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Dynamics of Spatiotemporal Variation of Groundwater Arsenic Due to Salt-Leaching Irrigation and Saline-Alkali Land

文献类型：期刊论文

作者Yin, Shuhui1,2; Tian, Yuan1,2; Yang, Linsheng1,2; Wen, Qiqian1,2; Wei, Binggan1,2
刊名REMOTE SENSING
出版日期2022-11-01
卷号14期号:21页码:18
关键词saline-alkali land salt-leaching irrigation groundwater arsenic spatiotemporal variation
DOI10.3390/rs14215586
通讯作者Wei, Binggan(weibg@igsnrr.ac.cn)
英文摘要Determining the link between the evolution of salt-leaching irrigation, saline-alkali land, and groundwater arsenic (As) is essential to prevent groundwater arsenic pollution and implement appropriate soil salinization control projects. The objectives of our study were to explore the spatiotemporal correlation of saline-alkali land and salt-leaching irrigation with groundwater As in the Hetao Plain. Therefore, groundwater As concentrations during Period I (2006-2010) and Period II (2016-2020) were collected by historical data and chemical measurements. Salt-leaching irrigation area and saline-alkali land area in Period I and Period II were extracted through remote sensing data. With the increase of the salt-leaching irrigation area level (SLIAL) and saline-alkali land area level (SALAL), the variation trend in groundwater As concentration slightly fluctuated, with an increase in the SLIAL at the low SALAL, which may be because short-term flooding may not considerably enhance As mobilization. Lower groundwater As concentrations appeared in regions with higher SLIAL and lower SALAL. A larger saline-alkali land area (higher SALAL) increased the groundwater As concentration. The path analysis model confirmed that salt-leaching irrigation may increase groundwater salinity to affect groundwater As levels and to decrease the saline-alkali land area. From Periods I to II, the difference in path analysis results may imply that the decrease in the saline-alkali land area may have influenced As mobilization due to competitive adsorption caused by the increase in total dissolved solids (TDS) in groundwater. Our results provide new insights for the impacts of saline-alkali land and salt-leaching irrigation both on groundwater As concentration and the geochemical processes of As enrichment in arid and semi-arid areas with more serious salinization.
WOS关键词WESTERN HETAO BASIN ; IMPACT ; WATER ; MOBILIZATION ; MOBILITY ; AQUIFERS ; EXPOSURE ; PLAIN ; RIVER
资助项目National Natural Science Foundation of China[41977400] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0607] ; Central Government Guides Local Science and Technology Development Program[2021ZY0047] ; Central Government Guides Local Science and Technology Development Program[XZ202201YD0014C]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000883589400001
出版者MDPI
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Central Government Guides Local Science and Technology Development Program
源URL[http://ir.igsnrr.ac.cn/handle/311030/187233]  
专题中国科学院地理科学与资源研究所
通讯作者Wei, Binggan
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yin, Shuhui,Tian, Yuan,Yang, Linsheng,et al. Dynamics of Spatiotemporal Variation of Groundwater Arsenic Due to Salt-Leaching Irrigation and Saline-Alkali Land[J]. REMOTE SENSING,2022,14(21):18.
APA Yin, Shuhui,Tian, Yuan,Yang, Linsheng,Wen, Qiqian,&Wei, Binggan.(2022).Dynamics of Spatiotemporal Variation of Groundwater Arsenic Due to Salt-Leaching Irrigation and Saline-Alkali Land.REMOTE SENSING,14(21),18.
MLA Yin, Shuhui,et al."Dynamics of Spatiotemporal Variation of Groundwater Arsenic Due to Salt-Leaching Irrigation and Saline-Alkali Land".REMOTE SENSING 14.21(2022):18.

入库方式： OAI收割

来源：地理科学与资源研究所

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