林业科学2011，Vol.47Issue(1)：15-21,7.
基于ETM+和DEM的西藏灌木林遥感分类技术
Remote Sensing Classification Technique of Shrub in Tibet Based on ETM + and DEM
摘要
Abstract
The classification of shrub types in Tibet with the remote sensing would be efficient because of the large size of shrub patch and pure stand mostly. Based on an investigation on the main types of shrub in Tibet by using the remote sensing, elevation, slope, aspect and NDVI were chosen as the main factors influncing spatial distribution of shrubs and discriminate model and rules were established by using the method of discriminate analysis. The remote sensing classification technique of shrub, used in Tibet, was discussed, and an assistant classification was carried out based on spatial distribution. The result showed the accuracy of assistant classification was carried out based on the spatial distribution. Characteristics was 86. 24％, which met the requirements of forestry production. The accuracy of the mixed forests of Sophora davidii, Hippophae and Tamarix ramosissima was 95.00％ , and the accuracy of the other groups were 81.08％ and 81.25％.关键词
西藏/灌木林/遥感分类/空间分布特征Key words
Tibet/ shrub/ remote sensing classification/ spatial distribution分类
农业科技引用本文复制引用
张超,黄清麟,朱雪林,张晓红,普布顿珠,旦增..基于ETM+和DEM的西藏灌木林遥感分类技术[J].林业科学,2011,47(1):15-21,7.基金项目
中国林科院中央级公益性科研院所基本科研业务费专项资金重点项目"西藏灌木林资源评价与遥感监测技术研究"(CAFYBB2007001)和重点课题"西藏森林生态安全屏障功能评估与生态补偿机制研究"(CAFYBB2008035-1). （CAFYBB2007001）
