航天遥感技术在森林资源调查中的应用研究

Application of Aerospace Remote Sensing in Forest Survey

本文通过ＴＭ影像在甘肃省白龙江林区（总面积５６．８万ｈａ）森林资源调查中的应用实践，①分析了１：１０万、１：５１、１：２．５万比例尺ＴＭ影像图的技术性能及其在森林资源调查中的适用性。②ＴＭ影像图在森林资源二类调查中的应用情况。③使用ＴＭ影像图分层估测森林面积、蓄积的方法及精度分析。④森林资源调查中使用ＴＭ影像应注意时相选择、精度检验以及信息增强与压缩等技术问题。⑤建议ＴＭ影像图处理、成图等方面实现标准化、规范化。

Through using TM images in the forest investigation in theBailong River forest region of Gansu Provice(total area 568000 ha.),theauthors drew the concItisions:①The analysis of TM images(1: 100000,1:50000,1:25000)is suitable for the forest survey,②Vegetation sea-sonal change and accuracy analysis and image enhancement and image datacompaction are very important in the forest investigation using TM ima-ges;③The image processing should be carried out with standardizationmethod.