Evaluating Spatiotemporal Variations of Groundwater–Surface Water Interaction Using an Integrated Hydrological Model in Huashan Basin, China

Zhang, Lu; Dai, Yongqiang; Lin, Jintai; Han, Jiangbo; Sun, Xiaohan; Li, Xue; Liu, Peng; Liao, Aimin

doi:10.3390/su142114325

Cited by 8 publications

(3 citation statements)

References 31 publications

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“…This may be because the original resolution of CanESM5 is 2.5°, much larger than our study area, which only occupies one point of CanESM5 data. Similar situations have also occurred in the Huashan Basin [62].…”

Section: Hydrological Process Under Future Climate Scenariossupporting

confidence: 69%

Climate Change and Hydrological Response in the Ranwu Lake Basin of Southeastern Tibet Plateau

Cui

Zhu

et al. 2023

Water

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It is of great practical significance to accurately distinguish the different water supply sources of rivers and lakes under climate change for regional water resources utilization. This study examines the impact of climate change on the hydrological processes of the Ranwu Lake basin in the southeastern Tibet Plateau. The authors used China Meteorological Forcing Dataset (CMFD) historical data, CanESM5′s future climate predictor, and the SPHY model to analyze trends in temperature, precipitation, and water supply sources in the basin. The study found that warming in the basin was higher than that in the Tibet Plateau, with high-altitude areas and winter showing more significant warming. From 1998 to 2018, precipitation in the basin showed a trend of fluctuation and decline. The study also found that glacial meltwater accounted for the majority of total runoff in the basin (54.13%), while snow meltwater, rainfall, and baseflow accounted for about 22.98%, 11.84%, and 11.06%, respectively, on average in recent years. The total runoff in the Ranwu Lake Basin will continue to decrease due to the accelerating retreat of glaciers, with the hydrological process transforming from being dominated by glacier processes to rain–snow processes. The study also predicts that three-quarters of glaciers in the basin will vanish within the next forty years, and by 2100, only around 20% of glaciers will remain.

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Section: Hydrological Process Under Future Climate Scenariossupporting

confidence: 69%

Climate Change and Hydrological Response in the Ranwu Lake Basin of Southeastern Tibet Plateau

Cui

Zhu

et al. 2023

Water

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“…Currently, data from experimental small watersheds such as the WE-38 watershed in the United States [23], the ZagoDonka watershed in Poland [24], and China's Wudaogou runoff experimental watershed [25] have contributed significantly to the study of hydrological cycles, the mechanisms of watershed nonpoint source pollution, and other research areas. However, research on the Huashan experimental watershed has mostly focused on surface runoff processes and nitrogen budgets [26,27]. There has been limited attention directed towards the hydrochemical origins of nitrate sources and nitrate's transformation process of water in this region.…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical Evolution and Nitrate Source Identification of River Water and Groundwater in Huashan Watershed, China

Li,

Lin,

Zhang

et al. 2024

Sustainability

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The combined hydrochemical analysis, factor analysis, and isotopic signals of water and nitrate were applied to explore the hydrochemical origin and identify the sources and transformation of nitrate in river water and groundwater in the Huashan watershed. Additionally, a Bayesian isotope mixing model (SIAR) was employed for quantitative assessment of the nitrate sources. The results indicated that both river water and groundwater were dominated by HCO3-Ca and HCO3-Ca·Mg types; both originated from precipitation and were influenced by evaporation. The main constituent ions in the river water and groundwater primarily originated from carbonate and silicate dissolution, with the presence of cation exchange in the groundwater. The water chemistry of river water was greatly influenced by physicochemical factors, while that of groundwater was mainly controlled by water–rock interaction. NO3− in river water was mainly influenced by soil nitrogen (SN) and manure and septic wastes (MSWs), while NO3− in groundwater was jointly affected by ammonium fertilizers (AF), SN, and MSWs. With the exception of denitrification observed in the groundwater at the watershed outlet, denitrification was absent in both groundwater in the piedmont area and in river water. The SIAR model results demonstrated that the contribution rates of atmospheric precipitation (AP), AF, SN, and MSWs to river water were 12%, 21%, 25%, and 42%, respectively, while to groundwater, they were 16%, 27%, 10%, and 47%, respectively. Overall, MSWs were the main sources of nitrate in the river water and groundwater. It is necessary to prevent the leakage of MSWs when managing water resources.

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“…In this regard, physically based watershed-scale hydrological models, such as the Soil and Water Assessment Tool (SWAT) [13], Hydrologic Simulation Program-Fortran (HSPF) [14], and SWAT-Modular Groundwater Flow (SWAT-MODFLOW) model [15], have been essential tools for making decisions on watershed management strategies and policies due to their ability to simulate streamflow and water quality for a wide range of applications [16]. Among them, the SWAT-MODFLOW model is widely used to quantify the impact of water resource management scenarios, climate change and land-use change, and the hydrological cycle on spatiotemporal SW-GW interactions at various regional and watershed scales [15,[17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Hydrological Simulations in Paddy-Dominated Watersheds Using the Hourly SWAT-MODFLOW-PADDY Modeling Approach

et al. 2023

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Accurate hydrological simulations are crucial for managing water resources and promoting sustainable agriculture in submerged paddy agricultural watersheds. The SWAT-MODFLOW, which couples the Soil and Water Assessment Tool (SWAT) and the Modular Groundwater Flow (MODFLOW) model, is a widely used tool for hydrologic simulations that consider surface water and groundwater (SW-GW) interactions. However, it falls short of effectively simulating the hydrological processes of submerged rice paddy field areas. To address this, we developed the hourly SWAT-MODFLOW-PADDY model, which enables integrated surface and groundwater simulations and effectively represents the hydrological responses of submerged paddy fields to high-resolution rainfall data. Our findings demonstrated that the hourly SWAT-MODFLOW-PADDY model could dynamically simulate soil moisture and runoff patterns in submerged paddy fields. Notably, the developed model showed enhanced performance throughout the entire period for hourly flow in the watershed, with an average coefficient of determination (R2) of 0.75, Nash and Sutcliffe efficiency (NSE) of 0.76, and percent bias (PBIAS) of 13.22 compared to the original model (R2 = 0.62, NSE = 0.70, PBIAS = 48.21). The model’s performance in predicting water quality was improved, and it highlighted the significant impact of complex hydrological mechanisms within submerged paddy fields on the spatial distribution of groundwater recharge and stream water volumes exchanged through SW-GW interactions. Given these promising results, the SWAT-MODFLOW-PADDY model could be a valuable resource for managing submerged paddy-dominated agricultural watersheds across various climates and regions.

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Evaluating Spatiotemporal Variations of Groundwater–Surface Water Interaction Using an Integrated Hydrological Model in Huashan Basin, China

Cited by 8 publications

References 31 publications

Climate Change and Hydrological Response in the Ranwu Lake Basin of Southeastern Tibet Plateau

Climate Change and Hydrological Response in the Ranwu Lake Basin of Southeastern Tibet Plateau

Hydrochemical Evolution and Nitrate Source Identification of River Water and Groundwater in Huashan Watershed, China

Enhanced Hydrological Simulations in Paddy-Dominated Watersheds Using the Hourly SWAT-MODFLOW-PADDY Modeling Approach

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