Délimitation des zones de protection autour de la retenue du barrage Hachef (Maroc) par télédétection et SIG

Garouani, Abdelkader El; Merzouk, A.

doi:10.7202/012170ar

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…According to [26] the choice of the parameters or criteria must be stopped at seven (7) at the level of hierarchical structure. Thus, the five parameters selected in this method were considered to be the most significant for assessing the surface water supply vulnerability and most used in studies carried out in Côte d'Ivoire by [19], elsewhere by [15] [16]. The establishment of the water reservoir vulnerability map in the study area may contain errors.…”

Section: Discussionmentioning

confidence: 99%

“…This implies the choice of a transfer model in which the slope, soil media, runoff rate and especially land use revealed by the results of single-parameter sensitivity analysis test, are integrated. Then, GIS is a computerized solution for the delineation of protection zone as shown by [16]. It allows a wider and digital knowledge of water resources and their protection [14].…”

Section: Discussionmentioning

confidence: 99%

“…The protection zone 3 protects water resources against mobile and persistent pollutants (hydrocarbons, pesticides ...) [16]. It generally concerns the entire area of watershed located upstream where the pollution risks are obvious [34].…”

Section: Protection Zones Delineation Of Municipal Artificial Lakementioning

confidence: 99%

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Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of Côte d’Ivoire)

Deh¹,

Kouamé²,

Eba³

et al. 2017

JEP

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Adzope's Municipal Artificial Lake which serves as a drinking water supply to the population is prone to pollution due to human activities and increasing urbanization. Thus, it is essential to protect this surface water supply for sustainable use. The objective of this study is to determine the protection zones around this water reservoir in order to preserve the stored water quality. To achieve this, a methodological approach based on a Geographic Information System (GIS) was adopted. This methodological approach first consisted to assess the water reservoir vulnerability to pollution according to certain hydrological parameters (slope, land use, soil type, runoff, and drainage network density) and then to determine the protection zones according to the different vulnerability classes. After the scoring of different parameters, a weight was assigned to each, from the multi-criteria method (AHP). The combination of the weighted parameters in the GIS enabled to establish the water reservoir vulnerability indexes map. The vulnerability map established subsequently presents five (5) vulnerability classes in the watershed: very low (12%) and low (23%) in the North and South of the study area, moderate (32%) disseminated throughout the study area, high (20%) and very high (13%) particularly in the West and North of the water reservoir and in the East of study area. This water reservoir vulnerability map is potentially influenced by the land use parameter according to the sensitivity analysis test. The different vulnerability classes then allowed the delimitation of three protection zones (Zone 1, Zone 2 and Zone 3) around the water reservoir. The immediate protection zone (Zone 1) has a width between 100 and 450 m around the water reservoir with *Geographic Information System for protection zones delineation around a surface water resource.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of Côte d’Ivoire)

Deh¹,

Kouamé²,

Eba³

et al. 2017

JEP

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“…Cette cartographie a été effectuée par l'agrégation de l'ensemble des cartes paramétriques élaborées en format raster avec une taille de 30 x 30 m pour une échelle de 1/500 000. La méthode de calcul utilisée dans le SIG pour la superposition des cartes est l'approche opérationnelle du critère unique de synthèse de Roy (GAROUNI et MERZOUK, 2006). Le principe consiste à additionner les différentes couches selon leur importance.…”

Section: Cartographie Des Zones Potentielles De Recharge De La Nappe De Bonouaunclassified

Cartographie des zones potentielles de recharge de la nappe de Bonoua (sud-est de la Côte d’Ivoire)

