[ Dynamique spatio-temporelle des habitats naturels du site Ramsar du complexe Sassandra-Dagbego par télédétection ]
Volume 27, Issue 2, November 2016, Pages 243–249
Kouakou Hervé Kouassi1, Yao Alexis N'GO2, and Ferdinand Gohi Bi ZRO3
1 UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Côte d’Ivoire, BP 150 Daloa, Côte d'Ivoire
2 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Côte d’Ivoire
3 UFR Agroforesterie, Université Jean Lorougnon Guédé, Côte d’Ivoire
Original language: French
Copyright © 2016 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 study is performed on the Ramsar site of Sassandra Dagbego complex that houses important wetlands including the estuary of Sassandra river and mangrove forests. It has for objective to study the state of conservation of this wetland of international importance that is this site Ramsar. Its implementation was made from the exploitation of satellite images at medium resolution (Landsat TM and OLI) and of investigations on the ground. The processing of images on the implementation indices, colorful compositions and supervised classification was used to map land cover in 1986 and 2014 and to analyze the dynamics of natural habitats between the two dates. The results show a dynamic land use characterized by regression over time, mangroves and forests for the benefit of the cultivated and residential areas.
Author Keywords: wetlands, dynamics, Remote sensing, Ramsar, Sassandra.
Volume 27, Issue 2, November 2016, Pages 243–249
Kouakou Hervé Kouassi1, Yao Alexis N'GO2, and Ferdinand Gohi Bi ZRO3
1 UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Côte d’Ivoire, BP 150 Daloa, Côte d'Ivoire
2 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Côte d’Ivoire
3 UFR Agroforesterie, Université Jean Lorougnon Guédé, Côte d’Ivoire
Original language: French
Copyright © 2016 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 study is performed on the Ramsar site of Sassandra Dagbego complex that houses important wetlands including the estuary of Sassandra river and mangrove forests. It has for objective to study the state of conservation of this wetland of international importance that is this site Ramsar. Its implementation was made from the exploitation of satellite images at medium resolution (Landsat TM and OLI) and of investigations on the ground. The processing of images on the implementation indices, colorful compositions and supervised classification was used to map land cover in 1986 and 2014 and to analyze the dynamics of natural habitats between the two dates. The results show a dynamic land use characterized by regression over time, mangroves and forests for the benefit of the cultivated and residential areas.
Author Keywords: wetlands, dynamics, Remote sensing, Ramsar, Sassandra.
Abstract: (french)
La présente étude est réalisée sur le site Ramsar du complexe Sassandra-Dagbego qui abrite d’importants milieux humides dont l’estuaire du fleuve Sassandra et des forêts de mangroves. Elle a pour objectif d’étudier l’état de conservation de cette zone humide d’importance internationale qu’est ce site Ramsar. Sa mise en œuvre a été faite à partir de l’exploitation d’images satellitaires de moyenne résolution (Landsat TM et OLI) et d’investigations sur le terrain. Le traitement des images portant sur la réalisation indices, de compositions colorées et de classification supervisée a permis de cartographier l’occupation du sol en 1986 et en 2014 et d’analyser la dynamique des habitats naturels entre ces deux dates. Les résultats obtenus montrent une dynamique de l’occupation du sol caractérisée par la régression, au fil du temps, de la mangrove et des forêts au profit des aires cultivées et résidentielles.
Author Keywords: Zones humides, dynamique, spatio-temporelle, télédétection, Ramsar, Sassandra.
How to Cite this Article
Kouakou Hervé Kouassi, Yao Alexis N'GO, and Ferdinand Gohi Bi ZRO, “Spatiotemporal dynamics of natural habitats es of the Ramsar site of complex Sassandra-Dagbego by remote sensing,” International Journal of Innovation and Scientific Research, vol. 27, no. 2, pp. 243–249, November 2016.
