Evaluation de la vulnérabilité de l’eau souterraine basée sur un modèle DRASTIC modifié, sur un SIG et une procédure analytique hiérarchisée (AHP) : le cas du bassin du Lac Egirdir (Isparta, Turquie) Evaluación de la vulnerabilidad del agua subterránea basada en un modelo DRASTIC modificado, SIG y el método del proceso jerárquico analítico (AHP): el caso de la cuenca del lago Egirdir (Isparta, Turquía) 基于改进的DRASTIC模型以及GIS和层次分析法(AHP)的地下水脆弱性评价:土耳其伊斯帕尔塔Egirdir湖盆案例 Avaliação da vulnerabilidade da água subterrânea baseada num modelo DRASTIC modificado, SIG e um processo analítico hierárquico (PAH): o caso da bacia do Lago Egirdir (Isparta, Turquia) Modifiye DRASTIC, CBS ve AHS Yöntemleri ile Yeraltısuyu Kirlenebilirliğinin Değerlendirilmesi: Eğirdir Gölü Havzası Örneği (Isparta, Türkiye)

Sener, Erhan; Davraz, Aysen

Evaluation de la vulnérabilité de l’eau souterraine basée sur un modèle DRASTIC modifié, sur un SIG et une procédure analytique hiérarchisée (AHP) : le cas du bassin du Lac Egirdir (Isparta, Turquie) Evaluación de la vulnerabilidad del agua subterránea basada en un modelo DRASTIC modificado, SIG y el método del proceso jerárquico analítico (AHP): el caso de la cuenca del lago Egirdir (Isparta, Turquía) 基于改进的DRASTIC模型以及GIS和层次分析法(AHP)的地下水脆弱性评价:土耳其伊斯帕尔塔Egirdir湖盆案例 Avaliação da vulnerabilidade da água subterrânea baseada num modelo DRASTIC modificado, SIG e um processo analítico hierárquico (PAH): o caso da bacia do Lago Egirdir (Isparta, Turquia) Modifiye DRASTIC, CBS ve AHS Yöntemleri ile Yeraltısuyu Kirlenebilirliğinin Değerlendirilmesi: Eğirdir Gölü Havzası Örneği (Isparta, Türkiye) | Assessment of groundwater vulnerability based on a modified DRASTIC model, GIS and an analytic hierarchy process (AHP) method: the case of Egirdir Lake basin (Isparta, Turkey)

2013

Sener, Erhan | Davraz, Aysen

A DRASTIC-model method based on a geographic information system (GIS) was used to study groundwater vulnerability in Egirdir Lake basin (Isparta, Turkey), an alluvial area that has suffered agricultural pollution. ‘Lineament’ and ‘land use’ were added to the DRASTIC parameters, and an analytic hierarchy process (AHP) method determined the rating coefficients of each parameter. The effect of lineament and land-use parameters on the resulting vulnerability maps was determined with a single-parameter sensitivity analysis. Of the DRASTIC parameters, land use affects the aquifer vulnerability map most and lineament affects it least, after topography. A simple linear regression analysis assessed the statistical relation between groundwater nitrate concentration and the aquifer vulnerability areas; the highest R ² value was obtained with the modified-DRASTIC-AHP method. The DRASTIC vulnerability map shows that only the shoreline of Egirdir Lake and the alluvium units have high contamination potential. In this respect, the modified DRASTIC vulnerability map is quite similar. According to the modified-DRASTIC-AHP method, the lakeshore areas of Senirkent-Uluborlu and Hoyran plains, and all of the Yalvaç-Gelendost plain, have high contamination potential. Analyses confirm that groundwater nitrate content is high in these areas. By comparison, the modified-DRASTIC-AHP method has provided more valid results.

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