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

文献类型：期刊论文

作者Sun, Hui1,2,3; Wang, Yunqiang1,2,4; Zhao, Yali1,5; Zhang, Pingping1,2; Song, Yi1,2; He, Meina1; Zhang, Chencheng1; Tong, Yongping1,5; Zhou, Jingxiong1; Qi, Lijun1
刊名JOURNAL OF HYDROLOGY
出版日期2020-10-01
卷号589页码:12
关键词Deep soil Electrical resistivity Land use Loessial soil Soil condition Soil water content
ISSN号0022-1694
DOI10.1016/j.jhydrol.2020.125132
通讯作者Wang, Yunqiang(wangyq@ieecas.cn)
英文摘要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.
WOS关键词GROUND-PENETRATING RADAR ; SENSITIVITY-ANALYSIS ; ELECTROMAGNETIC INDUCTION ; SPATIAL VARIABILITY ; MOISTURE ; TOMOGRAPHY ; INVERSION ; STORAGE ; CONDUCTIVITY ; UNCERTAINTY
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
语种英语
WOS记录号WOS:000568830400015
出版者ELSEVIER
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Ten Thousand Talent Program for Young Top-notch Talent
源URL[http://ir.ieecas.cn/handle/361006/15323]  
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.

入库方式： OAI收割

来源：地球环境研究所

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