气候变化领域集成服务门户(CCPortal): Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China

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DOI	10.1007/s11069-018-3451-4
	Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China
	Yang Q.; Li Z.; Xie C.; Liang J.; Ma H.
发表日期	2020
ISSN	0921030X
起始页码	309
结束页码	325
卷号	101 期号:2
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.
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
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206022
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
推荐引用方式 GB/T 7714	Yang Q.,Li Z.,Xie C.,et al. Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China[J],2020,101(2).
APA	Yang Q.,Li Z.,Xie C.,Liang J.,&Ma H..(2020).Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China.Natural Hazards,101(2).
MLA	Yang Q.,et al."Risk assessment of groundwater hydrochemistry for irrigation suitability in Ordos Basin, China".Natural Hazards 101.2(2020).