Evaluation of synergistic performance of watershed land utilization in Jialing River of Sichuan Province in the context of spatial governance
[Objective]The development and protection of resources in the Yangtze River Basin is a strategic issue concerning China's overall situation.Therefore,it is of great significance to study watershed land use in its main tributaries in the context of spatial governance.[Method]This study took the Jialing River in Sichuan Province as an example and utilized the theoretical framework of spatial governance and synergistic land use in watersheds.A coordination degree model was constructed to assess the synergistic performance of land use within the Jialing River watershed in Sichuan Province.[Result]In the context of spatial governance,synergistic land use in watersheds should prioritize the coordination between economic development and ecological protection.Attention should be given to optimizing the land use structure within the watershed,thus establishing a coordinated"economic,ecological"factor system for land resources and promoting sustainable land use.The study of the Jialing River in Sichuan Province revealed that the land use coordination index for the Jialing River basin in 2011 and 2020 was 0.815 8 and 0.815 6,respectively,indicating minimal overall change and weak synergistic performance in land use within the watershed.Al-though there was a noticeable increase in economic efficiency and ecological quality of land use in the Jialing River watershed,the organized allocation of land use structures was insufficient,resulting in significant spa-tial and internal disparities within the basin.Thus,there is a need to enhance the synergy of spatial gover-nance in terms of economic efficiency,ecological quality,and structural allocation of land use within the Ji-aling River watershed.Future efforts should focus on optimizing the spatial land use structure within the wa-tershed.[Conclusion]Based on the findings,comprehensive measures and suggestions are proposed.These include coordinating the spatial pattern of land use within the watershed to optimize the distribution of land use structures,strengthening control over the"five quantities"of watershed land to ensure effective land pro-tection,and establishing an early warning system and control mechanism for watershed land to ensure the se-curity of land use within the watershed.
spatial governanceland synergistic useperformance evaluationcountermeasuresJialing River BasinSichuan Province