[ Cartographie de danger et de risque de contamination des eaux de surface du bassin versant du Barrage de l’Oued Martil ]
Volume 25, Issue 4, March 2019, Pages 1437–1446
Layla Herhar1, Jamal Stitou El Messari2, and Mohamed Draoui3
1 Department of Geology, University Abdelmalek Essaadi, Faculty of Sciences, Tétouan, Morocco
2 Department of Geology, University Abdelmalek Essaadi, Faculty of Sciences, Tétouan, Morocco
3 Département des sciences de la matière et de la vie, Ecole Normale Supérieure, Université Abdel Malek Essaâdi, Tétouan, Morocco
Original language: French
Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objectives of this article is to put at the disposal of the administrators a risk map for the contamination of surface waters in the watershed of the Oued Martil dam, allowing them to reduce the possible damages susceptible to affect them as a result of a poor management due to the lack of information. Such a map is the result of the superposition of vulnerability maps in the contamination of superficial waters and that of the danger map. The contamination danger map of the watershed of the Oued Martil dam lets appear the "Low" class correlative to the activities of the agriculture, Douars, careers, oil-works and the road, represents a percentage of 50,27%. Almost the same percentage is attributed to the very low "class"; this one coincides with the main valley and the unwooded grounds (naked lands). These two classes are ill-assorted throughout the study area. The considered contamination vulnerability map in this study is that elaborated following the application of DKPR method, considering the natural characteristics of the environment having an effect on the contamination of surface waters. About the contamination risk map of the studied dam shows the predominance of the low degree classes which extend more than 98 % of the surface of the concerned watershed. They reflect the low effect of the anthropological activities distributed on the surface of our watershed on the waters contamination.
Author Keywords: watershed Martil’s river dam, Danger map, Vulnerability map, Risk map, GIS.
Volume 25, Issue 4, March 2019, Pages 1437–1446
Layla Herhar1, Jamal Stitou El Messari2, and Mohamed Draoui3
1 Department of Geology, University Abdelmalek Essaadi, Faculty of Sciences, Tétouan, Morocco
2 Department of Geology, University Abdelmalek Essaadi, Faculty of Sciences, Tétouan, Morocco
3 Département des sciences de la matière et de la vie, Ecole Normale Supérieure, Université Abdel Malek Essaâdi, Tétouan, Morocco
Original language: French
Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Objectives of this article is to put at the disposal of the administrators a risk map for the contamination of surface waters in the watershed of the Oued Martil dam, allowing them to reduce the possible damages susceptible to affect them as a result of a poor management due to the lack of information. Such a map is the result of the superposition of vulnerability maps in the contamination of superficial waters and that of the danger map. The contamination danger map of the watershed of the Oued Martil dam lets appear the "Low" class correlative to the activities of the agriculture, Douars, careers, oil-works and the road, represents a percentage of 50,27%. Almost the same percentage is attributed to the very low "class"; this one coincides with the main valley and the unwooded grounds (naked lands). These two classes are ill-assorted throughout the study area. The considered contamination vulnerability map in this study is that elaborated following the application of DKPR method, considering the natural characteristics of the environment having an effect on the contamination of surface waters. About the contamination risk map of the studied dam shows the predominance of the low degree classes which extend more than 98 % of the surface of the concerned watershed. They reflect the low effect of the anthropological activities distributed on the surface of our watershed on the waters contamination.
Author Keywords: watershed Martil’s river dam, Danger map, Vulnerability map, Risk map, GIS.
Abstract: (french)
L’objectif de cet article est de mettre à la disposition des gestionnaires la carte de risque à la contamination des eaux de surface du bassin versant du barrage de l’Oued Martil leur permettant de réduire les dégâts possibles susceptible de les atteindre suite à une mal gérance due au manque d’information. Une telle carte est le résultat de la superposition des cartes de vulnérabilité à la contamination des eaux superficielles et celle de la carte de danger. La carte de danger de contamination du bassin versant du barrage de l’Oued Martil laisse apparaître la classe « Faible » corrélative aux activités de l’agriculture, les douars, les carrières, les huileries et la route, représente un pourcentage de 50,27%. Presque le même pourcentage est attribué à la classe « Très faible » ; celle-ci coïncide avec les principaux oueds et les terrains non boisés (terrains nus). Ces deux classes sont disparates dans la totalité de la zone d’étude. La carte de vulnérabilité à la contamination prise en considération dans cette étude est celle élaborée suite à l’application de la méthode DKPR, prenant en considération les caractéristiques naturelles du milieu ayant un effet sur la contamination des eaux de surface. Quant à la carte de risque de contamination du barrage étudié montre la prédominance des classes de faible degré qui s’étend sur plus de 98% de la surface du bassin versant concerné. Elles reflètent le faible effet des activités anthropiques réparties sur la surface de notre bassin versant sur la contamination des eaux.
Author Keywords: Bassin versant du barrage de l’Oued Martil, Carte de Danger, Carte de Vulnérabilité, Carte de Risque, SIG.
How to Cite this Article
Layla Herhar, Jamal Stitou El Messari, and Mohamed Draoui, “Mapping the danger and risk of surface water contamination in the river Martil Watershed,” International Journal of Innovation and Applied Studies, vol. 25, no. 4, pp. 1437–1446, March 2019.
