Wavelength Selection for Estimating Soil Organic Matter Contents Through the Radiative Transfer Model

doi:10.1109/access.2020.3026813

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	Wavelength Selection for Estimating Soil Organic Matter Contents Through the Radiative Transfer Model
	J. Yuan; X. Wang; C. X. Yan; S. B. Chen; S. R. Wang; J. Q. Zhang; Z. Y. Xu; X. P. Ju; N. Ding; Y. Z. Dong and W. F. Zhang
	2020
发表期刊	Ieee Access
ISSN	2169-3536
卷号	8 页码:176286-176293
摘要	Considering that large quantities of soil hyperspectral data include the redundancy and overlap of spectral information, the technology of selecting feature wavelength can effectively solve these problems, and improve the accuracy and stability of the soil organic matter (SOM) content retrieval model. Traditional methods of wavelength selection mainly attempt to establish the empirical relationship between reflectance and SOM contents, and the performance is directly related to the quality and representativeness of the "training data". This study flrst distinguished the sensitive wavelength interval of SOM through the sensitivity analysis (SA) of theSOMto soil reflectance in radiative transfer model. Then sensitivewavelength points ofSOMwere ascertained using the successive projection algorithm (SPA): 468, 476, 496, 599, 775 and 900nm. Results show that SOM content can be estimated with high accuracy (root-mean-square error of prediction (RMSEP) < 0.234%, coeflcient of determination (R-2) > 82.9%) by adopting the selected six wavelengths. Especially at 599nm, the accuracy of SOM content estimation is the highest (RMSEP: 0.176%, R-2: 90.4%). Compared with traditional empirical wavelength selection methods, the wavelength selection based on the SA-SPA with the SOM radiative transfer model improves the generalizability and accuracy of the result. The research provides theoretical basis and technical support for the remote sensing retrieval of SOM, the development of rapid spectral instruments, and the bands setting of sensor instrument.
DOI	10.1109/access.2020.3026813
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收录类别	SCI
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65004
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Yuan,X. Wang,C. X. Yan,et al. Wavelength Selection for Estimating Soil Organic Matter Contents Through the Radiative Transfer Model[J]. Ieee Access,2020,8:176286-176293.
APA	J. Yuan.,X. Wang.,C. X. Yan.,S. B. Chen.,S. R. Wang.,...&Y. Z. Dong and W. F. Zhang.(2020).Wavelength Selection for Estimating Soil Organic Matter Contents Through the Radiative Transfer Model.Ieee Access,8,176286-176293.
MLA	J. Yuan,et al."Wavelength Selection for Estimating Soil Organic Matter Contents Through the Radiative Transfer Model".Ieee Access 8(2020):176286-176293.

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