基于遥感生态指数的合肥市生态环境动态变化监测分析  

Monitoring and analysis of dynamic changes of ecological environment in Hefei City based on the remote sensing ecological index

作　　者：张引 陈丽[3] 王小红 方刚 ZHANG Yin;CHEN Li;WANG Xiaohong;FANG Gang(School of Environment and Surveying Engineering,Suzhou University,Suzhou 234000,China;S Technology Application Research Center in Northern Anhui,Suzhou 234000,China;Suzhou No.2 High School,Suzhou 234000,China)

机构地区：[1]宿州学院环境与测绘工程学院,安徽宿州234000 [2]皖北3S技术应用研究中心,安徽宿州234000 [3]安徽省宿州市第二中学,安徽宿州234000

出　　处：《安徽农学通报》2025年第5期73-79,共7页Anhui Agricultural Science Bulletin

基　　金：宿州学院省级/国家级大学生创新创业训练计划项目(202310379043,S202310379131);宿州学院科研发展基金项目(2021fzjj23);宿州学院质量工程结余经费项目(szxy2023jyjf61);宿州学院专业带头人项目(2019XJZY06);皖北3S技术应用研究中心(2021XJPT12);安徽省合作实践教育基地项目(2023xqhz065);安徽省高等学校自然科学研究项目(2024AH051818)。

摘　　要：本文以安徽合肥市遥感生态指数为研究对象,以Landsat 5和Landsat 8影像为数据源,对绿度指标、湿度指标、干度指标以及热度指标进行主成分分析,并构建RSEI模型,动态监测和评估研究区生态环境质量,分析其时空变化。结果表明,在时间变化上,2001—2021年,研究区RSEI指数总体呈先下降后缓慢上升趋势。绿度和湿度与生态环境质量呈正相关,而干度和热度与生态环境质量呈负相关。在空间变化上,2001—2011年,RSEI不变区分布较零散,主城区周边的生态环境质量有所下降;2011—2016年,西部和北部区域RSEI值上升,南部部分区域RSEI值下降,但其总体生态环境质量有所改善;2016—2021年,主城区生态环境质量持续好转。本文为相似地区的生态环境质量评价提供参考。The remote sensing ecological index of Hefei City,Anhui Province was selected as the research object and Landsat 5 and 8 images were used as data sources to conduct principal component analysis on greenness index,humidity index,dryness index and heat index.RSEI model was constructed to dynamically monitor and evaluate the ecological environment quality of the research area,and analyze its temporal and spatial changes.The results showed that from 2001 to 2021,the RSEI index in the study area generally declined first and then increased slowly.Greenness and humidity were positively correlated with eco-environmental quality,while dryness and heat were negatively correlated with eco-environmental quality.In terms of spatial change,RSEI invariable areas were scattered from 2001 to 2011,and the ecological environment quality around the main urban area declined.From 2011 to 2016,RSEI values increased in the western and northern parts of the country,and decreased in some southern regions,but its overall ecological environment quality improved.From 2016 to 2021,the ecological and environmental quality in the main urban areas will continue to improve.This paper provides a reference for the evaluation of ecological environment quality of similar areas.

关 键 词：遥感生态指数 生态环境 主成分分析 动态变化监测 

分 类 号：X835[环境科学与工程—环境工程] P237[天文地球—摄影测量与遥感]