Socio-spatial changes in the Koba classified forest in the sub-prefecture of Vavoua (central-western Côte d'Ivoire)

Seidou COULIBALY; N'kpomé Styvince Romaric KOUAO; Giscard Aka ADOU

doi:10.18535/sshj.v8i04.1026

Abstract

The introduction and growth of new tree crops (cashew nuts and rubber trees) in Central and Central-Western Côte d'Ivoire as a result of global warming has exacerbated the state of degradation of the classified forests in these areas. The example of the Koba classified forest, located in the Centre-West, in the Department of Vavoua, is quite edifying. The research objective is to take stock of the spatio-temporal dynamics of the forest cover of this protected area from 1995, the year of the last study carried out by SODEFOR, to 2023. To achieve this objective, the methodology consisted of a multi-date analysis of the forest cover using Landsat optical satellite imagery (Landsat TM 1995, Landsat ETM+ 2010 and Landsat OLI-Tirs 2023) coupled with direct field observation and a questionnaire survey. The questionnaire survey focused on the route method, with 10 localities surveyed and a total population surveyed estimated at 150 people. The results show that between 1995 and 2023, the landscape initially dominated by open forest and dense forest (49%) in 1995 has been replaced by other land-use categories, the most important of which are perennial crops (46%) and mosaics of crops and fallow land (26%) in 2023. Human activities and climatic disturbances are the main determinants of these land cover dynamics.

Keywords

Land use dynamicsmappingKoba classified forestanthropic pressuresocio-spatial changes

References

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[refR-1] Adou Aka giscard , Coulibaly Seidou , Kambire Sambi , Koli Bi Zuéli, 2018 , 'Anthropisation du milieu et dynamique forestière : cas de la forêt classée du Haut-Sassandra (Centre-Ouest de la Côte d'Ivoire) p47Google Scholar ↗

[refR-2] Avakoudjo Julien, Kindomihou Valentin, Sinsin Brice. 2011. Farmers' perception and response to soil erosion when abiotic factors are the driving forces in the Sudanian zone of BeninAgric. Engineering Res. J., 1(2): 20-30.Google Scholar ↗

[refR-3] Bigot Sylvain, Brou Yao , Oszwald Johan, Diedhiou Arona, 2005, Factors in rainfall variability in Côte d'Ivoire and relationships with certain environmental changes. Sécheresse, vol. 16, n° 1, p. 5-13Google Scholar ↗

[refR-4] Diallo Hady, Bamba ssouf, Barima Yao Sadaiou Sabas, Visser Marjolein, Ballo Abdou, Mama Adi, Vranken Isabelle, Maiga Mohamed, Bogaert Jan, 2011, Combined effects of climate and anthropogenic pressures on the evolutionary dynamics of vegetation in a protected area in Mali (Fina Reserve, Boucle du Baoulé). Séch. 22: 97 - 107Google Scholar ↗

[refR-5] Konan Kouassi Eugene, Mafou Combo, Sylla Daouda, Diomande Gondo, Dali Serge Lida ,2019, Modélisation prospective de la déforestation dans le Parc National du Mont Sangbé (Côte d'Ivoire) p7Google Scholar ↗

[refR-6] N'Da Hyppolite Dibi, N'Guessan Edouard Kouakou, WADJA Égnankou and Kouadio Affian, 2008. Apport de la télédétection au suivi de la déforestation dans le Parc national de la Marahoué (Côte d'Ivoire). Téléd. 8 (1): 16 - 34.Google Scholar ↗

[refR-7] Ouattara Tiodionwa; Changes in land occupation and use between 2016 and 2019 in the south-east of Côte d'Ivoire, 2016, impact of cash crops on the forest, p3Google Scholar ↗

[refR-8] Pontius Gilmore Robert, (2000). Comparison of categorical maps. Photogramm. Eng. Remote Sens, 66, 1011-1016.7Google Scholar ↗

[refR-9] SNV. 2004. Plan de Développement Communal de la Commune de Karimama. SNV: Karimama; 88pGoogle Scholar ↗