科学辨析“国土空间”概念内涵是推进国土空间规划编制、完善国土空间规划理论的前提。应根据国土空间治理需求变化和学科理论发展需要,及时更新完善对“国土空间”的理解。本刊邀请15位青年学者研讨“国土空间”的概念内涵及国土空间规划编制建议,主要观点如下：（1）国土空间是复杂的人地耦合系统,具有构成要素多元性、时空尺度嵌套性等特征。需要用山水林田湖草沙是一个生命共同体的思维,进行国土空间的综合开发利用与系统修复保护,提出基于自然的空间治理方案。（2）国土空间是“流”所构建的网络空间,是不同利益主体组成的关系空间和为精细化治理服务的可计算领域。需要通过“流空间”进行国土空间的整合,推动区域之间资源和要素的共享,实现协同发展;也需要重视人地关系和人际关系的重构,协调多元主体的利益诉求,实现和谐发展;还需要完善国土空间开发管控的技术手段,平衡国土空间规划中的灵活性与统一性矛盾。（3）国土空间是有温度的空间。需要充分感知国土空间的风险性、适宜性、约束性、可达性,编制“以人民为中心”的国土空间规划,提升国土空间的人文关怀、生态功能和美学价值。（4）国土空间是国土空间规划和空间治理的对象,是具体的海洋空间、乡村空间、文化空间等,具有载体属性、资产属性、权利属性等,需要在国土空间规划中实现资源资产统一管理,彰显其经济价值、社会价值和生态价值,满足高质量发展和高品质生活对国土空间的多样化需求。

The comprehensive regionalization of Chinese human geography is based on the rules governing regional differentiation of Chinese physical geography factors. Based on regional differences and similarities in human factors, this study divides the whole country into two levels of relatively independent, complete and organically linked human geographic units. As a fundamental, comprehensive, cutting-edge, practical and important task, the comprehensive regionalization of human geography highlights the characteristics, regional and sub-regional features, complexity and variety of spatial differences between factors of Chinese human geography. It is capable of promoting the development of human geography based on local conditions, providing basic scientific support to national and local development strategies, such as the Belt and Road Strategy, new urbanization and environmental awareness, and creating a sound geopolitical environment in key areas. Using results from existing physical and human geography zoning studies, and in accordance with the principles of synthesis, dominant factors, the relative consistency of the natural environment, the relative consistency of economic and social development, the consistency of the regional cultural landscape, the continuity of spatial distribution and the integrity of county-level administrative divisions, and taking as its basis the division of human geography into 10 major factors (natural condition, the economy, population, culture, ethnicity, agriculture, transportation, urbanization, the settlement landscape and administrative divisions), this paper constructs an index system for the comprehensive regionalization of Chinese human geography through a combination of top-down and bottom-up zoning and spatial clustering analysis. In this study, Chinese human geography is divided into eight regions (first level) and 66 sub-regions (second level). The eight human geography regions are (I) Northeast China, (II) North China, (III) East China, (IV) Central China, (V) South China, (VI) Northwest China, (VII) Southwest China, and (VIII) Qinghai and Tibet. This zoning proposal fills gaps in studies involving the non-comprehensive regionalization of Chinese human geography. Each human geography region and sub-region has different topographical, climatic, ecological, population, urbanization, economic development, settlement landscape, regional cultural and ethno-religious attributes. This proposal on the comprehensive regionalization of Chinese human geography dovetails closely with previous studies on comprehensive regionalization in Chinese physical geography, Chinese economic zoning, and Chinese agriculture zoning. It shows that, under the dual roles of nature and humans, there are certain rules of regional differentiation that govern the comprehensive regionalization of Chinese human geography.

