本文对天山中部林区TM数据进行了以突出林地信息为目的的图像增强，主成份变换和以消除高山阴影为目的的波段比值处理，从而筛选出有利于进行林区、林地计算机自动识别分类的较为优化波段组合方案，为TM数据在新疆林业工作中的使用打下一定基础。
TM information from the middle parts of the Tianshan Mountains was specially pro– cessed in the paper．A superior band conbination was screened out that would be advantage us to the forest land identification automatically by computer through image enhancement to stress forest land in– formation,through PC transformation and ratio processing in order to remove the shadow of the moun– tains．This research has laid a foundation for TM data application to forestry imventary in Xinjiang．
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