The impact of wood cutting and of bush fires on the dynamics of the herbal strata of Sudano-Guinean Savanna
1 University of Ngaoundere, Department of Biological sciences, Faculty of Sciences. Laboratory of Biodiversity and sustainable development. P.O. Box: 454, Cameroon.
2 University of Yaoundé I, P.O. Box: 812, Cameroon.
3 Institute of Agricultural Research for Development (IRAD), P.O. Box 65 Ngaoundere, Cameroon.
Research Article
World Journal of Advanced Research and Reviews, 2021, 10(03), 334–347
Article DOI: 10.30574/wjarr.2021.10.3.0284
Publication history:
Received on 17 May 2021; revised on 20 June 2021; accepted on 23 June 2021
Abstract:
Few studies were carried out on the impact of wood cutting and bush fires on the dynamics of the herbal strata in savannahs of Adamawa, Cameroon. This study has as objectives to evaluate: 1. the recovery of the vegetation of shrub and grass savanna, 2. the evolution of the number of herbs with regards to time, 3. the floristic and specific contribution of the herbal specie. The inventories of herbaceous plants were carried out through quadra method in 9 sub-plots of 10 m × 10 m for each vegetal formation. The experimental design was split-plot with two (02) factors (savanna trees and shrubs), three (3) treatments (felling without fire, with fire and witness) and three (3) rehearsals/repetitions (portions). The analysis of variance (ANOVA) was used to compare means between treatments by using STATGRAPHIC XVII, and XLSAT to obtain result shown that 103 herbaceous plants divided in 73 genres and 23 families. The rate of recovery of savanna vegetation the herbs are more numerous 60% in the CSF, 50% in the CAF and 45% in witness site (wood savanna), Adversely, 30% in a witness site, 40% in the CSF and 50% in the CAF (shrub savanna). The number the species have grown from 3 to 45 in the tree’s savanna and 2 to 34 for the shrub savanna. The specific contribution of herbaceous varies according to the sites and the species.
Keywords:
Wood cutting; Bushfire; Savanna; Dynamics herbal strata and Bini
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