Aké

Kouamé

Koffi

et al. 2018

rseau

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Ce travail a pour objectif de déterminer les zones favorables à la recharge de la nappe de Bonoua par approche cartographique et système d’information géographique (SIG). La détermination de ces zones potentielles de recharge de la nappe a nécessité le croisement des informations spatiales relatives aux différents paramètres régissant la recharge qui sont exprimés en cartes thématiques. Une reclassification suivie d’une pondération de ces paramètres a été faite selon leur degré d’implication dans le processus de recharge par l’analyse multicritère Analytical Hierarchy Process (AHP) de Saaty. Ils sont par la suite intégrés dans un SIG afin d’établir la carte des zones potentielles de recharge de la nappe. L’analyse de cette carte a révélé cinq classes, dont une classe de bonne recharge couvrant 66 % de la zone étudiée. Celle-ci est localisée en majorité dans la partie centrale de la nappe, précisément dans le Continental Terminal, constitué principalement de sables grossiers avec des pentes relativement faibles où le sol est occupé par des cultures industrielles. Les zones de faible recharge (34 % de la zone étudiée) sont localisées sur les bordures ouest et est de la zone d’étude sur les sols hydromorphes. Cette carte de répartition spatiale de la recharge peut être considérée comme un support d’aide à la décision, notamment pour la gestion de la ressource en eau et l’analyse de la vulnérabilité des eaux souterraines. Les zones de recharge préférentielle méritent une attention particulière des autorités par l’instauration de mesures de protection.

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“…The calculation method used in GIS for the combination of maps is the operational approach of Roy's synthesis unique criterion (Garouni & Merzouk, 2006).…”

Section: Cartography Of the Potential Aquifers Recharge Areas Of The mentioning

confidence: 99%

Cartography for the Aquifer Potential Recharge Areas of the Base of the Department of Aboisso (South-East Cote d’Ivoire)

Aké¹,

Kouamé²,

Fofana³

et al. 2019

GEP

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The study highlights the potential recharge areas of the aquifers of the Department of Aboisso for an adequate and rational management of their use. The methodology used consisted in the identification of parameters (land use, soil types, drainage density, slope, induced permeability and alteration thickness) allowing infiltration and their expression as thematic maps. A weighting of these parameters was made by the multicriteria analysis method of Saaty. The integration to GIS conducted to elaborate the map of the potential recharge area of the aquifers for the Department of Aboisso. It brings to light five recharge level classes (bad: 20%; mediocre: 19%, medium: 45%; good: 15% and very good: 1%) in the study area. That map reveals the dominance of good recharge areas covering 61% and practically all over the studied area. They are generally characterized with gentle slopes coupled with mosaics of cultivations and forests, and high induced permeability allowing better infiltration. The zones of low recharge cover 39% of the department's area, and are mainly located in urban areas inside the streams. This study exhibited that the land use is the preponderant parameter influencing the recharge in base area. This map could be considered as an excellent support for all kinds of activities especially to implement planning in the Department of Aboisso, the setting up of drilling broadbands and the choice of future sites for landfills or landfill of wastes to protect groundwater from any pollution.

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Délimitation des zones de protection autour de la retenue du barrage Hachef (Maroc) par télédétection et SIG

Cited by 6 publications

References 4 publications

Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of Côte d’Ivoire)

Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of Côte d’Ivoire)

Cartographie des zones potentielles de recharge de la nappe de Bonoua (sud-est de la Côte d’Ivoire)

Cartography for the Aquifer Potential Recharge Areas of the Base of the Department of Aboisso (South-East Cote d’Ivoire)

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Délimitation des zones de protection autour de la retenue du barrage Hachef (Maroc) par télédétection et SIG

Cited by 6 publications

References 4 publications

Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of C&#244;te d’Ivoire)

Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of C&#244;te d’Ivoire)

Cartographie des zones potentielles de recharge de la nappe de Bonoua (sud-est de la Côte d’Ivoire)

Cartography for the Aquifer Potential Recharge Areas of the Base of the Department of Aboisso (South-East Cote d’Ivoire)

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Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of Côte d’Ivoire)

Contribution of Geographic Information Systems in Protection Zones Delineation around a Surface Water Resource in Adzope Region (Southeast of Côte d’Ivoire)