Remote sensing of chlorophyll concentration in higher plant leaves
Remote sensing of chlorophyll concentration in higher plant leaves
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DOI：
10.1016/s0273-1177(97)01133-2
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发表时间：
1998-01-01
期刊：
影响因子：
--
通讯作者：
Merzlyak, MN
中科院分区：
文献类型：
--
作者：
Gitelson, AA;Merzlyak, MN
特别参考叶绿素浓度的遥感，考虑高等植物叶子的反射光谱。对叶绿素含量最敏感的波长出现在530至630 nm和700 nm附近的宽光谱范围内。反射光谱红边位置的波长与550和700 nm处的反射率密切相关。光谱近红外范围（750 nm 以上）的反射率与 700 nm R-NIR/R-700 和 R-NIR/R-550 的反射率之比与叶子的叶绿素浓度成正比。新引入的算法使得叶绿素估算的误差小于 5 nmol/cm(2) 成为可能，并且可以应用于许多植物物种。它们的动态范围比广泛使用的归一化植被指数宽 6 倍以上。 (NDVI), (C) 1998 COSPAR。由爱思唯尔科学有限公司出版
The reflectance spectra of higher plant leaves are considered with special reference to remote sensing of chlorophyll concentration. Wavelengths with maximum sensitivity to chlorophyll content were found in the wide spectral range from 530 to 630 nm and near 700 nm, The wavelength of the red edge position of the reflectance spectrum correlated very closely with the reflectance at 550 and 700 nm. The ratios of reflectances in the near infra-red range of the spectrum (above 750 nm) to that at 700 nm R-NIR/R-700 and R-NIR/R-550 were directly proportional to the leaves' chlorophyll concentration. Newly introduced algorithms make it possible chlorophyll estimation with an error of less than 5 nmol/cm(2) and could be applied to a number of plant species. They exhibit more than 6 times wider dynamic range than the widely used the Normalized Difference Vegetation Index. (NDVI), (C) 1998 COSPAR. Published by Elsevier Science Ltd.