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Hydrochemical analysis and groundwater suitability for drinking and irrigation in an arid agricultural area of the Northwest China.
Tang, Lijun; Yao, Rongwen; Zhang, Yunhui; Ding, Wenming; Wang, Jing; Kang, Jinhui; Liu, Guihuan; Zhang, Wei; Li, Xiaohui.
Afiliación
  • Tang L; Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China.
  • Yao R; Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China.
  • Zhang Y; Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China; Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education of China, Beijing Normal University, Beijing 100875, China. Electronic address: zhangyunhui@
  • Ding W; Mineral Geological Survey Institute of Ningxia Hui Autonomous Region, Yinchuan 750000, China.
  • Wang J; Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China.
  • Kang J; Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China.
  • Liu G; Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China.
  • Zhang W; Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China.
  • Li X; Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China.
J Contam Hydrol ; 259: 104256, 2023 Nov.
Article en En | MEDLINE | ID: mdl-37865976
Groundwater is the foremost water source in the arid and semiarid regions of Northwest China. Assessing groundwater's drinking and irrigation quality is essential for protecting these valuable groundwater resources. In this study, a total of 24 confined groundwater samples and 54 phreatic groundwater samples were collected in the southern and central Ningxia area for hydrochemical analysis and quality assessment. The hydrochemical results revealed that hydrochemical types of phreatic and confined groundwater consistently belonged to Na-SO4-Cl and Na-Mg-SO4-Cl types. The driving forces of groundwater chemistry were determined by gypsum dissolution, silicate dissolution, and positive cation exchange for phreatic and confined aquifers. The entropy-weighted water quality index (EWQI) and irrigation water quality index (IWQI) showed that the drinking water quality and irrigation quality were better in phreatic groundwater than in confined groundwater due to the Neogene-Paleogene groundwater system recharge and strong evaporation. Measures such as controlling groundwater extraction and optimizing well placement need to be implemented. The achievements would be helpful for groundwater management and protection in agricultural areas under semi-arid and arid climates.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Agua Subterránea País/Región como asunto: Asia Idioma: En Revista: J Contam Hydrol Asunto de la revista: TOXICOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Agua Subterránea País/Región como asunto: Asia Idioma: En Revista: J Contam Hydrol Asunto de la revista: TOXICOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos