Accessibility Index of Aquatic Environments as an Indicator of Surface Water Vulnerability in Urban Areas: Case of the Okpara Basin (Benin)

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AuteurLANMANDJEKPOGNI, PAUL
AuteurCODO, FRANCOIS DE PAULE EMILE
AuteurHOUNTONDJI, BABILAS
AuteurYAO, BENJAMIN K
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2019
ResumePhysiographic differences and conditions of use of water resources in anthropogenic basins explain the variability of risk to surface water. Based on the multi-criteria analysis of Saaty, the present work proposes an assessment of the vulnerability of surface water through a three-factor accessibility index: the slope, the subdivision rate and the drainage density of the basin. It is observed that the topographic (slope) and urbanistic (subdivision) conditions are the most important (weighting of 59%, 34%) in front of the hydrographic condition (drainage 6%) with an overall consistency of 2%. Thus, in the Okpara basin in the city of Parakou, the analysis of the vulnerability of surface waters by the accessibility index highlights two groups. The Ganré and Kokourobasins with about 30% of their areas in the low and moderate classes and the Wonka and Dama basins in the very strong class at more than 50% of their areas.
DOI10.4236/ojmh.2019.94006
Autre identifiantBECDB-8765
URIhttps://dspace.uac.bj/handle/123456789/7871
Languefr
Fait partie deOpen Journal of Modern Hydrology
SujetAccessibility
SujetRisk
Sujetvulnerability
Sujetindex
SujetOkpara
TitreAccessibility Index of Aquatic Environments as an Indicator of Surface Water Vulnerability in Urban Areas: Case of the Okpara Basin (Benin)
TypeArticle

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