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Diversité floristique, structure et dynamique des jachères post-culturales de la forêt classée de Bamo (Côte d’Ivoire)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Adingra, Omma Kassi, J. N. |
| Copyright Year | 2016 |
| Abstract | Les jacheres post-culturales sont une composante fondamentale des paysages agraires en Cote d’Ivoire. La succession secondaire post-culturale a ete etudiee le long d’une chronosequence de 31 jacheres incluses dans une matrice de foret dense semi-decidue (foret de Bamo, Cote d’Ivoire). Apres analyse de la flore locale, qui compte 414 especes, reparties en 305 genres et 83 familles, nous avons utilise la methode phytosociologique synusiale puis la classification hierarchique ascendante pour identifier les groupements vegetaux le long de la chronosequence. Cette etude a permis de mieux connaitre la diversite floristique, la dynamique et la structure de la foret. La distribution des tiges d’arbres par classe de diametre et de hauteur presente une structure en «J- renversee », temoin du renouvellement du peuplement arborescent. Les jacheres post-culturales subissent une dynamique progressive caracterisee par la succession de plusieurs stades de jacheres. Les champs abandonnes en pleine foret, ne presentent pas de difficultes pour reconstituer une foret proche de celle dont elles sont issues. Mots cles: Jachere post-culturales, biodiversite floristique, structure, dynamique, Cote d’Ivoire English Title: Floristic diversity, structure and dynamic of post cultural fallows in Bamo forest (Ivory Coast) English Abstract Post cultural fallows are a fundamental component of agrarian landscapes in Cote d’Ivoire. The post cultural secondary succession has been studied along a chronosequence of 31 fallows embedded into a matrix of a semi-deciduous tropical forest (Bamo listed forest, Ivory Coast). After an analysis of the local flora which has 414 plant species distributed in 305 genera and 83 families, we have used the synusial phytosociological method then, the upward hierarchical classification to identify the grouping of plants along the chronosequence. This study permitted to know the floristic diversity, the dynamic and the structure of the forest better. The distribution of tree stems by diameter class and height presents a structure in reversed “J”, witness of the renewal arborescent planting. The post cultural fallows undergo a progressive dynamic characterized by the succession of several stages of fallows. The abandoned fields in the middle of the forest do not present some difficulties to restore a forest similar to the one they stem from. Keywords: Post-cultural fallows, floristic biodiversity, structure, dynamic, Ivory Coast |
| Starting Page | 24 |
| Ending Page | 32 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Volume Number | 28 |
| Alternate Webpage(s) | https://www.ajol.info/index.php/aga/article/download/164136/153659 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
