干旱区地理2024，Vol.47Issue(7)：1210-1219,10.DOI:10.12118/j.issn.1000-6060.2023.604
中国西北地区农业生态效率时空分异及影响因素研究
Spatial and temporal differentiation and influencing factors of agricultural ecological efficiency in northwest China
摘要
Abstract
Improving agricultural eco-efficiency based on resource endowment and development stage is the only means to build a strong agricultural country.Based on the measurement of agricultural eco-efficiency at the city scale in northwest China from 2010 to 2020 using the non-expectation nonradial SE-SBM model,the spatial and temporal differentiation characteristics and influencing factors were analyzed using the indices and methods of difference coefficient,Dagum Gini coefficient,global trend analysis,spatial autocorrelation,and spatial error model.The results indicate the following:(1)The median of agricultural eco-efficiency in northwest China in-creased from 0.512 to 1.001,with an average annual growth rate of approximately 6.93%;however,the differ-ence in agricultural eco-efficiency between cities showed a narrowing trend.(2)The spatial distribution of agricul-tural eco-efficiency in northwest China shows hierarchical spatial distribution characteristics.The projection trend line shows a"U-shaped"feature in the north-south direction,whereas the east-west direction gradually shows an"inverted U-shaped"feature in the process of smooth rise from west to east.(3)The results of the spatial error model show that the per workforce arable land area,per capita disposable income of rural residents,and urbaniza-tion level positively influence the agricultural eco-efficiency in the northwest China,whereas the agricultural ma-chinery density and fertilizer use intensity negatively influence the agricultural eco-efficiency in the region.关键词
农业生态效率/SE-SBM模型/空间误差模型/中国西北地区Key words
agricultural ecological efficiency/SE-SBM model/spatial error model/northwest China引用本文复制引用
朱瑷嫒,殷颂葵,刘琼慧..中国西北地区农业生态效率时空分异及影响因素研究[J].干旱区地理,2024,47(7):1210-1219,10.基金项目
国家社会科学基金项目(19BJY056)资助 （19BJY056）
