Comparative analysis of EPIK, DRASTIC, and DRASTIC-LUC methods for groundwater vulnerability assessment in karst aquifers of the Western Amazon Basin

IF 2.8 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Environmental Earth Sciences Pub Date : 2025-01-22 DOI:10.1007/s12665-024-12048-5

Elizabeth Naranjo, Bruno Conicelli, Gabriel Massaine Moulatlet, Ricardo Hirata

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引用次数: 0

Abstract

Karst aquifers are highly vulnerable to contamination due to their unique hydrogeological characteristics and increasing anthropogenic pressures. Given the challenges and costs associated with remediation, this study evaluates the groundwater vulnerability of karst formations in the Western Amazon Basin using three assessment methods: EPIK, DRASTIC, and DRASTIC-LUC. Geospatial data and sensitivity analysis were employed to assess the Napo Karst Formation. The results show that DRASTIC and EPIK classified 45.76% and 35.38% of the area as highly vulnerable, while DRASTIC-LUC classified 57.47% as moderately vulnerable. Sensitivity analysis identified depth to the water table and infiltration conditions as the most critical factors influencing vulnerability. The moderate-to-high vulnerability observed raises concerns about the risks to both surface and groundwater resources, which local populations heavily depend on. This study provides a valuable baseline for future research and offers essential guidance for decision-makers to mitigate activities that could degrade water quality in the Western Amazon Basin.

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EPIK、DRASTIC和DRASTIC- luc方法在亚马逊盆地西部喀斯特含水层地下水脆弱性评价中的比较分析

喀斯特含水层由于其独特的水文地质特征和不断增加的人为压力，极易受到污染。考虑到与修复相关的挑战和成本，本研究使用EPIK、DRASTIC和DRASTIC- luc三种评估方法评估了西亚马逊盆地喀斯特地层的地下水脆弱性。利用地理空间数据和敏感性分析对纳坡岩溶组进行了评价。结果表明：DRASTIC方法和EPIK方法分别将45.76%和35.38%的区域划分为高度脆弱区，DRASTIC- luc方法将57.47%的区域划分为中等脆弱区。敏感性分析表明，地表深度和入渗条件是影响脆弱性的最关键因素。观察到的中度至高度脆弱性引起了人们对当地人口严重依赖的地表水和地下水资源风险的担忧。该研究为未来的研究提供了有价值的基线，并为决策者提供了必要的指导，以减轻可能导致西亚马逊流域水质恶化的活动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Earth Sciences 环境科学-地球科学综合

CiteScore

5.10

自引率

3.60%

发文量

494

审稿时长

8.3 months

期刊介绍： Environmental Earth Sciences is an international multidisciplinary journal concerned with all aspects of interaction between humans, natural resources, ecosystems, special climates or unique geographic zones, and the earth: Water and soil contamination caused by waste management and disposal practices Environmental problems associated with transportation by land, air, or water Geological processes that may impact biosystems or humans Man-made or naturally occurring geological or hydrological hazards Environmental problems associated with the recovery of materials from the earth Environmental problems caused by extraction of minerals, coal, and ores, as well as oil and gas, water and alternative energy sources Environmental impacts of exploration and recultivation – Environmental impacts of hazardous materials Management of environmental data and information in data banks and information systems Dissemination of knowledge on techniques, methods, approaches and experiences to improve and remediate the environment In pursuit of these topics, the geoscientific disciplines are invited to contribute their knowledge and experience. Major disciplines include: hydrogeology, hydrochemistry, geochemistry, geophysics, engineering geology, remediation science, natural resources management, environmental climatology and biota, environmental geography, soil science and geomicrobiology.