摘要
为了解近年来长江沿岸人为干扰变化情况,基于江苏省地理国情数据,结合人为干扰理论,利用GIS、RS技术,从时空视角分析了2015—2020年长江苏州段1 km沿岸区域的人为干扰动态变化情况。结果表明:①区域内地表覆盖呈现“生态用地—建设用地—农业用地”协调发展的分布特征,生态保护修复成效显著;②区域内人为干扰总强度以重度干扰和中度干扰为主,整体变化较平稳,变化剧烈区域零星分布在生态修复重点区域和一些大型码头周边。由此可知,定量分析长江流域的人为干扰情况,对评估长江大保护成效具有积极意义。
In order to understand the changes of hemeroby index along the Yangtze River in recent years,based on the geographical conditions data of Jiangsu Province,combining with the human interference theory,we used GIS and RS technologies to analyze the dynamic changes of hemeroby index within 1 km along the Yangtze River in Suzhou from 2015 to 2020.The results show that①the land cover presents the coordinated distribution characteristics of“ecological land-construction land-agricultural land”,and the ecological protection and restoration effects are remarkable.②The total hemeroby index is dominated by severe and moderate hemeroby,and the overall change is relatively stable.The areas with severe changes are scattered in the key areas of ecological restoration and around some large docks.It can be seen that quantitative analysis of hemeroby index along the Yangtze River has positive significance for evaluating the protection effectiveness of the Yangtze River.
作者
柴燕妮
张浩
高旭翔
王丹
CHAI Yanni;ZHANG Hao;GAO Xuxiang;WANG Dan(Provincial Geomatics Centre of Jiangsu,Nanjing 210013,China)
出处
《地理空间信息》
2024年第7期68-71,共4页
Geospatial Information
基金
苏州市生态保护红线重点区域监测项目(SZLJ2021-C-010)
江苏省自然资源科技计划资助项目(JSZRKJXM2021053)。
关键词
人为干扰度
地表覆盖分类
生态环境
长江苏州段
hemeroby index
land cover classification
ecological environment
Yangtze River in Suzhou
