关键词: 土地绿色利用效率, 时空演变, 重心, 空间相关性, 影响因素, 空间自回归模型, 地理探测器, 中部六省

Abstract:

After the Chinese government put forward the Rise of Central China Plan, it rapidly facilitates the economy development of Henan province, Hubei province, Hunan province, Jiangxi province, Anhui province and Shanxi province which has gradually become the fourth growth pole driving national economic growth, has caused the built-up area to expand and arable land to decrease, which not only threaten food security, but also impose resource and environmental constraints. In the context, based on the panel data of 80 prefecture-level cities in six provinces of central China from 2007 to 2018, this paper analyzes the green-efficiency of land use and its evolution, the trajectory of gravity center change, influencing factors of green-efficiency of land use and its influence degree applying Malmquist-Luerberger index, gravity center model, spatial econometric regression model and geographical detector model. The results show that ① the green-efficiency of land use and technological progress in the six provinces of central China from 2007 to 2018 fluctuated frequently and their change pace was basically the same, while the technological efficiency was relatively stable, indicating the green-efficiency of land use was “single-track” driven by technological progress. ② The green-efficiency of urban land use showed obvious spatial differentiation characteristics, and the center of gravity generally moved to the northeast part of Central China. ③ It showed spatial dependence and spatial spillover effects on the green-efficiency of land use at the provincial level and prefecture level, the green-efficiency of land use among the prefecture-level cities is mainly in the high-high and low-low level. ④ In addition to the area of urban construction land, urbanization rate, the advanced level of industrial structure, the level of economic development, and the amount of foreign direct investment all positively affect the green-efficiency of land use in 80 prefecture-level cities of six central provinces. Among them, the influence degree of various factors on the green-efficiency of land use from strong to weak, in order, is the advanced level of industrial structure, the amount of foreign direct investment, the area of urban construction land, the urbanization rate and the level of economic development.

Key words: green land use efficiency, temporal and spatial evolution, center of gravity, spatial correlation, influencing factors, spatial autoregressive model, geographical detector, six provinces in central China