IMPACTS DE L'EXPLOITATION DU GISEMENT DE CALCAIRES DE TABLIGBO AU SUD-EST TOGO SUR LA FLORE

Abstract : The exploitation of the apron limestone trade in the south-east is at the origin of the destruction of the plant cover and contributes to the loss of biodiversity. This study to achieve the purpose of the impact of limestone’s extraction on the flora of the study area. It relied on floristic inventories on exploited sites and non-exploited site. The collected data were processed by the Excel program and in the R environment. In total, a rich flora of 152 species has been recorded, including 114 species with 99 genera and 45 families on non-exploited site in contradiction of 82 species with 66 genera and 34 families in exploited sites. The Shannon diversity indices are respectively 3.24 and 3.37 on the exploited and non-exploited sites. The Pielou equitability index is 0.99 at all sites. The analysis of biologic spectra chow the domination of nanophanerophytes and microphanerophytes (41.5 %) on the non-exploited site in contradiction of the therophytes (39.29 %) on the exploited sites. The analysis of phytogeographic spectra indicates the dominance of afro-tropical species (43.40 % on non-exploited site and 41.18 % on exploited sites).These results show that the exploitation of the Tabligo’s limestone deposit had a negative impact on the flora.
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Aboudala Sidi Issah, Minkilabe Djangbedja, Thiou Tanzidani K. Tchamie. IMPACTS DE L'EXPLOITATION DU GISEMENT DE CALCAIRES DE TABLIGBO AU SUD-EST TOGO SUR LA FLORE. Notes Scientifiques, Homme et Société, Faculté des Sciences de l’Homme et de la Société, Université de Lomé, 2018. ⟨hal-02265640⟩

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