中国人文地理综合区划是以中国自然地理要素的地域分异规律为基础,充分考虑全国人文要素的地域分异性和相似性,将全国划分为不同空间层级、相对独立完整、并具有有机联系的特色人文地理单元。是一项基础性、综合性、前沿性与实用性的重要工作。通过人文地理综合区划,将突出中国人文地理要素的地域分异性、地方特色性和复杂多样性,因地制宜地推动人文地理学科发展,为面向国家和地方发展战略需求推动“一带一路”建设、新型城镇化和生态文明建设、为营造重点地区良好的地缘政治环境提供基础性的科学支撑。本文在吸纳已有的各类自然和人文地理区划成果的基础上,按照综合性、主导性、自然环境相对一致性、经济社会发展相对一致性、地域文化景观一致性、空间分布连续性与县级行政区划完整性等原则,以自然、经济、人口、文化、民族、农业、交通、城镇化、聚落景观和行政区划10大要素为基础划分依据,构建中国人文地理综合区划指标体系,采用自上而下与自下而上相结合的区划思路和空间聚类分析方法,将中国人文地理划分为东北人文地理大区Ⅰ、华北人文地理大区Ⅱ、华东人文地理大区Ⅲ、华中人文地理大区Ⅳ、华南人文地理大区Ⅴ、西北人文地理大区Ⅵ、西南人文地理大区Ⅶ和青藏人文地理大区Ⅷ共8个人文地理大区和66个人文地理区。该区划方案填补了中国人文地理没有综合区划的空白。各个人文地理大区和各个人文地理区之间呈现出不同的地形地貌属性、气候属性、生态属性、人口属性、城镇化属性、经济发展属性、聚落景观属性、地域文化属性和民族宗教属性。中国人文地理综合区划方案与已经划出的中国自然地理综合区划、中国经济区划、中国农业区划等有较大程度的吻合性,体现出在自然与人文要素双重作用下的中国人文地理综合区划的地域分异规律。

Compared with the increasingly obvious humanistic tendency in foreign human geography, China's human and economic geography still follows Academician Wu Chuanjun's theory, with human and economic geography as an interdisciplinary subject which is the study of the formation and evolution of the distribution pattern of human activities under the interaction of natural circle and human circle. And China's mainstream school on human and economic geography has been formed with studies on spatio-temporal rule of sustainable development on territories with different space scales, territories with important production and living, and territories with typical geospatial patterns as the main research points. "Territorial System of Human-environment Interaction", developed by Academician Wu Chuanjun, is the important theoretical foundation not only for human and economic geography, but also for the comprehensive research on geography. The essence of the theory, which includes territorial functional, system structured, orderly process for spatio-temporal variation, and the difference and controllability of human-environment interaction system effect, is entirely harmonious with the forefront of thought of the "Future Earth" studies program. In recent decade, with scientific mode of urbanization, major function oriented zoning, road map for the Belt and Road Initiative, Beijing-Tianjin-Hebei urban agglomeration, rural hollowing and targeted poverty alleviation, revitalization of Northeast China and transformation of resource-based cities, and administrative area optimization as the main research objects, theoretical methods have been developed in the aspects of important sustainable process of human and economic geography, territorial function formation and ordering rules for comprehensive geographical pattern, formation and evolution mechanism of urban agglomeration and its resources and environmental effects, sustainable life cycle and the revitalization of the path for problem areas, the interaction between geopolitics, geo-economy and regions, and effect of cultural boundaries on sustainable development. China's human and economic geography has made great progress in discipline development, and the application results have produced profound influences on the ecological civilization construction and sustainable development in recent years. With decades of hard work, China's human and economic geography has reached a world-class advanced level, so as to console the soul and spirit of Wu Chuanjun on the occasion of commemoration of the centenary of his birth.

同近年国外人文地理学呈现人文化趋势相比,中国人文与经济地理学秉承吴传钧先生关于人文与经济地理学是研究自然圈与人文圈相互作用下、人类活动分布格局形成和演变规律的一门交叉学科的定位,形成了以不同空间尺度的地域、重要的生产生活领域、以及典型的地域空间类型的可持续发展时空规律作为研究指向的中国人文与经济地理学主流学派。吴先生提出的“人地关系地域系统”理论不仅为人文与经济地理学,而且是为整个地理学的综合研究提供了重要的理论基石。地域功能性、系统结构化、时空变异有序过程、以及人地系统效应的差异性及可调控性,是该理论的精髓,这与“未来地球”研究计划的前沿思想完全契合。近10年来,以城镇化科学模式、主体功能区划、一带一路路线图、京津冀城市群、农村空心化和精准扶贫、东北振兴与资源型城市转型、行政区划优化等为研究对象,发展了人文与经济地理重要的可持续过程、地域功能形成和综合地理格局有序化规律、城市群形成演化机理及其资源环境效应、问题地区可持续生命周期与振兴路径、地缘政治地缘经济和区域间相互作用关系、人文界线对可持续发展的影响等理论方法。人文与经济地理学科建设取得重要进展,应用成果对近年来中国生态文明建设和可持续发展产生了重要影响。中国人文与经济地理学在全球范围内发展态势最佳、总体水平领先,以此告慰吴传钧先生,并以此纪念吴传钧先生百年诞辰。

