By constructing an evaluation system for water resource conservation and intensification level in the Yellow River Basin,this study examines the regional variation,spatiotemporal evolution and convergence of water resource conservation and intensification level in the Yellow River Basin.Specifically,taking the nine provinces along the Yellow River from 2011 to 2020 as the research object,the entropy weight method was used to measure the level of water resource conservation and intensification in the Yellow River Basin.The Theil index method and Kernel density estimation were used to analyze the spatiotemporal differences in the level of water resource conservation and intensification in the basin,and the spatial Durbin model and β convergence model were used to test their influencing factors and spillover effects.The results indicate that:1)During the study period,the level of water resource conservation and intensification in the Yellow River Basin is on the rise,but with obvious characteristics of regional heterogeneity and time phases.2)There are obvious regional variations in the level of water resource conservation and intensification in the Yellow River Basin,and the main source of the variations is the inter-regional differences.3)The overall distribution curve of water resource conservation and intensification level in the basin have evolved from double peaks to triple peaks,with an enhanced polarization phenomenon.4)There is a significant β convergence process in the research object,and the regional economic level,technological innovation,and population density are the important factors.The implementation of water rights system has had a policy causal effect on the improvement of water resource conservation and intensification.This paper provides data support and quantitative basis for promoting ecological protection and high-quality development in the Yellow River Basin.
关键词
水资源节约集约/统计测度/时空差异/动态演进/收敛性/政策因果效应
Key words
conservation and intensification of water resource/statistical measurement/spatiotemporal variation/dynamic evolution/convergence/policy causal effects
维普
万方数据