成渝城市群生态环境承载力评价及其驱动因素研究

Evaluation of eco-environmental carrying capacity and its driving factors in Chengdu-Chongqing urban agglomeration

基于PSR模型构建生态环境承载力评价指标体系,对成渝城市群1995—2018年生态环境承载力进行时空分析,并识别其驱动因素。结果表明:成渝城市群生态环境承载力呈上升趋势,其中状态层和响应层提升明显;各城市间承载力差异较大,但均在2006—2018年增速最高;随着生态环境承载力的提高,其主导驱动因素由人口资源压力转变为产业结构和社会建设。

Based on the PSR model,an evaluation index system for ecological environment carrying capacity was constructed to analyze the temporal and spatial trends of ecological environment carrying capacity in Chengdu-Chongqing urban agglomeration from 1995 to 2018,and to identify its driving factors.The results showed that the ecological environment carrying capacity exhibited an increasing trend,particularly in the state layer and response layer.Although there were significant differences in carrying capacity among cities,they all showed their highest growth rates from 2006 to 2018.With the improvement of ecological environmental carrying capacity,the dominant driving factors shifted from population-resource pressures to industrial structure and social development.