基于RSEI鄱阳湖生态经济区生态质量评价  

Ecological quality assessment of ecological economic zone in Poyang Lake based on remote sensing ecological index

作　　者：张雅欣 詹淇雯 ZHANG Yaxin;ZHAN Qiwen(School of Civil Engineering and Surveying and Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China)

机构地区：[1]江西理工大学土木与测绘工程学院,江西赣州341000

出　　处：《北京测绘》2024年第8期1166-1171,共6页Beijing Surveying and Mapping

基　　金：江西省研究生创新专项资金(YC2022-S664)。

摘　　要：本文以陆地卫星(Landsat)影像为基础,运用遥感技术提取绿度、湿度、干度和热度四个指标,通过主成分分析方法构建了2002—2022年的鄱阳湖生态经济区遥感生态指数(RSEI),全面评估了该地区生态质量的时空变化。研究表明:2002—2020年,鄱阳湖生态经济区RSEI指数呈增长趋势,大部分区域的RSEI等级为良和优,占比从76.86%提高到了82.46%,变化最明显的地区主要集中在鄱阳湖流域的湖泊湿地。本研究为进一步实现鄱阳湖生态经济区的生态环境和经济的协调发展提供了科学依据。Based on Landsat images,this paper used remote sensing technology to extract the four indexes of greenness,humidity,dryness,and heat.The remote sensing ecological index(RSEI)of the ecological economic zone in Poyang Lake from 2002 to 2022 was constructed by principal component analysis,and the temporal and spatial changes of the ecological quality in this zone were evaluated comprehensively.The results show that from 2002 to 2020,the RSEI of the ecological economic zone in Poyang Lake shows an increasing trend.The RSEI rating of most areas is good and excellent,and the proportion increases from 76.86%to 82.46%,with the most obvious change mainly concentrated in the lake wetland of Poyang Lake Basin.This study provides a scientific basis for further realizing the coordinated development of the ecological environment and economy in the ecological economic zone in Poyang Lake.

关 键 词：Landsat影像 生态环境质量 遥感生态指数(RSEI) 时空分布 鄱阳湖生态经济区 

分 类 号：P237[天文地球—摄影测量与遥感]