【摘要】 高光谱遥感的快速发展使得定量估算植被纤维素含量成为可能。本研究采用美国ASD公司生产的野外光谱辐射仪测量樟树幼林的冠层光谱,对观测叶片进行了同步纤维素含量的测定。利用统计相关分析法,分析樟树冠层光谱与纤维素含量之间的相关关系。研究结果表明:在325nm至1075nm波段范围内,樟树幼林纤维素含量的敏感波段位于895nm、590nm、591nm;通过建立各敏感波段与纤维素含量之间的估算模型,并进行精度检验,得出了纤维素含量估算的高光谱模型为:y=38.611+3894.056×α895-14713.7×α590+11100.905×α591。说明利用高光谱遥感数据可以估测樟树幼林的纤维素含量。更多还原

【Abstract】 The fast development of hyperspectral RS makes it possible to estimate the cellulose content of vegetation quantitatively.In this study,young camphor has been selected as the object to be studied,and the spectral reflectance of canopy has been mensurated by ASD HandHeld Spectrometer in field.The cellulose content has been measured in lab at the same time.The relationship between the spectral reflectance of canopy and cellulose content has been analyzed by statistical method.The result shows that,within the range from 325nm to 1075nm,the sensitive wavebands of cellulose content situated at 895nm,590nm and 591nm.Several estimation models between the sensitive wavebands and cellulose content have been built.A fittest hyperspectral RS estimation model for the mensuration of cellulose content has been established after precision test:y=38.611+3894.056×α895-14713.7×α590+11100.905×α591.This result suggests that the hyperspectral RS estimation model can be used to estimate the leaf cellulose content of young camphor.更多还原