基于RS和GIS的木兰县植被盖度定量研究  

Quantitatively analyzed vegetation coverage of Mulan country based on RS and GIS

作　　者：张云[1] 

机构地区：[1]国家林业局调查规划设计院,北京100714

出　　处：《华东森林经理》2013年第2期72-75,共4页East China Forest Management

摘　　要：以木兰县1989年和2011年两景Landsat TM遥感影像为主要数据,基于RS和GIS技术,在定量反演归一化植被指数(NDVI)的基础上,获取植被盖度等级图并进行动态分析。研究结果表明:近22年来NDVI在0.2～0.3面积增加的最多,为141.41km2,在0.4～0.5减少的最多,为340.29 km2,低盖度植被区域面积增加的最多,高盖度植被区域面积减少的最多。该研究成果对深入了解该区生态环境质量变化具有重要的意义。The Landsat TM images of 1989 and 2011 in study region were as major data resource, the Normalized Difference Vegetation Index （NDVI） was quantitatively retrived based on RS and GIS, on this basis, the classification of vegetation coverage was obtained and studied its dynamics changes, the study results shown： the increasing area of NDVI （0.2-0.3） was greatest during 12 years, which was 141.41 km^2, on the contrary, the reduced area of NDVI （0.4-0.5） was 340.29 km^2, the lower vegetation coverage region covered the greatest increasing area, while the reduced area of higher vegetation coverage was maximum. Then the results has the very important significance for deeply understanding the ecological environment quality change of study region.

关 键 词：NDVI 植被盖度 遥感监测 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置]