Dynamic Evolution of Agricultural Ecological Efficiency in Sichuan Province under Dual-carbon Background
Based on the panel data of 21 cities(prefectures)in Sichuan Province from 2015 to 2021,this paper adopted the super-efficiency SBM model with non-expected output to measure agricultural eco-efficiency,and comprehensively applied global autocorrelation analysis to analyze the spatiotemporal evolution characteristics of agricultural eco-efficiency in Sichuan Province.The results show that:(1)The agricultural eco-efficiency in Sichuan Province shows a stable rising trend after fluctuation.The five major economic zones have obvious classification characteristics,which are Northwest Sichuan Ecological Demonstration Zone>Panxi Economic Zone>Southern Sichuan Economic Zone>Chengdu Plain Economic Zone>Northeast Sichuan Economic Zone.(2)The cities(prefectures)in Sichuan Province have strong spatial heterogeneity and imbalance,and the spatial pattern presents the distribution characteristics of"high in the east and west and low in the east".(3)The agricultural eco-efficiency in Sichuan Province has a positive spatial correlation and a trend of gradually strengthening spatial agglomeration,showing a spatial pattern of HH agglomeration and LL agglomeration.Therefore,this paper puts forward suggestions from the aspects of optimizing agricultural planting and industrial structure,coordinating the joint effect of efficiency progress and technological progress,promoting regional linkage by growth poles,and exploring the different characteristics of the five economic zones to develop special agriculture,so as to promote the low-carbon agriculture and high-quality agricultural development in Sichuan Province.
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