%0 Journal Article
%T Accessibility Index of Aquatic Environments as an Indicator of Surface Water Vulnerability in Urban Areas: Case of the Okpara Basin (Benin)
%A Maurille P. S. Lanmandj¨¨kpogni
%A Fran£¿ois De Paule Codo
%A Babilas Hountondji
%A Benjamin Kouassi Yao
%J Open Journal of Modern Hydrology
%P 103-112
%@ 2163-0496
%D 2019
%I Scientific Research Publishing
%R 10.4236/ojmh.2019.94006
%X <p style=\"text-align:justify;\">
	<span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">Physiographic
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</span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">: </span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">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.</span></span></span><span><span><span> </span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">The
Ganr¨¦ and Kokouro basins 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.</span></span></span>
</p>
%K Accessibility
%K Risk
%K Vulnerability
%K Index
%K Okpara
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=94966