Ecology and Evolution | |
Global remote sensing of water–chlorophyll ratio in terrestrial plant leaves | |
1  | |
关键词: Leaf area index; leaf chlorophyll concentration; leaf water concentration; radiative transfer; remote sensing; | |
DOI : 10.1002/ece3.361 | |
来源: Wiley | |
【 摘 要 】
I evaluated the use of global remote sensing techniques for estimating plant leaf chlorophyll a + b (Cab; μg cm−2) and water (Cw; mg cm−2) concentrations as well as the ratio of Cw/Cab with the PROSAIL model under possible distributions for leaf and soil spectra, leaf area index (LAI), canopy geometric structure, and leaf size. First, I estimated LAI from the normalized difference vegetation index. I found that, at LAI values <2, Cab, Cw, and Cw/Cab could not be reliably estimated. At LAI values >2, Cab and Cw could be estimated for only restricted ranges of the canopy structure; however, the ratio of Cw/Cab could be reliably estimated for a variety of possible canopy structures with coefficients of determination (R2) ranging from 0.56 to 0.90. The remote estimation of the Cw/Cab ratio from satellites offers information on plant condition at a global scale.Abstract
【 授权许可】
CC BY-NC
© 2012 The Authors. Ecology and Evolution published by Blackwell Publishing Ltd.
Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
【 预 览 】
Files | Size | Format | View |
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RO202107150010337ZK.pdf | 615KB | download |