基于MODIS的藏北高原植被分类研究

本文以那曲地区和拉萨市区(文中称藏北高原)作为研究对象,对该区域的植被进行分类。通过地面调查数据、遥感数据、中国植被图集扫描图中经几何校正的西藏藏北高原作为实际参考数据,利用R2V软件和Arc info软件的结合,得出西藏藏北高原植被的数字化图。同时通过中国植被图集中西藏藏北高原的数据和MOD IS卫星6、2、1通道合成数据的特点,利用最大似然估计监督类方法对2004年9月13和27日的EOS/MOD IS卫星遥感图像的西藏藏北高原部分植被进行分类。得出西藏藏北高原7个典型植被类型及其面积,可以反映出该区域植被的特征。这对可持续发展该区域的草地资源提供了决策依据。 

The Vegetation Classification Research of North Tibetan Plateau Based on MODIS

The paper carried out the classification of vegetation of Northern Tibetan plateau (Lhasa City and Nhagchu Prefecture).This paper described three parts as following:Firstly, administrative zone, topography and climate factors of nature disaster were mentioned.Secondly, practical investigation and remote sense date with scanning map from China vegetation map, and R2V soft and Arcinfo were combined for getting a digital vegetation map of Northern Tibetan plateau.Thirdly, Northern Tibetan plateau vegetation was classified by a part of data was got from China vegetation map and MODIS satellites, such as 6, 2 and 1 combination channel with data was got from 13th, 14th of September, 2004.Moreover, 7 typical vegetation types were classified and it offered reason for grassland sustainability and making policy.