NDVI在澜沧江流域山区林地覆盖遥感监测中的应用研究

澜沧江流域处于澜沧江———湄公河国际河流上游山地区域 ,生态环境复杂、特殊 ,生态系统十分脆弱。由于林地覆盖状况与流域山地土壤侵蚀、滑坡 ,水资源恶化 ,以及与高山野生动植物消失、遗传性物种多样性迅速减少等区域环境退化问题有着非常密切的关系 ,因此 ,在流域整体综合开发研究中 ,及时、快速地获得对维护山地生态系统非常关键、敏感的林地覆盖宏观状况的监测 ,对于澜沧江———湄公河国际河流的可持续发展研究是非常必要的。这里就利用ＮＤＶＩ进行山区林地覆盖快速遥感监测的技术展开应用研究 ,以期为较大区域的澜沧江流域林地覆盖…

STUDY ON REMOTE SENSING MONITORING FOREST COVER BY NDVI TECHNIQUE IN MOUNTAIN AREA OF LANCANG RIVER BASIN

Lancang River Basin is a typical mountain ecology system.With the cooperation development of the basin,mountain ecology system in this area is destroyed easily.Forest cover is a key fact about region environment changes resulted by human action.Monitoring forest cover is very important for sustainable development of Lancang-Meigong international river.The main purpose of this study is to develop a monitoring methodology to acquire forest cover in mountain area of Lancang River Basin.Study results show that:the approach of monitoring forest cover in mountain area based on NDVI process such as in this study is of well practical value.This methodology is simple and the process is easy performed.Accuracy of monitoring forest cover satisfied the need of the cooperation development of Lancang River Basin.The methodology is suitable to apply in this mountain area.