Semi-Empirical Soil Organic Matter Retrieval Model With Spectral Reflectance

doi:10.1109/access.2019.2941258

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

	Semi-Empirical Soil Organic Matter Retrieval Model With Spectral Reflectance
	J.Yuan; C.H.Hu; C.X.Yan; Z.Z.Li; S.B.Chen; S.R.Wang
刊名	Ieee Access
	2019
卷号	7 页码:134164-134172
关键词	Soil organic matter retrieval,reflectance,semi-empirical model,KM,machine learning-methods,moisture retrieval,calibration,prediction,carbon,interpolation,spectroscopy,texture,Computer Science,Engineering,Telecommunications
ISSN号	2169-3536
DOI	10.1109/access.2019.2941258
英文摘要	Rapid and accurate monitoring of soil organic matter (SOM) content is of great significance for precision fertilization of farmland. However, the SOM retrieval models are mainly established by statistical methods, which have limited application scope and incomplete theoretical foundation. Moreover, the accuracy of the SOM retrieval models remains raised. In this paper, for the first time, a semi-empirical SOM content retrieval model is constructed, which has certain theoretical basis, strong applicability and higher accuracy than before. Based on the Kubelka-Munk (KM) theory, the SOM retrieval model with the absorption coefficient k and scattering coefficient s related to SOM (r = k/s) is derived. The validity and reliability of the model are confirmed with validation set (n = 26) including three sorts of soils. Results show that the model can estimate SOM content in different sorts of soils with high prediction accuracy and good prediction ability (root mean square errors of prediction (RMSEP), coefficients of determination (R-2) and relative percentage deviation (RPD) values of 0.18%, 89.9% and 3.2, respectively) in the range of 552-950nm. The model provides an innovative method for predicting SOM content.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/62839]
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,C.H.Hu,C.X.Yan,et al. Semi-Empirical Soil Organic Matter Retrieval Model With Spectral Reflectance[J]. Ieee Access,2019,7:134164-134172.
APA	J.Yuan,C.H.Hu,C.X.Yan,Z.Z.Li,S.B.Chen,&S.R.Wang.(2019).Semi-Empirical Soil Organic Matter Retrieval Model With Spectral Reflectance.Ieee Access,7,134164-134172.
MLA	J.Yuan,et al."Semi-Empirical Soil Organic Matter Retrieval Model With Spectral Reflectance".Ieee Access 7(2019):134164-134172.