JOURNAL OF NATURAL RESOURCES ›› 2021, Vol. 36 ›› Issue (3): 688-701.doi: 10.31497/zrzyxb.20210312

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The evolution of cultivated land utilization efficiency and its influencing factors in Nanyang Basin

JI Zheng-xin1,2,3(), WANG Xiu-li1,2(), LI Ling1,2, GUAN Xiao-ke4, YU Lin1,2, XU Yue-qing3   

  1. 1. College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, China
    2. Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450002, China
    3. College of Land Science and Technology, China Agricultural University, Beijing 100193, China
    4. Social Development Research Center, Zhengzhou University of Light Industry, Zhengzhou 450002, China
  • Received:2019-07-03 Revised:2020-01-13 Online:2021-03-28 Published:2021-05-28
  • Contact: WANG Xiu-li E-mail:jizhengxin1997@163.com;wangxiuli0614@163.com

Abstract:

Studying the evolution law of cultivated land utilization efficiency is related to agricultural industry revitalization and national food security. This paper, which is based on the calculation of cultivated land utilization efficiency of 12 counties in Nanyang Basin over the 2000, 2010 and 2016 with the DEA-GWR model, investigates characteristics of spatiotemporal evolution of cultivated land utilization efficiency by using trend surface analysis and $G^{*}_{i}$ index and analyzes its influencing factors. The results show that: (1) In 2000, 2010 and 2016, the comprehensive efficiency was on the rise. In 2000 and 2016, the scale efficiency had a greater effect on the comprehensive efficiency. In 2010, the pure technical efficiency had more effect on the comprehensive efficiency. (2) From a global perspective, the high-value areas with comprehensive utilization efficiency of cultivated land changed from the southeast to the middle and northwest in three periods, showing obvious regional differentiation; from a local perspective, relatively high value (low value) areas with comprehensive utilization efficiency of cultivated land show a strong cluster-like agglomeration in space. (3) According to the factors influencing cultivated land utilization efficiency, the absolute value of degree of influence is listed in the order: agricultural labor>multiple cropping index>total power of agricultural machinery>fertilizer application amount>per capita cultivated land>topographical conditions>per capita disposable income of rural residents>urbanization level.

Key words: cultivated land utilization efficiency, spatiotemporal evolution, DEA-GWR model, influencing factor, Nanyang Basin