[ Qualité bactériologique des eaux du bassin versant de l’oued Inaouene en amont du barrage Idriss Ier (NE du Maroc) ]
Volume 31, Issue 1, November 2020, Pages 67–78
Mohamed Ben Abbou1, Loubna Bougarne2, and Mounia El Haji3
1 Laboratoire d'Ecologie Fonctionnelle et Environnement, Faculté des Sciences et Techniques, Fès 30000, Morocco
2 Laboratoire des Ressources Naturelles et Environnement, Faculté Polydisciplinaire de Taza, B.P. 1223 Taza Gare, Morocco
3 Laboratoire des Ressources Naturelles et Environnement, Faculté Polydisciplinaire de Taza, B.P. 1223 Taza Gare, Morocco
Original language: French
Copyright © 2020 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.
This present study was conducted during the period 2010-2012. The scope of this study was the characterization of the biological of surface quality in the Inaouen catchment. Also, we focused on the identification of any existing pollutants into its waters and their origins. For this, we have, on the one hand, the study area bounded to 26 stations for surface water and directed the spatio-temporal monitoring of bacteriological for two years (November 2010 - October 2012). The analysis results revealed a spatio-temporal difference between the two sides of Inaouen watershed, following the intervention of natural and anthropogenic factors. Over time, the waters of the Oued Inaouen enrich gradually with fecal contamination tests germs. This state of pollution is greater downstream in the stations that receive more releases. This is most often related to untreated domestic and industrial waters (especially liquid olive mill wastes OMW) discharged into rivers, and agricultural runoff which is a result of fertilizer use especially in summer and autumn. Besides the germs tests of faecal contamination. This pollution effect is greater in downstream stations that receive more releases. In addition to this fact, the climatic conditions of the region are characterized by very low flows wadis in upstream during the summer season.
Author Keywords: Oued Watershed of Inaouen, surface water, microbiological quality, faecal contamination, spatio-temporal.
Volume 31, Issue 1, November 2020, Pages 67–78
Mohamed Ben Abbou1, Loubna Bougarne2, and Mounia El Haji3
1 Laboratoire d'Ecologie Fonctionnelle et Environnement, Faculté des Sciences et Techniques, Fès 30000, Morocco
2 Laboratoire des Ressources Naturelles et Environnement, Faculté Polydisciplinaire de Taza, B.P. 1223 Taza Gare, Morocco
3 Laboratoire des Ressources Naturelles et Environnement, Faculté Polydisciplinaire de Taza, B.P. 1223 Taza Gare, Morocco
Original language: French
Copyright © 2020 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
This present study was conducted during the period 2010-2012. The scope of this study was the characterization of the biological of surface quality in the Inaouen catchment. Also, we focused on the identification of any existing pollutants into its waters and their origins. For this, we have, on the one hand, the study area bounded to 26 stations for surface water and directed the spatio-temporal monitoring of bacteriological for two years (November 2010 - October 2012). The analysis results revealed a spatio-temporal difference between the two sides of Inaouen watershed, following the intervention of natural and anthropogenic factors. Over time, the waters of the Oued Inaouen enrich gradually with fecal contamination tests germs. This state of pollution is greater downstream in the stations that receive more releases. This is most often related to untreated domestic and industrial waters (especially liquid olive mill wastes OMW) discharged into rivers, and agricultural runoff which is a result of fertilizer use especially in summer and autumn. Besides the germs tests of faecal contamination. This pollution effect is greater in downstream stations that receive more releases. In addition to this fact, the climatic conditions of the region are characterized by very low flows wadis in upstream during the summer season.
Author Keywords: Oued Watershed of Inaouen, surface water, microbiological quality, faecal contamination, spatio-temporal.
Abstract: (french)
Le présent travail, est le fruit d’une étude qui s’est étalée sur la période 2010–2012, dont l’objectif est de déterminer la qualité microbiologique des eaux de surface du bassin versant de l’Oued Inaouen, d’identifier les éventuels polluants existants dans ces eaux et leurs origines. Pour cela, nous avons, d’une part, délimité la zone d’étude à 26 stations pour les eaux de surface et réalisé le suivi spatio-temporel des paramètres bactériologiques pendant deux ans (Novembre 2010 - Octobre 2012). Les résultats des analyses ont fait ressortir une différentiation spatio-temporelle, le long du bassin versant de l’Oued Inaouen, à la suite d’intervention des facteurs naturels et anthropiques. Au fil du temps, les eaux de surface de l’Oued Inaouen s’enrichissent progressivement en germes tests de contamination fécale. Cet état de pollution est plus marqué en aval, dans les stations qui reçoivent plus de rejets. A cela se sont ajoutées les conditions climatiques de la région, qui se caractérisent par des débits des Oueds en amont très faibles à sec durant la saison d’été. L’origine de cette pollution est liée aux rejets ménagers et industriels (surtout les margines) déversés sans traitement dans les cours d’eau, et au lessivage des terres agricoles, à la suite de l’utilisation des engrais, avec un enrichissement d’autant plus important en été et en automne.
Author Keywords: Bassin versant d’Inaouen, Eaux de surface, qualité microbiologique, contamination fécale, spatio-temporelle.
How to Cite this Article
Mohamed Ben Abbou, Loubna Bougarne, and Mounia El Haji, “Bacteriological quality of the waters of the Oued Inaouene watershed upstream of the Idriss Ist dam (NE of Morocco),” International Journal of Innovation and Applied Studies, vol. 31, no. 1, pp. 67–78, November 2020.