This paper introduces the "life quality theory". Based on the two-way interactive mechanism between space of rural settlements and the life quality, the paper researches the optimization mode of spatial organization of rural settlements in three aspects, which are the integration of rural settlement spatial functions, the optimization of spatial structure and the regulation of spatial scale, so as to build optimization mode and framework of spatial organization of rural settlements with high quality life. The study suggests that: (1) The settlement is the spatial carrier of life quality and the life quality is the essential content of settlements. The two mentioned above influence and improve each other. So, the reasonable rural settlement space is the important precondition for higher life quality. (2) The type of spatial function of rural settlements can be divided into livelihood maintaining, industrial developing and quality optimizing, and the optimization of spatial organization of rural settlements oriented by life quality requires promotion of livelihood maintaining, integration of industrial developing and engagement of quality optimizing. (3) There are two important aspects in the optimization of spatial organization of rural settlements. The one is to promote the organic concentration of living space, agricultural space and industrial space, the organic evacuation of social intercourse space, recreational space and services space, and the organic balance of living space, production space and ecological space, in order to realize the reasonable proportion and optimized combination of internal spatial type in settlements. And the other one is to form a functional structure level of "comprehensive village - featured village" and build spatial organization mode of settlements connected by rural roads by switching the location and adjusting the function, with the destruction of underdeveloped villages, the saving of normal villages, the enlargement of important villages, and the construction of new villages. (4) As an ideal mode of rural settlements space optimization oriented by life quality, RROD mode should be built at a rational scale of unit settlement and distance between settlements, leading to an RROD and RROD system with rational structure, auxiliary facility, fully function and well-organized distribution.

引入“生活质量理论”,基于乡村聚落空间与生活质量的双向循环互动机理,从乡村聚落空间功能整合、空间结构优化、空间尺度调控等三个方面研究乡村聚落空间优化问题,试图构建有效提高生活质量的乡村聚落空间优化框架与模式。研究认为：① 聚落是生活质量的空间载体,生活质量是聚落的本质内容,乡村聚落与生活质量相互促进、相互影响,构建科学合理的乡村聚落空间是提高农民生活质量的重要前提。② 乡村聚落空间功能类型可以划分为生计维持型功能、产业发展型功能与品质提升型功能,生活质量导向的乡村聚落空间功能优化,重点在于提升生计维持型功能,整合产业发展型功能,植入品质提升型功能。③ 乡村聚落空间结构优化的重点有两个方面,一是要促进居住空间、农业空间、工业空间有机集聚,社会交往空间、休闲空间、服务空间有机疏散,生活空间、生产空间、生态空间有机均衡,以实现聚落内部空间类型比例合理化与组合最优化;二是要通过聚居区位转换与聚落职能调整,移拆部分衰落村落,保留部分一般村落,扩大部分重点村落,新建部分新型村落,形成“综合村—特色村”的功能结构等级,构建以乡村公路为链接的聚落体系空间组织模式。④ RROD模式是基于生活质量导向的乡村聚落空间优化的理想模式,该模式的构建要合理确定聚落单体的规模尺度与聚落之间的距离尺度,引导形成结构合理、设施配套、功能完备、分布有序的RROD和RROD体系。

