基于红边位置的台湾相思树叶片叶绿素含量估测模型研究 |
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引用本文: | 张清林,陈文惠,张永贺,郭啸川,褚武道,许炜敏.基于红边位置的台湾相思树叶片叶绿素含量估测模型研究[J].亚热带资源与环境学报,2011,6(3):9-17. |
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作者姓名: | 张清林 陈文惠 张永贺 郭啸川 褚武道 许炜敏 |
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作者单位: | 福建师范大学地理科学学院,福州,350007 |
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基金项目: | 福建省自然科学基金项目 |
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摘 要: | 在BRDF测试系统环境下利用ASD便携式野外光谱仪采集台湾相思树叶片光谱,并用UV2450-分光光度计对观测叶片进行叶绿素含量测定.对光谱数据采用不同算法获得红边位置变量,并与叶绿素含量进行拟合,构建用于估测台湾相思树叶片叶绿素含量的模型.结果表明,各种算法获得的红边位置变量用于构建模型估测叶绿素含量是可行的,其中,采...
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关 键 词: | 高光谱 红边位置 台湾相思树 叶绿素 |
Estimation Models of Chlorophyll Contents in Leaves of Acacia Confusa Based on the Red Edge Position |
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Abstract: | Under BRDF testing system conditions, ASD FieldSpec Pro FR spectroradiometer was used to collect the spectral reflectance of Acacia confusa, and UV2450 spectrophotometer was utilized to determine the chlorophyll content from observation foliage. Models for the estimation of chlorophyll content were built by fitting the chlorophyll content and the red edge position variables obtained from the spectral data by using different algorithms. The results show that the red edge position obtained from the different algorithms is feasible in the estimation of chlorophyll content, and the fifth-order polynomial fitting technique has achieved the highest accuracy among the different algorithms, followed by the accuracy through smooth process after the first derivative. |
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Keywords: | hyperspectral the red edge position Acacia confusa chlorophyll |
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