摘要
运用卫星遥感技术对漓江水系生态环境条件进行解译,综合分析了林地、植被、土壤为主要类型的生态环境现状,应用ERDAS 9.2软件对4个年份的影像进行监督分类,计算归一化植被指数(NDVI)。结果表明,2000—2008年林地面积、裸地面积、水体面积分别增长19.63%、-15.85%和247.21%,漓江流域的生态环境条件有所改善。
Through the use of satellite remote sensing technology, the conditions of ecological environment of Lijiang fiver were explained, a c.mprehensive analysis of the forest, vegetation, soil ecological environment for the main types of situation was proceeded, and the software ERDAS 9.2 was used to supervise and classify the images of 4 years, and to calculate the normalized difference vegetation index （NDVI）. Results showed that forest area, bare land area and water area increased 19.63%, -15.85% and 247.21% respectively, indicating that nearly 8 years, Lijiang fiver has improved the ecological environment conditions change.
出处
《湖北农业科学》
北大核心
2012年第6期1112-1114,1127,共4页
Hubei Agricultural Sciences
基金
广西自治区"十一五"重大水利科技项目(GXKJ2008201)
关键词
漓江水系
生态环境
遥感解译
Lijiang river
eco-environment
remote sensing