A discipline has typically the following four key features, namely independent research objects, independent research questions, unique characteristics, and unique social services. This paper first discusses the nature of Geography from three aspects, to reveal the characteristics of modern Geography. First, the research object of Geography is changing from simple to complex evolution. In performing geographic research, we should well recognize the complexity of geographic systems. Second, the framework of geographic research questions is structured by the fusion among geographic features, space, and time. This paper explains the essential distinction between different geographic research questions, which promotes the development of the methods and technologies for answering these questions. Third, the philosophy of combining reductionism and holism is growing continuously. A new pattern of research has been formed based on new disciplines and technologies, which is the parallel development of the research on geographic features and that on systems. This paper then identifies the essential characteristics of geographic research, summarizes the key research questions in Geography, and discusses the multiple effects of driving mechanisms on the laws of Geography. An understanding of the fundamental characteristics and the modern value of Geography illustrated in this paper will be contribute to the societal development of Geography.

学科通常都具有独立的研究对象、独立的学科问题、独特的学科特征以及独特的社会服务功能。本文从3个方面论述了地理学的属性,进而认识现代地理学的时代特征。①地理学研究对象的演化经历了由简单向复杂的变化过程。在研究实践过程中,应充分认识地理系统的复杂属性。②地理的要素、空间与时间相互融合构成了独特的学科问题体系,阐述了不同地理问题的本质区别,进而促进解决不同地理问题的技术与方法体系建设。③“还原论”与“整体论”并举的地理学哲学思维方兴未艾。地理学强调的综合研究在当今时代受到了前所未有的重视。在新兴学科和新兴技术的支撑下,出现了地理要素和地理系统并行研究的新格局。本文从地理学研究的基本特征出发,总结了地理学研究的核心问题,探讨地理学驱动机制对地理规律的组合效应。理解地理学关键特征和时代价值,有助于探索地理学的社会发展契机。

The rise of integrated physical geography in China is not an accidental event. It was closely connected with the construction of the related theory system, the fostering of domestic professional scholars, the inheritance of academic history both at home and abroad, and the demand of social development in China. Specifically speaking, it was influenced by the spread of Western modern geography in the early 20th century, and the traditional harmony theory of Chinese ancient geography; it was also associated with the geographical intensive Sino-Soviet academic communications in the 1950s, as well as the needs of economic development in China. All in all, as a branch of physical geography, the integrated physical geography is a practice-oriented subject, focusing on comprehensive perspectives of natural regionalization, land change, and landscape service. The main contents of integrated physical geography studies in China have developed from agricultural regionalization and ecological regionalization to integrated regionalization; from land type, land source to land system; from landscape pattern research to landscape function and service research. Along with the change of the study theme, this subject kept on improving and deepening. Faced with the growing challenges such as rapid urban expansion, serious environmental pollution, and the natural resource exhaustion, the integrated physical geography in China is trying to explore new integrated approaches in accordance with the transformation of the time background. It chooses coupled human and natural systems as its study object, considers the synthesis of processes interaction at different regional scales, makes landscape sustainability as its key research field, and uses big data and high technology as its methodology.

综合自然地理学作为自然地理学的一个独立分支在中国的兴起并非“伊萨钦科讲学”的偶然,而是与之相关的理论体系构建、专业人员培养、中外历史传承及社会实践需求的综合结果。中国综合自然地理学发展一直以实践性为宗旨,围绕着自然区划、土地变化、景观服务等不同的综合视角,经历了从农业区划、生态区划到综合区划研究,从土地类型、土地资源到土地系统研究,从景观格局到景观功能与服务研究等主题的演进,学科体系不断完善和深化。新形势下,综合自然地理学将以人地耦合系统为研究对象,以过程耦合、区域集成为综合方向,以景观可持续性为重点领域,以大数据及高新技术为方法支撑,探索新的综合途径。

Geography is a subject which perceptibly reveals integration and regionalism. The integration means that the diversiform subjects in which geography is involved, and that the regionalism of geography is reflected by the regional differentiation. Through the comprehensive study of the interrelationships among the constituent elements of earth system and the relationship between natural and human systems, it helps us understand the variations of the past, present and future of earth system, and grasp the essence of these changes. Pattern helps us to understand the external features of the world and the process is conducive to the understanding of the internal biophysical mechanism of the world. On the basis of field observations and long-term comprehensive surveys, coupling of patterns and processes at different spatiotemporal scales is an effective way to understand and solve the problems in the field of geography. By analysis of the case studies in the Loess Plateau, the methods of coupling the patterns and processes in the integrated research of geography are discussed and explored.

