Assessment of Nitrate in Groundwater from Diffuse Sources Considering Spatiotemporal Patterns of Hydrological Systems Using a Coupled SWAT/MODFLOW/MT3DMS Model

IF 3.1 Q2 WATER RESOURCES

Hydrology Pub Date : 2023-11-09 DOI:10.3390/hydrology10110209

Alejandra Correa-González, Joel Hernández-Bedolla, Marco Antonio Martínez-Cinco, Sonia Tatiana Sánchez-Quispe, Mario Alberto Hernández-Hernández

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引用次数: 0

Abstract

In recent years, due to various anthropogenic activities, such as agriculture and livestock, the presence of nitrogen-associated contaminants has been increasing in surface- and groundwater resources. Among these, the main compounds present in groundwater are ammonia, nitrite, and nitrate. However, it is sometimes difficult to assess such effects given the scarcity or lack of information and the complexity of the system. In the current study, a methodology is proposed to assess nitrate in groundwater from diffuse sources considering spatiotemporal patterns of hydrological systems using a coupled SWAT/MODFLOW/MT3DMS model. The application of the model is carried out using a simplified simulation scheme of hydrological and agricultural systems because of the limited spatial and temporal data. The study area includes the Cuitzeo Lake basin in superficial flow form and the Morelia–Querendaro aquifer in groundwater flow form. The results within the methodology are surface runoff, groundwater levels, and nitrate concentrations present in surface- and groundwater systems. The results indicate that the historical and simulated nitrate concentrations were obtained within acceptable values of the statistical parameters and, therefore, are considered adequate.

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基于SWAT/MODFLOW/MT3DMS耦合模型的漫源地下水硝酸盐时空格局评价

近年来，由于各种人为活动，如农业和畜牧业，地表水和地下水资源中氮相关污染物的存在不断增加。其中，地下水中存在的主要化合物是氨、亚硝酸盐和硝酸盐。然而，由于信息稀少或缺乏以及系统的复杂性，有时很难评估这种影响。本研究提出了一种基于SWAT/MODFLOW/MT3DMS耦合水文系统时空模式的扩散源地下水硝酸盐评估方法。由于时空数据有限，模型的应用采用了简化的水文和农业系统模拟方案。研究区包括表层流形态的奎策奥湖盆地和地下水流形态的莫雷里亚-奎伦达罗含水层。该方法的结果是地表径流、地下水位以及地表和地下水系统中硝酸盐的浓度。结果表明，历史和模拟的硝酸盐浓度在统计参数的可接受值范围内获得，因此被认为是足够的。

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来源期刊

Hydrology Earth and Planetary Sciences-Earth-Surface Processes

CiteScore

4.90

自引率

21.90%

发文量

192

审稿时长

6 weeks

期刊介绍： Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences, including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology, hydrogeology and hydrogeophysics. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, ecohydrology, geomorphology, soil science, instrumentation and remote sensing, data and information sciences, civil and environmental engineering are within scope. Social science perspectives on hydrological problems such as resource and ecological economics, sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site. Studies focused on urban hydrological issues are included.

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