Using stable isotopes and major ions to investigate the interaction between shallow and deep groundwater in Baiyangdian Lake Watershed, North China Plain

Groundwater is the dominant long-term water resource for agricultural irrigation and industrial production in the Baiyangdian basin, North China Plain. Groundwater and pore-water were investigated to evaluate chemical evolution and geochemical processes in shallow and deep aquifers. Results show that both shallow groundwater and shallow pore-water had higher TDS, Ca2+, Mg2+, SO42-, and HCO3- concentrations than deep groundwater and deep pore-water. Generally, concentrations of groundwater major ions were higher than those of pore-water in shallow aquifers, while they were slightly lower in groundwater than in pore-water from deep aquifers. Water isotopes showed the meteoric origin of groundwater and pore-water, although evaporation signature was traced in shallow groundwater. Shallow groundwater also experienced carbonate dissolution and silicate weathering. Silicate weathering and evaporite dissolution were the major hydrogeochemical processes in deep aquifers. This study indicated that deep groundwater has better water quality, but is vulnerable to contamination from shallow groundwater with high TDS and NO3- concentrations.

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Using major ions and stable isotopes to characterize recharge regime of a fault-influenced aquifer in Beiyishui River Watershed, North China Plain

Journal of Hydrology ◽

10.1016/j.jhydrol.2011.05.048 ◽

2011 ◽

Vol 405 (3-4) ◽

pp. 512-521 ◽

Cited By ~ 35

Author(s):

Ruiqiang Yuan ◽

Xianfang Song ◽

Yinghua Zhang ◽

Dongmei Han ◽

Shiqin Wang ◽

...

Keyword(s):

Stable Isotopes ◽

North China Plain ◽

North China ◽

Major Ions ◽

River Watershed

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Sources and hydrogeological conditions that cause high iodine concentrations in deep groundwater in the Zhangwei watershed, North China Plain

Environmental Earth Sciences ◽

10.1007/s12665-021-09463-3 ◽

2021 ◽

Vol 80 (5) ◽

Author(s):

Yuanjing Zhang ◽

Jianfeng Li ◽

Qichen Hao ◽

Chuanshun Zhi ◽

Chuwen Cui ◽

...

Keyword(s):

North China Plain ◽

North China ◽

High Iodine ◽

Deep Groundwater ◽

Hydrogeological Conditions

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A study on groundwater recharge in the Anyanghe River alluvial fan, North China Plain, based on hydrochemistry, stable isotopes and tritium

Hydrogeology Journal ◽

10.1007/s10040-021-02369-1 ◽

2021 ◽

Author(s):

Xiangui Huang ◽

Jianhua Ping ◽

Wei Leng ◽

Yan Yu ◽

Min Zhang ◽

...

Keyword(s):

Stable Isotopes ◽

Groundwater Recharge ◽

North China Plain ◽

North China ◽

Alluvial Fan

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Evaluation of Groundwater Suitability for Irrigation and Drinking Purposes in an Agricultural Region of the North China Plain

Water ◽

10.3390/w13233426 ◽

2021 ◽

Vol 13 (23) ◽

pp. 3426

Author(s):

Haipeng Guo ◽

Muzi Li ◽

Lu Wang ◽

Yunlong Wang ◽

Xisheng Zang ◽

...

Keyword(s):

North China Plain ◽

North China ◽

Shallow Groundwater ◽

Deep Groundwater ◽

The North ◽

The North China Plain ◽

Drinking Purposes ◽

Groundwater Samples ◽

Groundwater Suitability ◽

Groundwater Wells

Groundwater is an irreplaceable resource for irrigation and drinking in the North China Plain, and the quality of groundwater is of great importance to human health and social development. In this study, using the information from 59 groups of groundwater samples, groundwater quality conditions for irrigation and drinking purposes in an agricultural region of the North China Plain were analyzed. The groundwater belongs to a Quaternary loose rock pore water aquifer. The depths of shallow groundwater wells are 20–150 m below the surface, while the depths of deep groundwater wells are 150–650 m. The sodium adsorption ratio (SAR), sodium percentage (%Na), residual sodium carbonate (RSC), magnesium hazard (MH), permotic index (PI) and electrical conductivity (EC) were selected as indexes to evaluate the shallow groundwater suitability for irrigation. What’s more, the deep groundwater suitability for drinking was assessed and the human health risk of excessive chemicals in groundwater was studied. Results revealed that SAR, Na% and RSC indexes indicated the applicability of shallow groundwater for agricultural irrigation in the study area. We found 57.1% of the shallow groundwater samples were located in high salinity with a low sodium hazard zone. The concentrations of fluorine (F−) in 79.0% of the deep groundwater samples and iodine (I−) in 21.1% of the deep groundwater samples exceeded the permissible limits, respectively. The total hazard quotient (HQ) values of fluorine in over half of the deep groundwater samples exceeded the safety limits, and the health risk degree was ranked from high to low as children, adult females and adult males. In addition to natural factors, the soil layer compression caused by groundwater over-exploitation increased the fluorine concentration in groundwater. Effective measures are needed to reduce the fluorine content of the groundwater of the study area.

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Combination of CFCs and stable isotopes to characterize the mechanism of groundwater-surface water interactions in a headwater basin of the North China Plain

Hydrological Processes ◽

10.1002/hyp.11494 ◽

2018 ◽

Vol 32 (11) ◽

pp. 1571-1587 ◽

Cited By ~ 5

Author(s):

Shiqin Wang ◽

Ruiqiang Yuan ◽

Changyuan Tang ◽

Xianfang Song ◽

Matthew Currell ◽

...

Keyword(s):

Stable Isotopes ◽

Surface Water ◽

North China Plain ◽

North China ◽

The North ◽

The North China Plain

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Comprehensive Understanding of Groundwater Geochemistry and Suitability for Sustainable Drinking Purposes in Confined Aquifers of the Wuyi Region, Central North China Plain

Water ◽

10.3390/w12113052 ◽

2020 ◽

Vol 12 (11) ◽

pp. 3052

Author(s):

Qichen Hao ◽

Yong Xiao ◽

Kang Chen ◽

Yuchen Zhu ◽

Jianfeng Li

Keyword(s):

Brackish Water ◽

North China Plain ◽

North China ◽

Major Ions ◽

Central Area ◽

Mineral Dissolution ◽

Parameter Determination ◽

Groundwater Geochemistry ◽

Drinking Purposes ◽

Confined Aquifers

Confined groundwater is important for the domestic water supply in arid and semiarid regions that have salty phreatic water. A systematic investigation was conducted in the Wuyi region, a typical central area of the North China Plain (NCP), regarding the confined groundwater geochemistry. A total of 59 samples were collected from confined aquifers across the region for in situ parameter determination and laboratory analysis. The results showed the confined groundwater was neutral to slightly alkaline, and dominantly soft fresh. The moderately hard brackish water and very hard brackish water accounted for 1.69% and 6.78% of the total samples, respectively. The hydro-chemical faces are mainly SO4·Cl–Na type with a few of the HCO3–Na type. The entropy-weighted water quality index assessment demonstrated that 21.3% of the groundwater samples came under the medium to extremely poor quality, and were unsuitable for drinking purposes due to the high content of major ions. Various populations are at a chronic health risk at some local sites by high levels of F- and Fe in groundwater, with susceptibility in the order of adult females < adult males < children < infants. The poor groundwater quality and health threats result from the natural water–rock interactions (including mineral dissolution and cation exchange) rather than anthropogenic inputs. This research can provide references for groundwater resource development and management in the NCP and other similar regions worldwide.

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