Journal of Ecology and Rural Environment ›› 2022, Vol. 38 ›› Issue (11): 1396-1405.doi: 10.19741/j.issn.1673-4831.2021.0772

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Measurements, Spatial Spillover and Influencing Factors of Agricultural Eco-efficiency in Henan Province

YAN Ming-tao, QIAO Jia-jun, QU Meng, HAN Dong   

  1. College of Geography and Environmental Science, Henan University/ Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Ministry of Education, Kaifeng 475004, China
  • Received:2021-12-08 Online:2022-11-25 Published:2022-11-23

Abstract: Scientific analysis of the temporal and spatial evolution and impact mechanism of agricultural eco-efficiency has important theoretical and practical significance for achieving sustainable agricultural development and formulating related policies. Taking generalized agriculture as the research object, the super-SBM model was used to measure the agricultural eco-efficiency of 104 districts and counties in Henan Province from 1995 to 2019. The Spatial Durbin Model was used to explore the spillover effects of influencing factors, and the geographic detector was used to analyze its spatial stratification heterogeneity. The results reveal that: (1) The agricultural eco-efficiency of Henan Province showed a step-shaped oscillating downward change trend, and spatially showed agglomeration and heterogeneity. (2) Farmers' income level, per capita sown area and planting structure have a positive and direct effects on the agricultural eco-efficiency of the region; the urbanization rate and agricultural machinery density have a negative direct effects on the agricultural eco-efficiency of the region; Farmers' income level has a significant positive spatial spillover effect on agricultural eco-efficiency in adjacent areas; urbanization rate, fertilizer use intensity and agricultural machinery density have negative spatial spillover effects on agricultural eco-efficiency in adjacent areas. (3) The highly influential factors of agricultural eco-efficiency have been transformed from agricultural resource factors to social and economic factors, and the influence of interaction term is greater than that of a single variable. Based on the given research results, it is suggested that agricultural policies should be formulated with pragmatic attention of the spatial spillover effect and spatial heterogeneity of agricultural eco-efficiency, the exchange and collaboration of resource factors between regions should be strengthened, and characteristic agriculture should be developed with their endowments.

Key words: agricultural eco-efficiency, super-SBM model, spatial Durbin model, Geodetector

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