源于遥感生态指数的郑州市生态质量评价  

Ecological Quality Evaluation of Zhengzhou City Based on Remote Sensing Ecological Index

作　　者：杨保东 吴立 骆磊 胡晓思 YANG Baodong;WU Li;LUO Lei;HU Xiaosi(Provincial Key Laboratory of Earth Surface Processes and Regional Response in the Yangtze-Huaihe River Basin,School of Geography and Tourism,Anhui Normal University,Wuhu 241002,China;Institute of Aerospace Information Innovation,Chinese Academy of Sciences,Beijing 100094,China)

机构地区：[1]安徽师范大学地理与旅游学院江淮流域地表过程与区域响应安徽省重点实验室,安徽芜湖241002 [2]中国科学院空天信息创新研究院,北京100094

出　　处：《地理空间信息》2024年第10期50-54,共5页Geospatial Information

基　　金：国家自然科学基金面上项目(41771221)。

摘　　要：生态环境质量评价对城市发展规划有着重要指导意义。选取2004、2009年LandsatTM影像和2015、2021年LandsatOLI影像,基于遥感生态指数对郑州市生态环境质量进行评价。研究结果表明:遥感生态指数(RESI)能够客观反映郑州市生态环境质量,在2004—2021年间郑州市生态退化严重,RESI均值由0.54下降到0.44,退化总面积为4934.05 km^(2),占比高达67%;从空间分布上看,郑州市中牟县地区及4个主城区(中原区、金水区、二七区、管城回族区)生态质量有较为明显的改善,东部地区生态退化严重;绿度和湿度对遥感生态指数起正向作用,热度和干度对遥感生态指数起反向作用;利用地理探测器对绿度、湿度、干度、热度分析影响生态环境的主导因素发现4个指标因子对RESI的解释力都很显著,绿度和热度是影响研究区生态环境变化的主导因素。Ecological environment quality evaluation has important guiding significance for urban development planning.In this paper,we selected Landsat TM images in 2004 and 2009 and Landsat OLI images in 2015 and 2021 to evaluate the ecological environment quality of Zhengzhou based on remote sensing ecological index(RESI).The result shows that RESI can objectively reflect the ecological environment quality of Zhengzhou City.From 2004 to 2021,the ecological degradation of Zhengzhou City was serious,and the mean value of RESI decreased from 0.54 to 0.44.The total degraded area was 4934.05 km²,accounting for 67%.From the perspective of spatial distribution,the ecological qualities of Zhongmou County and the four main urban areas(Zhongyuan District,Jinshui District,Erqi District,Guancheng Hui Nationality District)have been improved obviously,while the ecological degradation is serious in the eastern part of Zhengzhou.Greenness and humidity have positive effects on RESI,while heat and dryness have negative effects on RESI.Based on the analysis of leading factors affecting the ecological environment of greenness,humidity,dryness and heat by geographical detector,it is found that the four index factors have significant explanatory power to RESI,and greenness and heat are the leading factors affecting the change of ecological environment in the study area.

关 键 词：遥感生态指数 生态环境变化 地理探测器 郑州市 

分 类 号：P237[天文地球—摄影测量与遥感]