Seasonal river–lake-groundwater coupling simulation and groundwater overexploitation and ecological environment assessment in the Aiding Lake Basin, NW China

Lu, Chuiyu; Wu, Chu; Sun, Qingyan; Wu, Xiong; Yan, Lingjia; Qin, Tao

doi:10.1016/j.jhydrol.2024.130896

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Relying mainly on precipitation, the Tabu River experiences uneven distribution of rainfall, with the majority occurring in July and August, while the rest of the year experiences scarce precipitation, leading to flow interruptions in the middle and lower reaches. This is a common characteristic of seasonal rivers in arid to semi-arid regions, as supported by similar findings in other studies [46][47][48]. The assessment of the Tabu River's health reveals an overall better condition in the upstream compared to the downstream.…”

Section: Discussionsupporting

confidence: 87%

Construction and Application of a Seasonal River Health Evaluation System in Arid and Semi-Arid Areas

Qi,

Wang,

Yin

et al. 2024

Water

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Addressing the inadequacy of theoretical frameworks and evaluation indicators for assessing the health of seasonal rivers in arid and semi-arid regions, this study aims to enrich the theoretical foundation for the management and ecological restoration of seasonal river systems. By selecting seven indicators from three aspects: hydrology, habitat, and social services, a seasonal river health assessment indicator system was constructed for the Tabu River basin. The weights of the indicators were determined using the analytic hierarchy process and entropy weight method, and a classification standard for seasonal river health was established. The health status of the Tabu River in 2021 was evaluated accordingly. The results revealed that the upstream, midstream, and downstream reaches of the Tabu River were categorized as healthy, sub-healthy, and diseased, respectively, with poor hydrological conditions being the primary concern. The satisfaction level of ecological flow within the basin was low, accompanied by deep groundwater levels and water scarcity issues, aligning with the actual situation. This indicator system effectively reflects the true state of seasonal river ecosystems. Based on the evaluation results, measures such as establishing ecological water storage projects and adjusting agricultural planting structures were proposed to alleviate the impacts caused by water scarcity. Additionally, implementing river and lake management systems, water resource protection measures, and water-saving technologies can directly regulate the pressures imposed on rivers by human socio-economic activities, thus alleviating regional water resource shortages and promoting the health of rivers and regional water resources. These findings provide scientific decision-making support for the management of seasonal river basins and the maintenance of river health.

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Section: Discussionsupporting

confidence: 87%

Construction and Application of a Seasonal River Health Evaluation System in Arid and Semi-Arid Areas

Qi,

Wang,

Yin

et al. 2024

Water

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Hydrochemical Evolution Process and Mechanism of Groundwater in the Hutuo River Alluvial Fan, North China

Gai,

Yan,

Fan

et al. 2024

Water

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Due to extensive groundwater exploitation, a groundwater funnel has persisted in the Hutuo River alluvial fan in Shijiazhuang since the 1980s, lasting nearly 40 years and significantly impacting the groundwater chemical characteristics. In this study, based on the groundwater level and chemistry data, the hydrochemical evolution processes and mechanisms of the groundwater during the 1980 groundwater funnel period and the post-2015 artificial governance period were investigated using traditional hydrogeochemical methods and inverse hydrogeochemical simulations. The results show the following: (1) The ion concentrations gradually increased along the groundwater flow path, where they displayed a pattern of lower levels in the northwest and higher levels in the southeast. From 1980 to 2021, the concentrations of major ions were increased. (2) In 1980s, the groundwater hydrochemical type predominantly exhibited HCO3—Ca. From 1980 to 2015, the hydrochemical types diversified into HCO3·Cl—Ca, HCO3—Ca·Mg, and HCO3·SO4—Ca types. Following the artificial governance, the groundwater level rise led to an increase in the concentrations of SO42− and Mg2+. Post-2015, the prevailing hydrochemical type changed to HCO3·SO4—Ca·Mg. (3) The changes in the groundwater level and ion concentrations were quantitatively strongly correlated and exhibited spatial similarity. (4) In the 1980s, the groundwater hydrochemical composition was primarily controlled by the dissolution of albite, dolomite, halite, and quartz; reverse cation exchange; and groundwater exploitation. Since 2015, the hydrochemical composition has mainly been influenced by the dissolution of albite, calcite, and quartz; positive cation exchange; river–groundwater mixing; and industrial activities, with increasing intensities of both water–rock interactions and human activities.

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Seasonal river–lake-groundwater coupling simulation and groundwater overexploitation and ecological environment assessment in the Aiding Lake Basin, NW China

Cited by 2 publications

References 31 publications

Construction and Application of a Seasonal River Health Evaluation System in Arid and Semi-Arid Areas

Construction and Application of a Seasonal River Health Evaluation System in Arid and Semi-Arid Areas

Hydrochemical Evolution Process and Mechanism of Groundwater in the Hutuo River Alluvial Fan, North China

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