[ CARTOGRAPHIE DES FORMES D’ÉROSION HYDRIQUE DANS LA COMMUNE URBAINE D’ATTÉCOUBÉ (ABIDJAN, CÔTE D'IVOIRE) ]
Volume 19, Issue 4, March 2017, Pages 960–968
Brou Etienne N'DRI1, Kadio Hilaire NIAMKE2, Aimé KOUDOU3, and Yao Alexis N'GO4
1 UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Cote d'Ivoire
2 UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Cote d'Ivoire
3 Département des Sciences de l'Environnement, Université Jean Lorougnon Guédé (UJLoG) de Daloa, 02 BP 150 Daloa 02, Côte d'Ivoire
4 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Côte d’Ivoire
Original language: French
Copyright © 2017 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.
The current work aims to map the different forms of erosion which are expressed in the district of Attecoube. From georeferenced aerial photographs and based on the concepts of texture and structure, the different forms of erosion were discriminated on the screen. Many field visits, with tablets, GPS and tape measure (for measurements) allowed checking and adjusting the interpretations made on screen. These high-tech devices were also used for capturing images. Then, we superimposed the erosion forms map at the slopes map of the study area. Three main forms of erosion were revealed: - diffuse erosion covers 14,32% of the study area; - gully erosion which manifest itself on every slope range, covers 66.39% of the Attecoube district; - mass wasting localised, cover only 06.82% of the study area.
Author Keywords: Erosion, Attecoube, aerial photograph, texture, structure, slope.
Volume 19, Issue 4, March 2017, Pages 960–968
Brou Etienne N'DRI1, Kadio Hilaire NIAMKE2, Aimé KOUDOU3, and Yao Alexis N'GO4
1 UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Cote d'Ivoire
2 UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Cote d'Ivoire
3 Département des Sciences de l'Environnement, Université Jean Lorougnon Guédé (UJLoG) de Daloa, 02 BP 150 Daloa 02, Côte d'Ivoire
4 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Côte d’Ivoire
Original language: French
Copyright © 2017 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
The current work aims to map the different forms of erosion which are expressed in the district of Attecoube. From georeferenced aerial photographs and based on the concepts of texture and structure, the different forms of erosion were discriminated on the screen. Many field visits, with tablets, GPS and tape measure (for measurements) allowed checking and adjusting the interpretations made on screen. These high-tech devices were also used for capturing images. Then, we superimposed the erosion forms map at the slopes map of the study area. Three main forms of erosion were revealed: - diffuse erosion covers 14,32% of the study area; - gully erosion which manifest itself on every slope range, covers 66.39% of the Attecoube district; - mass wasting localised, cover only 06.82% of the study area.
Author Keywords: Erosion, Attecoube, aerial photograph, texture, structure, slope.
Abstract: (french)
Le présent travail a pour objectif de cartographier les différentes formes d’érosion qui s’expriment dans la commune d’Attécoubé. A partir de photographies aériennes géoréférencées et en se fondant sur les notions de texture et de structure, nous avons discriminé les différentes formes d’érosion à l’écran. De nombreuses visites sur le terrain, avec des tablettes, GPS et de ruban métrique (pour les caractéristiques métriques), ont permis de vérifier et d’ajuster les interprétations faites à l’écran. Ces appareils de très haute technologie ont aussi permis les prises de vue. Ensuite, nous avons superposé la carte des formes d’érosion à la carte des pentes de la zone d’étude. Trois formes principales d’érosion ont révélées. - L’érosion diffuse occupe 14,32% de la zone d’étude ; - l’érosion de ravinement qui se manifeste sur toutes les gammes de pente occupent 66,39% du territoire de la commune d’Attécoubé ; - les mouvements de masse, localisés ne s’extériorisent que sur 06,82% du territoire d’étude.
Author Keywords: Erosion, Attécoubé, photographie aérienne, texture, structure, pente.
How to Cite this Article
Brou Etienne N'DRI, Kadio Hilaire NIAMKE, Aimé KOUDOU, and Yao Alexis N'GO, “MAPPING OF WATER EROSION FORMS IN THE URBAN DISTRICT OF ATTECOUBE (ABIDJAN, COTE D’IVOIRE),” International Journal of Innovation and Applied Studies, vol. 19, no. 4, pp. 960–968, March 2017.