地理学是一门以综合性和区域性见长的学科。地理学的综合性通过要素多样化来体现,区域性则表现为区域分异或区域差异。地理学综合研究是对地球表层各要素的相互作用以及人地关系的研究,帮助我们认识地球表层系统的过去、现状和未来的趋势,把握其变化的脉搏。格局是认识世界的表观,过程是理解事物变化的机理,基于长期的野外观测和综合调查以及模型模拟,对不同时空尺度下的地理格局与过程进行耦合研究,是从机理上理解与解决地理学综合研究的有效途径与方法。文章结合在黄土高原地区的相关研究案例,探讨了将格局与过程耦合研究的地理学综合研究的途径与方法。

Security is an important aspect for sustainable development of territorial space. It is also a crucial issue in planning, implementing, and supervision of territorial space. With the rapid development of urbanization and industrialization, people, goods, energy, resources and other factors flow more frequently in different regions, between urban and rural areas, and within urban spaces. The coupling relationships between human activities and natural resources have become more and more unstable, which exacerbates the risk of human survival. It is urgent to establish the territory spatial security framework faced with the uncertainty of human activity and elemental flows. This paper explores the security of territorial space from the perspective of mobility. On the basis of the safety of activities in different spaces and the safety of resources and ecology, we should consider the coupling of elemental flows, human activities, and resources and environment, as well as potential risks. The relationships between mobility and territory spatial security can be characterized from three aspects: the coupling of space of flows and space of places, the coordination among resource supply-flow-demand and the reconfiguration of resource, and elemental flows and the resilience of the territory spatial system. Towards safety goals of ecology, water, food, economy, society, and other elements, it is crucial to explore the uncertain impacts of various elemental flows on the man-land system and the mobility risks under extreme conditions such as natural disasters and sudden public safety incidents. It is also important to lead the self-adaptation and benign feedback adjustment between human activities and natural environmental systems through optimizing resource allocation and territory spatial layout. Thus, we proposed a framework of territory spatial security. In territory spatial planning, it is necessary to carry out the coupling coordination analysis with elemental flows and territorial spatial development and protection, to establish new analysis methods of territory spatial structure combining spatial forms and flows, and to enhance the functional flexibility of different spaces to adapt to the uncertainty of elemental flows and activity agglomeration, as well as to construct territory spatial supporting systems that synergize supply and demand. This study is of great significance for improving the sustainable development of territorial space and ensuring the safety of human survival.

人员、物资、能源资源等要素在不同层级空间的频繁流动,持续重构人类活动与自然环境关系,并对国土空间安全产生影响。从流动性视角进行国土空间安全探讨,提出在活动承载安全、资源与生态安全基础上,应考虑要素流动与人类活动、资源环境的耦合性及其潜在风险。流动性与国土空间安全的关系可以从“流”空间与场所空间耦合、“供—流—需”协调与资源配置安全、要素流与国土空间系统韧性三个方面来表征。以生态、水、粮食、经济、社会等安全塑造为目标,立足于各类要素流对人地关系系统影响的不确定性,以及自然灾害、突发公共安全事件等极端条件下的流动性风险,通过合理引导资源配置、科学布局国土空间要素等手段,实现人类活动、自然环境系统之间的自适应与良性反馈调节,形成安全韧性的国土空间格局与框架。在国土空间规划中,需要进行要素流与国土空间开发保护的耦合协调性分析评价,建立“形”与“流”结合的国土空间结构优化分析方法,增强不同空间的功能弹性以适应要素流动和活动集聚的不确定性,建立供需协同的国土空间支撑体系。研究对提升国土空间可持续发展水平以及保障人类生存安全具有重要意义。

