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Arid Land Geography ›› 2024, Vol. 47 ›› Issue (7): 1210-1219.doi: 10.12118/j.issn.1000-6060.2023.604

• Regional Development • Previous Articles     Next Articles

Spatial and temporal differentiation and influencing factors of agricultural ecological efficiency in northwest China

ZHU Aiai(), YIN Songkui(), LIU Qionghui   

  1. School of Finance and Economics, Qinghai University, Xining 810016, Qinghai, China
  • Received:2023-10-24 Revised:2024-01-05 Online:2024-07-25 Published:2024-07-30
  • Contact: YIN Songkui E-mail:m17689315403@163.com;yinsongkui@163.com

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 increased from 0.512 to 1.001, with an average annual growth rate of approximately 6.93%; however, the difference in agricultural eco-efficiency between cities showed a narrowing trend. (2) The spatial distribution of agricultural 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 urbanization level positively influence the agricultural eco-efficiency in the northwest China, whereas the agricultural machinery density and fertilizer use intensity negatively influence the agricultural eco-efficiency in the region.

Key words: agricultural ecological efficiency, SE-SBM model, spatial error model, northwest China