ERS－1SAR影像森林应用研究初探

Preliminary Research on the Application of ERS 1 SAR in Forest

本研究利用１９９２年成像的覆盖山东省烟台地区的ＥＲＳ－１ＳＡＲ和ＴＭ资料开展工作。研究中首先将这两种遥感资料进行了几何精纠正和与地形图的配准，尔后，用典型相关分析法对遥感资料（ＥＲＳ－１ＳＡＲ、ＴＭ３、ＴＭ４和ＴＭ７）与森林参数（包括平均树高、胸径、枝下高、冠层厚度和郁闭度）间进行了相关分析研究，结果表明，Ｃ波段的ＥＲＳ－１ＳＡＲ资料与森林冠层厚度和平均树高相关程度较高；森林参数综合因子对ＥＲＳ－１ＳＡＲ影像的影响大于对所用ＴＭ波段的影响，说明ＥＲＳ－１ＳＡＲ资料在森林应用中，对森林参数乃至于森林蓄积量的估测是有潜力的。

The data sets used for this study were obtained over the Yantai region inShandong Province by ERS一1 SAR and TM during the period of 1992.Those remote sens-ing data were geometrically corrected and digitally registered.The relationship betweenERS一1SAR,TM data and forest parameters was analysed by using the method of canonicalcorrelation analysis. The results showed that there was a close correlation between C一bandof ERS一1SAR data and crown thickness and average tree height,which indicated that theinfluence of various forest parameters on ERS 1SAR image was bigger than that on TMimage. So there is a great potential of applying ERS一1SAR data for estimating forest pa-rameters,even forest volume.