Remote sensing estimation of paddy rice biomass based on microwave canopy scattering model

被引：0
|
作者：
Zhang Y. [1 ,2 ,3 ]
Zhang Z. [3 ]
Su S. [3 ]
Wu J. [3 ]
机构：
[1] School of Resources and Environmental Science, East China Normal University
[2] Research Center of Remote Sensing and Geoscience, Northeast Institute of Geography and Agroecology of CAS
[3] College of Environmental and Resources Sciences, Zhejiang University
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2011年 / 27卷 / 09期
关键词：
Biomass; Model; Paddy rice; Remote sensing; Scattering model; Structural parameters;
D O I：
10.3969/j.issn.1002-6819.2011.09.019
中图分类号：
学科分类号：
摘要：
A microwave canopy scattering model was developed for estimating rice biomass effectively. Taking paddy rice biophysical parameters measured in field survey as inputs of modified microwave canopy scattering model to simulate backscattering coefficient of paddy rice canopy, the modified model was integrated with generic algorithm optimization tool (GAOT) for the inversion of rice biophysical parameters from radar data ALOS/PALSAR. And then, a rice biomass map was generated. The results showed that the estimation error of rice canopy backscattering coefficients was less than 1dB with the modified model, and the difference of rice biomass between measured and estimated was below 200 g/m2. This research showed the potentials of microwave remote sensing physical model for inversing rice biophysical parameters and estimating rice biomass.
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页码：100 / 105
页数：5
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