| 光谱学与光谱分析 |
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| Spectrum Variance Analysis of Tree Leaves under the Condition of Different Leaf water Content |
| WU Jian, CHEN Tai-sheng, PAN Li-xin* |
| Geography Information and Tourism College, Chuzhou University, Anhui Center for Collaborative Innovation in Geographical Information Integration and Application, Chuzhou 239000, China |
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Abstract Leaf water content is an important factor affecting tree spectral characteristics. So Exploring the leaf spectral characteristics change rule of the same tree under the condition of different leaf water content and the spectral differences of different tree leaves under the condition of the same leaf water content are not only the keys of hyperspectral vegetation remote sensing information identification but also the theoretical support of research on vegetation spectrum change as the differences in leaf water content. The spectrometer was used to observe six species of tree leaves, and the reflectivity and first order differential spectrum of different leaf water content were obtained. Then, the spectral characteristics of each tree species leaves under the condition of different leaf water content were analyzed, and the spectral differences of different tree species leaves under the condition of the same leaf water content were compared to explore possible bands of the leaf water content identification by hyperspectral remote sensing. Results show that the spectra of each tree leaf have changed a lot with the change of the leaf water content, but the change laws are different. Leaf spectral of different tree species has lager differences in some wavelength range under the condition of same leaf water content, and it provides some possibility for high precision identification of tree species.
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Received: 2014-09-15
Accepted: 2014-12-15
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Corresponding Authors:
PAN Li-xin
E-mail: czplx@sina.com
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