Influence mechanism of cultivated land fragmentation on sustainable intensification and its governance framework
Received date: 2022-04-25
Revised date: 2022-10-20
Online published: 2022-12-27
Supported by
Natural Science Foundation of Jiangsu Province(BK20210192)
Open Fund of Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resource(2021CZEPK09)
Shuangchuang Project of Jiangsu Province(JSSCBS20210024)
National Natural Science Foundation of China(41971234)
National Natural Science Foundation of China(41971235)
Major Program of National Social Science Foundation of China(19ZDA096)
Scientifically regulating cultivated land fragmentation (CLF) to make sustainable intensification conducive to and adaptive to the local contexts is the goal of long-term efforts in the research and practice of CLF governance. Starting from the theoretical connotation of CLF and sustainable intensification of cultivated land use (SICLS), this study analyzed the theoretical mechanism of CLF affecting SICLS, and then attempted to construct a sustainable intensification-oriented CLF governance framework from the coupling perspective of "feature-influence-environment", and systematically discussed key issues, scenario decision-making mechanisms, spatial scale effects and operating mechanisms in CLF governance. The results show that: (1) CLF is a composite system covering multi-dimensional attributes such as resources, space, utilization and ownership, which has extensive and complex impacts on resource utilization, agricultural production, and landscape ecology, etc. CLF has become the core factor affecting SICLS through action pathways such as multi-scale and omni-direction, difference and uncertainty, and interaction. (2) The situation and extent to which CLF becomes a problem or a benefit depends on its impacts, the local contexts of physical geography, agroecology, social economy, etc., and the orientation of agricultural development. (3) The CLF comprehensive governance framework from the perspective of "feature-influence-environment" deconstructs five key issues, two relationships, two tendencies and three-level spatial scale interconnection mechanisms in complex CLF scenarios. This framework can provide new ideas for scientifically judging the governance orientation of CLF and optimizing the governance model, which is beneficial to improving the governance system of CLF and promoting the SICLS.
LIU Jing , JIN Xiaobin , XU Weiyi , ZHOU Yinkang . Influence mechanism of cultivated land fragmentation on sustainable intensification and its governance framework[J]. Acta Geographica Sinica, 2022 , 77(11) : 2703 -2720 . DOI: 10.11821/dlxb202211002
图7 2019年中国耕地景观细碎空间分异格局注:基于自然资源部标准地图服务网站GS(2016)1549号标准地图制作;以2.1节耕地细碎化多维属性特征解析为基础,从资源规模、空间集聚、生产利用等方面构建耕地景观细碎评价指标体系;基于2019年中国30 m土地覆盖数据[16],以耕地图斑为计算对象,将计算结果在县域尺度进行统计、汇总与可视化。其中,资源规模维度集成了耕地规模、平均斑块面积、斑块密度等指标;空间集聚维度整合了斑块邻近度、离散性、分割度等;生产利用维度整合了斑块形状规整性、紧凑性等。 Fig. 7 Spatial differentiation of farmland landscape fragmentation in China in 2019 |
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