小流域生态安全景观指标的提取方法研究  

The Extraction Methods of Ecological Security Landscape Metrics in Small Watershed

作　　者：田静毅[1,2] 王立新[2] 王继彬[2] 

机构地区：[1]吉林大学环境资源学院,长春130026 [2]中国环境管理干部学院,河北秦皇岛066004

出　　处：《水土保持研究》2007年第5期38-40,共3页Research of Soil and Water Conservation

基　　金：河北省技术研究与发展项目(04276905);河北省教育厅自然科学项目(2004469)

摘　　要：景观指标是生态安全指标的重要组成部分,以小流域为单元的生态安全景观指标体系的构建以及指标提取方法是区域生态安全评价的基础。基于GIS、景观结构分析软件fragstats,制作了小流域土地覆盖景观图。基于数字地形技术实现了小流域的划分,提取了秦皇岛市84个小流域的生态安全景观指标。对小流域土地覆盖景观制图、小流域生态安全评价景观指标体系的构建和提取方法进行了探索。Qinhuangdao is selected as study area. The establishment and extraction methods of ecological security landscape metrics system of small watershed are very important. The land cover landscape maps of small watersheds are compiled based on the land use interpreted from Landsat ETM＋images in 2002. The landscape metrics system is an important part of the ecological security indicator system. Based on GIS and landscape software fragstats, the ecological security landscape metrics of small watersheds were extracted. The establishment and extraction methods of ecological security landscape metrics system of small watershed were studied.

关 键 词：小流域 景观指标 生态安全 GIS and FRAGSTATS 

分 类 号：P208[天文地球—地图制图学与地理信息工程]