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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。
In this study, the ERS-1SAR and TM data covering Yantai, Shandong Province were used for imaging in 1992. In the study, we first performed geometric rectification and registration with topographic maps on the two remote sensing data. Then, we analyzed the relationship between remote sensing data (ERS-1SAR, TM3, TM4 and TM7) and forest parameters (including average tree Height, diameter at breast height, branch height, canopy thickness and canopy density. The results show that there is a high correlation between C-band ERS-1SAR data and forest canopy thickness and average tree height. The effect of the factors on the ERS-1SAR image is greater than the impact on the TM band used, indicating that ERS-1SAR data have potential for estimating forest parameters and even forest volume in forest applications.