The spatial scaling effect of continuous canopy Leaves Area Index retrieved by remote sensing |
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| Authors: | XiRu Xu WenJie Fan Xin Tao |
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| Institution: | (1) Institute of Remote Sensing and GIS, Peking University, Beijing, 100871, China |
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| Abstract: | Leave Area Index (LAI) is one of the most basic parameters to describe the geometric structure of plant canopies. It is also important input data
for climatic model and interaction model between Earth surface and atmosphere, and some other things. The spatial scaling
of retrieved LAI has been widely studied in recent years. Based on the new canopy reflectance model, the mechanism of the scaling effect of
continuous canopy Leaf Area Index is studied, and the scaling transform formula among different scales is found. Both the
numerical simulation and the field validation show that the scale transform formula is reliable.
Supported by National Basic Research Program of China (Grant No. 2007CB714402) and National Natural Science Foundation of
China (Grant Nos. 40401036, 40734025 and 40401036) |
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| Keywords: | spatial scaling effect remotely sensed LAI the true LAI the reflectance model of continuous canopy |
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