城市热环境对城市生态系统服务功能时空变化的响应——以成都市为例

文章以成都市为例,通过协同分析法利用皮尔逊相关性指数及双变量局部空间莫兰指数分析城市热环境对生态系统服务功能时空变化的响应情况。结果表明:成都城市热环境的递增趋势显著,整体市域温度在2000—2015年的研究期限内上升1.0℃~2.0℃;成都市热环境对7项生态系统服务功能具有明显的负响应情况,其响应机制分为3类,即直接影响、间接影响以及连带影响;成都城市热环境对生态系统服务响应显著性空间呈"东-中-西"区域化分布。在此基础上,文章提出了成都市热环境优化规划途径。

Response of Urban Thermal Environment to Spatial and Temporal Changes of Urban Ecosystem Services:A Case Study of Chengdu City

This study takes Chengdu City as an example and adopts the collaborative analysis to analyze the response of urban thermal environment to the temporal and spatial changes of ecosystem services using Pearson correlation index and bivariate local spatial Moran index.The results show that the urban thermal environment in Chengdu indicates a significant increasing trend,with the overall urban temperature rise of 1.0℃~2.0℃during the study period from 2000 to 2015.Chengdu urban thermal environment has obvious negative response to 7 ecosystem services,and the response mechanism can be divided into three types,including direct,indirect and joint effects.The urban thermal environment response to ecosystem services in Chengdu presents a spatially significant distribution of“east districts-central districts-west districts”.Based on the analysis,the optimal planning approach for urban thermal environment in Chengdu is proposed.