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

doi:10.1109/access.2020.3026813

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	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
刊名	Ieee Access
	2020
卷号	8 页码:176286-176293
ISSN号	2169-3536
DOI	10.1109/access.2020.3026813
英文摘要	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.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[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.