乐山市2020年生态环境脆弱性评价  

作　　者：万鹏 谭锶源 

机构地区：[1]成都理工大学地球科学学院,四川成都610059

出　　处：《科技创新与应用》2022年第21期66-70,共5页Technology Innovation and Application

摘　　要：文章采用Landsat8系列遥感数据与非遥感数据相结合,构建的“生态敏感性-生态恢复力-生态压力度”评价体系,利用主成分分析方法,研究乐山市生态脆弱性的时空特性。结果表明,在空间格局上,乐山市整体生态水平呈现东南部向西北部地区减弱的趋势;同时,乐山市整体各脆弱类型水平处于中下等级;需要对生态环境加强建设和保护。In this paper,based on the combination of Landsat8 series remote sensing data and non-remote sensing data,the evaluation system of"ecological sensitivity-ecological resilience-ecological pressure"is constructed,and the principal component analysis method is used to study the temporal and spatial characteristics of ecological vulnerability in Leshan City.The results show that in the spatial pattern,the overall ecological level of Leshan City tends to weaken from southeast to northwest.At the same time,the overall level of vulnerable types in Leshan City is in the middle and lower level;It is necessary to strengthen the construction and protection of the ecological environment.

关 键 词：生态脆弱性评价 SRP模型 主成分分析 乐山市 

分 类 号：X821[环境科学与工程—环境工程]