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[1]Yin Ke,Ren Simin.Spatiotemporal differentiation and driving mechanisms of green transformation of cultivated land in Three Gorges Reservoir Area[J].Research of Soil and Water Conservation,2025,32(06):381-390,402.[doi:10.13869/j.cnki.rswc.2025.06.007]

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Spatiotemporal differentiation and driving mechanisms of green transformation of cultivated land in Three Gorges Reservoir Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 32 Number of periods: 2025 06 Page number: 381-390,402 Column: Public date: 2025-10-20

Title:: Spatiotemporal differentiation and driving mechanisms of green transformation of cultivated land in Three Gorges Reservoir Area

Author(s):: Yin Ke,Ren Simin; (School of Geography and Tourism,Chongqing Normal University,Chongqing 401331,China)

Keywords:: ecologically fragile zone; green transformation of cultivated land; multi-scale drivers; Three Gorges Reservoir Area

CLC:: S718.5

DOI:: 10.13869/j.cnki.rswc.2025.06.007

Abstract:: [Objective] This study aims to investigate the spatiotemporal evolution patterns and their driving mechanisms of green transformation of cultivated land use in the Three Gorges Reservoir Area, a typical ecologically fragile zone, thereby providing scientific support for sustainable utilization of regional cultivated land resources and eco-economic coordinated development. [Methods] Utilizing multi-source data(2007—2021) of land use, socioeconomic statistics, and geographical environment, an evaluation indicator system integrating three dimensions of “space-function-mode” was developed. The entropy method was employed to measure the green transformation levels of cultivated land, and a spatiotemporal dual-fixed-effect Spatial Durbin Model was applied to analyze local effects and spatial spillover effects. [Results] (1) Socioeconomic dominance： GDP per capita (total effect： 0.863) and the proportion of agricultural production value(total effect： 0.723) significantly drove the transformation through cross-regional synergy, while fixed-asset investments only had local effects(direct effect： 0.103). (2) Asymmetric spatial spillover： adjacent urbanization promoted local transformation through labor redistribution(indirect effect： 0.410), but increased adjacent population density triggered “siphon effects”(indirect effect： -0.199). Additionally, premium locations(near urban centers/rivers) demonstrated competitive suppression (indirect effects：-0.466, -0.376). (3) Strong topographic constraints： slope and elevation significantly hindered transformation in 62% of the study area(total effects：-0.654, -0.731), limiting mechanization and large-scale operations. [Conclusion] Green transformation of cultivated land in ecologically fragile zones should adopt a “differentiated coordination” approach forming cross-regional agricultural economic alliances to enhance spatial synergy between GDP per capita and agricultural output； prioritizing high-standard cultivated land development in flat areas(slope<15°)； and implementing ecological compensation with cross-regional cultivated land quota trading in areas with complex terrains.

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Last Update: 2025-12-10