DOI: 10.1007/s11069-018-3451-4
论文题名: Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China
作者: Yang Q. ; Li Z. ; Xie C. ; Liang J. ; Ma H.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 101, 期: 2 起始页码: 309
结束页码: 325
语种: 英语
中文关键词: Groundwater pollution
; Irrigation water
; Ordos Basin
; PHREEQC
; Risk assessment
英文关键词: evaporation
; groundwater pollution
; hydrochemistry
; hydrological modeling
; nitrate
; precipitation (climatology)
; risk assessment
; water quality
; water-rock interaction
; China
; Ordos Basin
英文摘要: Irrigation water quality is of great concerns to the sustainable agriculture and often is neglected in most irrigation areas in Ordos Basin, a semi-arid area in China. In this paper, a hydrochemical investigation of groundwater was performed to highlight the groundwater quality and evaluate its risk/suitability for irrigation purpose in Ordos Basin. Hydrographical method, Piper diagram and PHREEQC geochemical modeling were employed to characterize the groundwater quality and the relevant geochemical processes. Electrical conductivity, sodium percentage (Na%), sodium adsorption ratio (SAR), residual sodium carbonate (RSC), permeability index, magnesium ration (MR) and Kelley’s ration (KR) were used to evaluate the suitability for irrigation purpose. In summary, 86.67% of the area is fresh water (TDS < 1 g/L) with HCO3 type, brackish water (1 g/L < TDS < 3 g/L) with HCO3, SO4, HCO3·Cl, Cl·SO4 type and salt water (TDS > 1 g/L) on the northwest side of the study area with Cl–Ca·Mg·Na type. The distribution of nitrate contents showed that nitrate pollution is a persistent problem that affects a wide area of the aquifer. The calculated Na%, SAR, RSC, MR and KR indicate that most of the groundwater is of acceptable risk for irrigation as well as for domestic usage. The Gibbs plot showed that the hydrochemistry of groundwater samples was mainly influenced by evaporation–precipitation and water rock dominance including carbonate and silicate minerals weathering. © 2018, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168821
Appears in Collections: 气候变化与战略
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作者单位: Key Laboratory of Groundwater Resources and Environment Ministry of Education, Jilin University, Changchun, 130021, China; Geothermal Institute of Hydrological Engineering Geological Survey, Shijiazhuang, 050000, China; School of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; Key Laboratory for Groundwater and Ecology in Arid and Semi-arid Areas, Xi’an Center of Geological Survey, CGS, Xi’an, 710000, China
Recommended Citation:
Yang Q.,Li Z.,Xie C.,et al. Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China[J]. Natural Hazards,2020-01-01,101(2)