空间视角下湖北省环境绩效评估及影响因素分析

以湖北省为例，基于压力-状态-响应（PSR）模型构建环境绩效评估指标体系，运用空间自相关和标准差椭圆对湖北省各地区绩效指数空间特征及影响因素进行探讨，结果显示：湖北省各地区环境绩效指数（EPI）均高于60，但普遍处于中等水平，良好及优秀所占比例低.EPI较高的地区主要位于湖北省西部和中部，压力和状态指数从西至东递减，响应指数则呈现东部高于西部高于中部的态势.状态指标绩效指数在空间上显著正相关，即环境质量状况较好（或较差）的地区在空间上集聚.EPI及二级指标绩效指数均以西北-东南为布局方向，且EPI椭圆重心较于基准重心偏向于西南方向.各地区环境指数除受到资源禀赋的影响外，还与城镇化率和人口密度显著相关.

Environmental performance evaluation and influencing factors analysis of Hubei Province from a spatial perspective

Taking Hubei province as an example, a system of environmental performance evaluation indicators was constructed based on the pressure-status-response (PSR) model, and spatial autocorrelation and standard deviation ellipsoid method were used to explore the spatial pattern characteristics and influencing factors of performance indexes in various regions of Hubei Province. The results showed that the environmental performance indexes (EPIs) of all regions investigated in Hubei Province were higher than 60, but those were generally at a medium level and the proportion of good and excellent was low. The regions with higher EPI were mainly located in the western and central parts of Hubei Province. The pressure and status indexes decreased from west to east, and the response indexes in eastern part were higher than those in western and central parts. The status indexes had a significant positive correlation in space, which meant that areas with better (or worse) environmental quality gather in space. The EPIs and the second-level indexes took the northwest-southeast as the layout direction, and the EPI elliptical center of gravity was biased toward the southwest direction compared with the benchmark center of gravity. In addition to being influenced by resource endowments, regional environmental indexes were also significantly related to urbanization rates and population density.