Content of Man-land Relationship in our journal

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  • Man-land Relationship
    CUI Xuegang,FANG Chuanglin,LIU Haimeng,LIU Xiaofei,LI Yonghong
    Acta Geographica Sinica. 2019, 74(6): 1079-1096. https://doi.org/10.11821/dlxb201906002
    CSCD(2)

    At present, urbanization and eco-environment coupling has become a research hotspot. Owing to the complexity of the coupling mechanism, as well as the limitation of mathematical statistics methods, the process simulation of urbanization and eco-environment coupling needs to be strengthened. Based on the systems science and cross-scale coupling theory, we can define the coupled urbanization and eco-environment system as a nonlinear open system with multiple feedbacks. Based on the above analysis, the progress of dynamic simulation for urbanization and eco-environment coupling is reviewed. (1) As dynamic simulation has become a trend, the relevant analysis of theory and mechanism is being improved. (2) Dynamic simulation technologies have shown a trend of diversified, refined, intelligent and integrated pattern. (3) The simulation application mainly focuses on three aspects, including multiple-case regions, multiple elements, local coupling and telecoupling, and regional synergy. In addition, we found some shortcomings. (1) The development and integration of basic theories are insufficient. (2) The method integration and data sharing is lagging. (3) The coupling relational chains and dynamic characteristics of the main control elements are not fully revealed. Besides, telecoupling simulation is not quantified and systematically integrated, and could not be effectively applied to spatial synergy. In future, we should promote the intersection of research networks, technology integration and data sharing, and then uncover the evolution process of coupling relational chains and the main control elements in urban agglomerations. Finally, we should build decision-making support systems for regional sustainable urbanization.

  • Man-land Relationship
    YANG Yu,LI Xiaoyun,DONG Wen,HONG Hui,HE Ze,JIN Fengjun,LIU Yi
    Acta Geographica Sinica. 2019, 74(6): 1063-1078. https://doi.org/10.11821/dlxb201906001
    CSCD(5)

    Relationship is a classic concern of geographical research, which is also a research field where China's human and economic geography has made notable contributions to international geographical research. The connotation of man-land relationship changes constantly during its dynamic evolution process. Therefore, a scientific evaluation on the status of modern man-land relationship in China is the basis for an accurate understanding of it with which paths of coordinating conflicts between man and land can be sought. Based on the territorial system theory of man-land relationship and a review of the new characteristics of modern man-land relationship in China, this study constructs a theoretical framework to make a comprehensive evaluation on man-land relations using the following four indicators: intensity of human activities, carrying capacity of core resources, ecological and environmental constraints, and openness of man-land system. Counties are taken as the basic spatial units in the evaluation. The following results are found: there are apparent differences between eastern and western China in terms of intensity of human activities and the distribution pattern of it follows the layout of core urban agglomerations; the carrying capacities of core resources take on a relatively dispersed spatial distribution; there is a high level of spatial mismatch between land, water, core energy resources, and the intensity of human activities, which intensifies the tension of regional man-land relationship; areas with strong ecological and environmental constrains are concentrated on both sides of the Heihe-Tengchong Line (also known as the Hu Huanyong Line) and in the southwestern part of the Qinghai-Tibet Plateau; overall, the level of openness of China's man-land system is not high, with relatively open areas mainly concentrated in economically developed regions. The evaluation results show that about 86% of the regions in China are faced an unstrained man-land relationship, but noticeable man-land conflicts are found in some areas, particularly in southeastern coastal areas. In the western region of China, man-land relationship is relatively unstrained though the level of man-land system evolution is low.