Karst aquifers supply an important freshwater resource for MENA (Middle East and North Africa) semi-arid regions. Their functioning conditions reveal often several contaminations. The Cheria carbonate aquifer (NE Algeria) has never had management tools to deal with the pollution of this resource. The outlining and protection of the vulnerable areas are essential to ensure the water purity and the consumer health. Based on the EPIK multicriteria analysis method, we aim in our study to assess the karstic aquifers intrinsic-vulnerability to contamination in the Cheria Plateau. This method has been already applied for contamination problems in Northeast Algeria. It uses a conceptual scheme that considers epikarst, protective cover, infiltration, and karst network as parameters. In addition, it also uses the interpolation of the geophysics data to define the conditioning attributes. The resulting vulnerability map categorizes all the basin vulnerable areas and the groundwater protection zones. Nearly 30% of the study area was judged as highly vulnerable to anthropogenic pollution, whereas around 10% is moderately vulnerable. These results confirm that the karst aquifer of the Cheria Plateau is severely polluted by chemical pesticides resulting from farming activity. In addition to the surrounding agricultural lands, the underground of Cheria city was found as extremely vulnerable to pollution (F < 19). Our study delimited boundaries for the karst aquifer protection zones and for an integrated resource management in this region. It recommends applying this method for comparable problems.

中文翻译：

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EPIK多属性方法在半干旱气候条件下岩溶含水层内在脆弱性评估中​​，阿尔及利亚切里高原的情况

岩溶含水层为中东和北非（中东和北非）半干旱地区提供了重要的淡水资源。它们的运行状况通常显示出几种污染。Cheria碳酸盐含水层（NE阿尔及利亚）从未拥有过管理工具来应对这种资源的污染。概述和保护脆弱地区对于确保水的纯度和消费者健康至关重要。基于EPIK多准则分析方法，我们的研究目标是评估岩溶含水层对车里雅高原污染的内在脆弱性。该方法已被应用于阿尔及利亚东北部的污染问题。它使用一种概念方案，将表岩溶，保护层，渗透和岩溶网络视为参数。此外，它还使用地球物理数据的插值来定义条件属性。最终的脆弱性地图将所有流域脆弱区域和地下水保护区分类。大约30％的研究区域被认为极易遭受人为污染，而大约10％的人口属于中等程度的脆弱。这些结果证实，车里雅高原的岩溶含水层被耕作活动产生的化学农药严重污染。除了周围的农业用地以外，还发现了Cheria市的地下极易受到污染（而大约10％的人属于中度脆弱人群。这些结果证实，车里雅高原的岩溶含水层被耕作活动产生的化学农药严重污染。除了周围的农业用地以外，还发现了Cheria市的地下极易受到污染（而大约10％的人属于中度脆弱人群。这些结果证实，车里雅高原的岩溶含水层被耕作活动产生的化学农药严重污染。除了周围的农业用地以外，还发现了Cheria市的地下极易受到污染（F  <19）。我们的研究为该地区的岩溶含水层保护区和综合资源管理划定了界限。对于可比较的问题，建议使用此方法。