For the sake of adapting to the changes of elements in both kernel system and external system of rural development, rural restructuring is a process of optimally allocating and efficiently managing the material and non-material elements affecting rural development, reshaping social and economic structures in rural areas and optimizing spatial pattern in rural territory, and approaching the structure optimization and function promotion of rural territorial system as well as the structure coordination and function complementation of urban-rural territorial system. Based on elaborating the concept and connotations of rural restructuring and the mechanism of promoting rural restructuring due to the evolution of "elements-structure-function", the paper probed the approaches of rural restructuring from the aspects of spatial restructuring, economic restructuring and social restructuring. In order to meet the current national strategic demands and meet the challenges of rural development in the process of urban-rural development transformation, it is in great urgency to strengthen the study on the patterns and processes, dynamic mechanism, differentiated development models, rural planning technology systems, strategies and policies for rural development, and the impacts of globalization on China's rural restructuring in the future. Finally, focusing on a series of problems in the implementation of some important government intervention policies, which is aimed at boosting the social and economic development of rural areas in recent years, a critical analysis and discussion is carried out.

快速城镇化进程驱动中国乡村地域发生巨大变化。乡村重构,即为适应乡村内部要素和外部调控的变化,通过优化配置和有效管理影响乡村发展的物质和非物质要素,重构乡村社会经济形态和优化地域空间格局,以实现乡村地域系统内部结构优化、功能提升以及城乡地域系统之间结构协调、功能互补的过程。本文在界定乡村重构的概念内涵,构建基于“要素—结构—功能”演变助推乡村重构的理论框架基础上,从空间重构、经济重构、社会重构视角探讨了乡村重构的实现路径,并着眼于服务当前国家重大战略需求和解决城乡转型发展进程中乡村地域系统面临的现实困境,提出了未来中国乡村重构研究需重点关注的内容。最后,就现有旨在促进乡村社会经济发展的重大引导性战略和政府干预性政策及其在实践操作中引发的一系列问题,展开批判性分析和讨论。

Governance has become an important theoretical and practical issue of multi-disciplinary concern. In the context of rapid urbanization and wide rural-urban disparity, rural-urban governance is particularly important for China. Based on the Chinese and international governance theories, the key aspects of governance include: an open system, self-organization, and the interactive relationship between power and rights. Internationally the research frontier focuses on the governance of social-ecological systems, while urban governance has grown significantly, and rural governance has also risen in recent years. The research trend and policy evolution of governance in China indicate that China has undergone a comprehensive transformation from management to governance by top-level design, and rural-urban governance is becoming a key issue. The main path of China's rural-urban governance in the future lies in three aspects. First, it is necessary to shift from power-oriented to rights-oriented governance. Second, equal attention needs to be paid to both ecological environment and social governance instead of focusing only on social, single-dimensional, and urban governance systems, and form a rural-urban co-governance system with the participation of multiple subjects. Third, it should be launched to assist rural and urban vulnerable groups actively. Rural-urban co-governance will become a new growth point for theories, and multi-disciplinary, multi-subject, and multi-department collaboration is much needed.

治理已经成为多学科关注的重要理论与现实问题。在快速城镇化和城乡差距居高不下的背景下,城乡治理对中国而言尤为重要。论文通过梳理国内外治理理论,概括治理的要点为开放系统、自组织、权力与权利的交织3个方面。国际研究强调社会生态系统的治理,城市治理增势显著,乡村治理研究开始兴起。中国在顶层设计上经历了从管理到治理的全面转型,城乡治理逐渐成为研究和政策实践的关键议题。未来中国城乡治理的主要路径在于：从权力导向转向权利导向;从只注重社会维度、一元化的、城市偏向的治理模式转向生态环境与社会治理并重,形成多元主体参与的城乡共治体系;积极开展城乡弱势群体的扶持救助工作。城乡共治将会成为新的理论增长点,需要进行多学科、多主体、多部门的协同工作。

