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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
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; Xu, Lan1,5
Corresponding AuthorWang, Yunqiang(wangyq@ieecas.cn)
2020-10-01
Source PublicationJOURNAL OF HYDROLOGY
ISSN0022-1694
Volume589Pages:12
AbstractAcquiring 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.
KeywordDeep soil Electrical resistivity Land use Loessial soil Soil condition Soil water content
DOI10.1016/j.jhydrol.2020.125132
WOS KeywordGROUND-PENETRATING RADAR ; SENSITIVITY-ANALYSIS ; ELECTROMAGNETIC INDUCTION ; SPATIAL VARIABILITY ; MOISTURE ; TOMOGRAPHY ; INVERSION ; STORAGE ; CONDUCTIVITY ; UNCERTAINTY
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic 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 Research AreaEngineering ; Geology ; Water Resources
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Ten Thousand Talent Program for Young Top-notch Talent
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000568830400015
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/15324
Collection中国科学院地球环境研究所
Corresponding AuthorWang, Yunqiang
Affiliation1.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
Recommended Citation
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.
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