Development of suitability map for managed aquifer recharge: case study, West Delta, Egypt

IF 2.1 4区 环境科学与生态学 Q2 ENGINEERING, CIVIL
Heba Mohamed Hani, Mohamed M. Nour El Din, A. Khalifa, Ezzat Elalfy
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Abstract

Managed aquifer recharge (MAR) is considered an innovative method for storing water in the subsurface. In this work, multi-criteria decision analysis (MCDA) was used to delineate potential groundwater recharge areas for MAR implementation in Western Delta using reclaimed wastewater. By employing geographical information systems (GIS) and pairwise comparison matrix (PCM), a modified approach was utilized for the development of the suitability map by capturing the interlinkages between a specified MAR technique (spreading methods) and MAR suitability mapping processes. The developed approach was created with a range of constraining and factorial considerations. Based on the findings, MAR potential recharge zones included four main suitability classes. The presence of high-suitability areas was mainly delineated in the northeast part, particularly around the left side of the Nile River valley. Areas of low suitability were located around the west-north side where the hydrological criterion seems to hinder the implementation due to the low productivity of the hydrogeologic layer. The developed methodology reflected the importance of specific determining factors (i.e., slope and depth to depth to the water table) that govern the successful implementation of infiltration basins and maximize the benefits from soil aquifer treatments effects when taken into account with other hydrogeological and socio-economic variables.
开发含水层补给管理的适宜性图:案例研究,埃及西三角洲
含水层管理补给(MAR)被认为是地下蓄水的一种创新方法。在这项工作中,采用多准则决策分析(MCDA)来划定西部三角洲利用再生废水实施MAR的潜在地下水补给区。利用地理信息系统(GIS)和配对比较矩阵(PCM),通过捕捉特定的MAR技术(传播方法)与MAR适宜性制图过程之间的相互联系,采用一种改进的方法来开发适宜性图。开发的方法是在考虑了一系列约束和因子的情况下创建的。根据研究结果,MAR潜在补给区包括四个主要的适宜性等级。高适宜性区主要分布在东北部,尤其是尼罗河流域左侧。低适宜性区域位于西北侧附近,由于水文地质层的低生产力,水文标准似乎阻碍了实施。所制订的方法反映了具体的决定因素(即地下水位的坡度和纵深)的重要性,这些因素在考虑到其他水文地质和社会经济变量的情况下,决定了渗透盆地的成功实施和土壤含水层处理效果的最大效益。
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来源期刊
CiteScore
4.10
自引率
21.10%
发文量
0
审稿时长
20 weeks
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