Knowledge Management System Of Institute of Earth Environment, CAS
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 | |
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 | |
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. |
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