干旱区生态环境知识资源中心(Arid): Hyperspectral Estimation Model of Organic Matter Content in Farmland Soil in the Arid Zone

Arid

DOI	10.3390/su151813719
	Hyperspectral Estimation Model of Organic Matter Content in Farmland Soil in the Arid Zone
	Subi, Xayida; Eziz, Mamattursun; Zhong, Qing
通讯作者	Eziz, M
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2023
卷号	15 期号:18
英文摘要	Soil organic matter (SOM) is one of the most important indicators of soil quality. Hyperspectral remote sensing technology has been recognized as an effective method to rapidly estimate SOM content. In this study, 173 samples (0-20 cm) were collected from farmland soils in the northwestern arid zones of China. Partial least squares regression (PLSR), support vector machine regression (SVMR), and random forests regression (RFR), based on 15 types of mathematical transformations of the original spectral data of soil, were applied for identifying the optimal estimation method. Distribution of SOM content was mapped using both ground-measured values and predicted values estimated based on the optimum models. Obtained results indicated that the important spectral wavebands with the highest correlation were identified as 421 nm, 441 nm, 1014 nm, 1045 nm, and 2351 nm for SOM in the soil. Spectral transformations had obvious effects on the spectral characteristics of SOM. The optimal estimation was obtained when RFR was combined with the reciprocal logarithmic first-order differential (RLFD) (R2 = 0.884, RMSE = 2.817%, MAE = 2.222) for SOM contents. Finally, the RFR-RLFD method had much better performance compared with the PLSR and SVMR models. Results of this study can provide an alternative to the application of the hyperspectral estimation of SOM in farmland soils in arid zones.
英文关键词	hyperspectral remote sensing SOM PLSR SVMR RFR
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:001074144200001
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398835
推荐引用方式 GB/T 7714	Subi, Xayida,Eziz, Mamattursun,Zhong, Qing. Hyperspectral Estimation Model of Organic Matter Content in Farmland Soil in the Arid Zone[J],2023,15(18).
APA	Subi, Xayida,Eziz, Mamattursun,&Zhong, Qing.(2023).Hyperspectral Estimation Model of Organic Matter Content in Farmland Soil in the Arid Zone.SUSTAINABILITY,15(18).
MLA	Subi, Xayida,et al."Hyperspectral Estimation Model of Organic Matter Content in Farmland Soil in the Arid Zone".SUSTAINABILITY 15.18(2023).