Assessing the value of electrical resistivity derived soil water content: Insights from a case study in the Critical Zone of the Chinese Loess Plateau

doi:10.1016/j.jhydrol.2020.125132

IEECAS OpenIR

	Assessing the value of electrical resistivity derived soil water content: Insights from a case study in the Critical Zone of the Chinese Loess Plateau
	Sun, Hui 1,2,3; Wang, Yunqiang 1,2,4; Zhao, Yali 1,5; Zhang, Pingping 1,2; Song, Yi 1,2; He, Meina 1; Zhang, Chencheng 1; Tong, Yongping 1,5; Zhou, Jingxiong 1; Qi, Lijun 1; Xu, Lan 1,5
通讯作者	Wang, Yunqiang(wangyq@ieecas.cn)
	2020-10-01
发表期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
卷号	589 页码:12
摘要	Acquiring data for the soil water content (theta) is important for assessing vegetation growth, drought, and climate change. However, it is a time-consuming and labor-intensive task that is especially challenging in deep soils. Therefore, we introduce the noninvasive technique of electrical resistivity tomography (ERT) for indirectly determining theta through the development of prediction models for loessial regions under different site conditions (i.e., soil texture, land use, soil depth, and dry/wet conditions). We obtained 2769 pairs of electrical resistivity (rho) and theta datasets using ERT (53 sites) and a neutron probe (69 access tubes) on the Chinese Loess Plateau. We built linear and nonlinear models correlating rho and theta and selected the best model according to the coefficient of determination (R-2) and root-mean-square error (RMSE). The uncertainty and sensitivity of ERT-derived theta were further evaluated and acceptable results were obtained. The new models correlating rho and theta under different site conditions are the first set of models based on field data from a loessial region, and their acceptable performance makes them applicable for measuring different soil parameters in the Loess Plateau and possibly other loessial regions around the world.
关键词	Deep soil Electrical resistivity Land use Loessial soil Soil condition Soil water content
DOI	10.1016/j.jhydrol.2020.125132
关键词[WOS]	GROUND-PENETRATING RADAR ; SENSITIVITY-ANALYSIS ; ELECTROMAGNETIC INDUCTION ; SPATIAL VARIABILITY ; MOISTURE ; TOMOGRAPHY ; INVERSION ; STORAGE ; CONDUCTIVITY ; UNCERTAINTY
收录类别	SCI ; SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40020203] ; National Natural Science Foundation of China[41722106] ; National Natural Science Foundation of China[41971045] ; National Natural Science Foundation of China[41807020] ; Ten Thousand Talent Program for Young Top-notch Talent
WOS研究方向	Engineering ; Geology ; Water Resources
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Ten Thousand Talent Program for Young Top-notch Talent
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000568830400015
出版者	ELSEVIER
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15324
专题	中国科学院地球环境研究所
通讯作者	Wang, Yunqiang
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 3.Xian Inst Innovat Earth Environm Res, Xian 710061, Peoples R China 4.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China 5.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun, Hui,Wang, Yunqiang,Zhao, Yali,et al. Assessing the value of electrical resistivity derived soil water content: Insights from a case study in the Critical Zone of the Chinese Loess Plateau[J]. JOURNAL OF HYDROLOGY,2020,589:12.
APA	Sun, Hui.,Wang, Yunqiang.,Zhao, Yali.,Zhang, Pingping.,Song, Yi.,...&Xu, Lan.(2020).Assessing the value of electrical resistivity derived soil water content: Insights from a case study in the Critical Zone of the Chinese Loess Plateau.JOURNAL OF HYDROLOGY,589,12.
MLA	Sun, Hui,et al."Assessing the value of electrical resistivity derived soil water content: Insights from a case study in the Critical Zone of the Chinese Loess Plateau".JOURNAL OF HYDROLOGY 589(2020):12.