摘要
以2007年和2010年TM遥感影像为基础数据源,运用监督分类并通过GPS野外验证,得出威宁草海周围两期的土地利用类型图。通过遥感调查分析,草海周围的森林覆盖率是增加的,整体生态环境有变好的趋势,但围湖造田现象仍然存在,所以草海的保护工作仍很艰巨。
in this study, we used TM remote sensing （RS） images 2007 and 2010 as the basic data, drew the 2 0 0 7 and 2 0 1 0 land use maps for areas around Caohai Marsh in Weining County. By RS survey and analysis, we concluded that the forest coverage rate increased from 2007 to 2010, and the whole eco -enviromnent quality was improved. While reclaiming lands from the lakes can still be found in that area, which indicated that a lot of work has to be done involving Caohai Marsh protection.
出处
《环保科技》
2012年第4期16-18,21,共4页
Environmental Protection and Technology
基金
环保公益性行业科研专项基金项目([2012]09038)
关键词
土地利用
遥感
草海
生态环境
landuse, remote sensing （ RS）, Caohai Marsh, eco - environment
