摘要
采用SBM-DDF模型测算广东省生态文明建设效率,并根据模型的拓展分析效率损失的原因,进而运用核密度估计法研究广东省生态文明建设效率的时间演化趋势及差异性。研究结果表明:广东省大部分地区生态文明建设效率呈现下降趋势;污染物排放是生态文明建设效率损失的主要原因;2018—2021年核密度图出现“双峰”现象,生态文明建设效率出现两极分化现象。
The SBM-DDF model is used to calculate the ecological civilization construction effi-ciency in Guangdong Province,and based on the expansion of the model,the reasons for efficien-cy loss are analyzed.Furthermore,the kernel density estimation method is applied to analyze the temporal evolution trend and heterogeneity of ecological civilization construction efficiency in Guangdong Province.The research results show that the ecological civilization construction effi-ciency in most areas of Guangdong Province is declining.Pollutant discharge is the main cause of efficiency loss in ecological civilization construction.From 2018 to 2021,the kernel density plot shows a"bimodal"phenomenon,indicating a polarization of ecological civilization construction efficiency.
作者
赵燕娜
张家俊
Zhao Yanna;Zhang Jiajun(School of Urban Geology and Engineering,Hebei GEO University,Shijiazhuang Hebei 050031,China)
出处
《河北环境工程学院学报》
CAS
2023年第4期51-57,共7页
Journal of Hebei University of Environmental Engineering