The spatial location of the urban-rural interface (URI) is at the junction of urban and rural areas. In function, URI is the spatial carrier of communication for urban and rural elements. The development of URI is of great significance to the coordination of urban and rural areas. First, from the perspective of elements flow, this research established a theoretical framework of URI, which is based on system dynamics, to extend the urban and rural system to a three-body framework: urban area-URI-rural area. In this framework, the structure of urban and rural system is composed of three subsystems including urban system, URI system and rural system. And among them, URI system has its unique structure and function. From this meaning, URI consists of three parts including boundary wall, interface and boundary gate. For its function, it mainly plays the role of defense and exchange in the urban and rural system. The formation mechanism of URI reflects the forces of urban and rural systems to URI, and the interaction mechanism reflects the reaction of URI to urban and rural systems. Second, on the basis of the theoretical model, we built a quantitative model to characterize the dynamic evolution mechanism of URI by using methods of quantitative geography. The model solution shows that: (1) In different stages of development, URI is affected by these different degrees of endogenous and exogenous dynamic power. In early stage of URI's formation, the development power is mainly derived from endogenous dynamics. With the development of URI, exogenous dynamics increased gradually, and functioned with endogenous dynamics. Moreover, the gap between two dynamics is narrowed and the development of URI is accelerated. After URI achieves the equilibrium, exogenous dynamics reduce gradually and endogenous dynamics become the main driving force. (2) With the development of URI, the effects transited from negative to positive. The value of effects depends on the cyclic accumulation capacity of URI itself. In early stage of URI's formation, the ability of cyclic accumulation is weak, so the effect of URI is minor, and may even be negative. With the increasing ability of the cyclic accumulation, the negative effect transfer to positive one and increase gradually. (3) The balancing condition of URI is mutually affected by the exchange rate, endogenous dynamics and cyclic accumulation ability of urban-rural elements. The equilibrium of a certain URI is stable and has spatial scale effects. According to the research on the stochastic dynamic model, we found that the random noise term would influence the speed of equilibrium state of certain URI, instead of the equilibrium state itself, which proved the argument that the equilibrium state of a certain URI is stable. Equilibrium solutions of the dynamic model further characterize that its equilibrium state is not exactly equal at different spatial scales. (4) The switch model depicts the function of boundary gate, and the interface equilibrium is the critical point to decide whether we switch the gate open or closed. When the boundary gate is open or closed depends on whether URI reaches the critical value of its equilibrium state. According to the above conclusions, the paper puts forward policy recommendations respectively from temporal and spatial scales. From the temporal perspective, because of the impetus, the effect of URI and the role of boundary gate are different in different development stages of URI, we should take discretionary measures. From the spatial perspective, the equilibrium of URI is different at different spatial scales, so different development policies should be implemented at different spatial scales of URI.

城乡界面在地域上处于城市和乡村交界处,在功能上起到城乡要素交流的空间载体作用,其发展对城乡协调意义重大。基于系统动力学,从要素流的角度构建城乡界面的理论框架,通过构建数量模型来刻画城乡界面动态演化机制。模型求解结果显示：① 在不同发展阶段,城乡界面受到内生动力和外生动力不同程度的影响。② 随着城乡界面的发展,其效应由负效应向正效应过渡,效应大小取决于其循环积累能力大小。③ 平衡态受城乡要素交换率、自身内生动力和循环积累能力的共同影响;城乡界面的平衡态是恒定的,但具有空间尺度效应。④ 开关模型刻画了界门对城市系统和乡村系统的作用机制。据此,分别从时间尺度和空间尺度对中国城乡系统的发展提出政策建议。

共同富裕是社会主义的本质要求，但当前我国发展不平衡不充分问题仍然突出，区域间、城乡间的经济发展及居民收入差距依然较大，如何在高质量发展中促进共同富裕成为新发展阶段的重要目标。国际和国内经验显示，在构建统一大市场的进程中，经济活动和人口将不断向少数地区集聚，这是经济发展的客观趋势，也将促使地区间的人均差距不断缩小，从而走上“在集聚中走向平衡”的共同富裕之路。在空间政治经济学的统一框架下，如果不畅通统一大市场，则有可能导致欠发达地区对转移支付的过度依赖或者地方政府债务问题，即使在短期内能缩小地区差距，但将带来整个国家经济效率的巨大损失，反而不利于实现共同富裕。面向未来，中国需要进一步打破商品和要素流动的体制和观念障碍，不断推进和完善统一大市场，最终实现在高质量发展中促进共同富裕的目标。