[ Evaluation de l’impact de l’urbanisation sur les ressources végétales de la commune de Bingerville à l’horizon 2040: Contribution de la géomatique ]
Volume 68, Issue 1, August 2023, Pages 10–23
Sako Mariétou Diarra1, Adonis Krou Damien KOUAME2, and N’Da Hyppolite Dibi3
1 Centre Universitaire de Recherche et d’Application en Télédétection, Université Félix Houphouët-Boigny, UFR STRM, Abidjan, Côte d’Ivoire
2 Centre Universitaire de Recherche et d’Application en Télédétection (CURAT), Université Félix Houphouët Boigny, Côte d’Ivoire
3 Centre Universitaire de Recherche et d’Application en Télédétection, Université Félix Houphouët-Boigny, UFR STRM, Abidjan, Côte d’Ivoire
Original language: French
Copyright © 2023 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.
Côte d’Ivoire, like most African countries, is suffering the full force of the phenomenon of urban sprawl, which in its manifestation causes many environmental problems. In Bingerville, the gradual disappearance of plant resources in favor of ever-increasing urbanization and the problems posed by the cohabitation of man and nature raise questions. The objective of this work is to analyze the environmental changes linked to urban dynamics in the commune of Bingerville using remote sensing and GIS and to model changes in land use in order to assess the impact of urban sprawl on the plant resources of Bingerville by 2040. The methodological approach focused first on the processing of multispectral and multidate Landsat images: 1989 ETM, 1999 ETM, 2008 ETM+, 2016 and 2020 OLI TIRS for the analysis of the spatio-temporal dynamics of land cover and a modeling of land cover in 2040 using the CA_Markov model. From 1989 to 2020, the area of urban stain has increased from 8% to 39%, the vegetation registers during the same period a regression of its area by -3.06%. The results of the modeling of land use changes by 2040 confirm the trends illustrated by the classification results, the «built-up» class will be the most important land use unit with 49.49%, while vegetation will represent only 10.69% of the total area of the city. The agglomeration of the urban municipality of Bingerville is a perfect illustration of the constraint that urban dynamics exerts on the vegetation cover.
Author Keywords: Urban sprawl, vegetation, land use, modelling, remote sensing, GIS.
Volume 68, Issue 1, August 2023, Pages 10–23
Sako Mariétou Diarra1, Adonis Krou Damien KOUAME2, and N’Da Hyppolite Dibi3
1 Centre Universitaire de Recherche et d’Application en Télédétection, Université Félix Houphouët-Boigny, UFR STRM, Abidjan, Côte d’Ivoire
2 Centre Universitaire de Recherche et d’Application en Télédétection (CURAT), Université Félix Houphouët Boigny, Côte d’Ivoire
3 Centre Universitaire de Recherche et d’Application en Télédétection, Université Félix Houphouët-Boigny, UFR STRM, Abidjan, Côte d’Ivoire
Original language: French
Copyright © 2023 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
Côte d’Ivoire, like most African countries, is suffering the full force of the phenomenon of urban sprawl, which in its manifestation causes many environmental problems. In Bingerville, the gradual disappearance of plant resources in favor of ever-increasing urbanization and the problems posed by the cohabitation of man and nature raise questions. The objective of this work is to analyze the environmental changes linked to urban dynamics in the commune of Bingerville using remote sensing and GIS and to model changes in land use in order to assess the impact of urban sprawl on the plant resources of Bingerville by 2040. The methodological approach focused first on the processing of multispectral and multidate Landsat images: 1989 ETM, 1999 ETM, 2008 ETM+, 2016 and 2020 OLI TIRS for the analysis of the spatio-temporal dynamics of land cover and a modeling of land cover in 2040 using the CA_Markov model. From 1989 to 2020, the area of urban stain has increased from 8% to 39%, the vegetation registers during the same period a regression of its area by -3.06%. The results of the modeling of land use changes by 2040 confirm the trends illustrated by the classification results, the «built-up» class will be the most important land use unit with 49.49%, while vegetation will represent only 10.69% of the total area of the city. The agglomeration of the urban municipality of Bingerville is a perfect illustration of the constraint that urban dynamics exerts on the vegetation cover.
Author Keywords: Urban sprawl, vegetation, land use, modelling, remote sensing, GIS.
Abstract: (french)
La Côte d’Ivoire comme la plupart des pays africains subit de plein fouet le phénomène de l’étalement urbain qui dans sa manifestation engendre de nombreux désagréments sur le plan environnemental. A Bingerville, la disparition progressive des ressources végétales au profit de l’urbanisation de plus en plus croissante suscite des interrogations. L’objectif de ce travail est d’analyser les mutations environnementales à l’aide de la télédétection et des SIG et modéliser les changements d’occupation du sol afin d’évaluer l’impact de l’étalement urbain sur les ressources végétales à l’horizon 2040. La classification supervisée des images multispectrales et multidates de Landsat: 1989 ETM, 1999 ETM, 2008 ETM+, 2016 et 2020 OLI TIRS a permis de faire l’analyse de la dynamique spatio-temporelle de l’occupation du sol. La modélisation de l’occupation du sol à l’horizon 2040 a été effectuée à l’aide du modèle CA_Markov. Les résultats de la classification montrent que de 1989 à 2020, la superficie de la tâche urbaine est passée de 8% à 39%. La végétation enregistre pendant la même période une régression de sa superficie de -3.06%. La modélisation de l’occupation du sol à l’horizon 2040 confirme les tendances illustrées par les résultats de la classification. Ainsi, la classe « bâti » sera l’unité d’occupation du sol la plus importante avec 49.49% alors que la végétation ne représentera plus que 10.69% de la superficie totale de la ville. L’agglomération de la commune urbaine de Bingerville est une illustration parfaite de la contrainte qu’exerce la dynamique urbaine sur le couvert végétal.
Author Keywords: Etalement urbain, végétation, occupation du sol, modélisation, télédétection, SIG.
How to Cite this Article
Sako Mariétou Diarra, Adonis Krou Damien KOUAME, and N’Da Hyppolite Dibi, “Contribution of geomatics in the assessment of the impact of urbanization on Bingerville municipality’s plant resources by 2040,” International Journal of Innovation and Scientific Research, vol. 68, no. 1, pp. 10–23, August 2023.
