气候变化领域集成服务门户(CCPortal): Prediction of Soil Organic Carbon Contents in Tibet Using a Visible Near-Infrared Spectral Library

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DOI	10.1134/S1064229322601214
	Prediction of Soil Organic Carbon Contents in Tibet Using a Visible Near-Infrared Spectral Library
	Jia, Xiaolin; Xie, Modian; Hu, Bifeng; Zhou, Yin; Li, Hongyi; Zhao, Wanru; Deng, Wanming; Shi, Zhou
发表日期	2023
ISSN	1064-2293
EISSN	1556-195X
起始页码	727
结束页码	737
卷号	56 期号:6
英文摘要	Accurate soil organic carbon (SOC) data are very important for management of agricultural production and climate change mitigation. Visible near-infrared diffuse reflectance spectroscopy is an inexpensive, non-destructive, efficient, and reliable technique for monitoring soil properties. Soil spectral libraries can contain large sets of diverse soil data for empirical calibration. In this study, we focused on improving the prediction accuracy of the SOC content at the local field scale in Tibet using field-wet, intact spectra and different spectral libraries. The direct standardization algorithm and piecewise direct standardization algorithm were used to remove the influence of environmental factors from the in situ vis-NIR spectra. These algorithms effectively removed the influence of environment factors from the field-wet, intact spectra. The ratio of performance to deviation values for prediction of the SOC content using the field and laboratory spectra with the local spectral library were 1.57 and 1.98, respectively. The local spectral library models outperformed spiked national spectral library models and had higher ratio of performance to deviation values for shrub meadows, forests, and the total dataset.
关键词	brown soil soil organic carbon direct standardization piecewise direct standardization visible near-infrared spectral library
英文关键词	FIELD-SCALE; SPECTROSCOPY; CALIBRATION; ATTRIBUTES; MODELS
WOS研究方向	Soil Science
WOS记录号	WOS:000970398700004
来源期刊	EURASIAN SOIL SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283113
作者单位	North China University of Water Resources & Electric Power; Jiangxi University of Finance & Economics; Zhejiang University; Zhejiang University of Finance & Economics; Zhejiang University
推荐引用方式 GB/T 7714	Jia, Xiaolin,Xie, Modian,Hu, Bifeng,et al. Prediction of Soil Organic Carbon Contents in Tibet Using a Visible Near-Infrared Spectral Library[J],2023,56(6).
APA	Jia, Xiaolin.,Xie, Modian.,Hu, Bifeng.,Zhou, Yin.,Li, Hongyi.,...&Shi, Zhou.(2023).Prediction of Soil Organic Carbon Contents in Tibet Using a Visible Near-Infrared Spectral Library.EURASIAN SOIL SCIENCE,56(6).
MLA	Jia, Xiaolin,et al."Prediction of Soil Organic Carbon Contents in Tibet Using a Visible Near-Infrared Spectral Library".EURASIAN SOIL SCIENCE 56.6(2023).