GIS-based multi-criteria analysis and vulnerability method for the potential groundwater recharge delineation, case study of Manouba phreatic aquifer, NE Tunisia
GIS-based multi-criteria analysis and vulnerability method for the potential groundwater recharge delineation, case study of Manouba phreatic aquifer, NE Tunisia
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基于 GIS 的潜在地下水补给划定的多标准分析和脆弱性方法，突尼斯东北部马努巴潜水层案例研究
DOI：
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发表时间：
2017
影响因子：
2.8
通讯作者：
B. Anselme
中科院分区：
文献类型：
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作者：
S. Saidi;S. Hosni;H. Mannai;F. Jelassi;S. Bouri;B. Anselme
在半干旱气候下，如马努巴地区（突尼斯北部）的地下水资源在数量和质量上都出现了退化。管理人员和水务工程师开发了技术来补偿高开采量并补救地下水资源的质量差。最重要的解决办法之一是注重含水层的补给能力。本文的目的是使用多准则方法定位潜在的地下水补给区。地下水潜在补给区的划定依赖于物理参数和地下水脆弱性。地理信息系统可提供处理用于每一参数的多学科数据的工具。在这项工作中，权重系数归属的参数分配的基础上，在该地区的本地条件，使用层次分析法，通过应用智能决策系统软件。结果表明，大部分研究区的地下水补给率可能是中等到高。只有24%的研究区域地下水补给率较低，特别是在Sebkhat Essijoumi及其附近，主要与渗透性最差的丘陵地区相匹配。考虑到污染的脆弱性和潜在的地下水补给能力，最合适的补给地点位于研究区的西北部。
Groundwater resources in semi-arid climate like Manouba region (North of Tunisia) have experienced deterioration of available water resources in terms of both quantity and quality. Managers and water engineers developed techniques to compensate for the high exploitation and remedy the poor quality of groundwater resources. One of the most important solutions is to focus on the recharge capacity of the aquifer. This paper aims to locate potential groundwater recharge areas using the multi-criteria approach. Delineation of groundwater potential recharge zones relies on physical parameters and groundwater vulnerability. Geographical information system can provide tools for handling multidisciplinary data used for each parameter. In this work, weighting coefficients attributed for parameters are assigned based on local conditions in the region, using the analytic hierarchy process by applying the intelligent decision system software. Results show that most of the study area has a groundwater recharge rate potentially moderate to high. Only 24% of the study area have low groundwater recharge rate located especially in Sebkhat Essijoumi and its vicinity, that mainly match to the least permeable and hilly areas. Considering both the vulnerability to pollution and the potential groundwater recharge capacity, the most suitable recharge sites are located in the North West of the study area.