Caractéristiques structurales et écologiques des populations de &lt;i&gt;Antiaris toxicaria&lt;/i&gt; (Pers.) Lesch et de &lt;i&gt;Ceiba pentandra&lt;/i&gt; (L.) Gaertn dans les forêts reliques du Sud-Benin

Tessi, Yehouenou; Akouehou, GS; Ganglo, JC

doi:10.4314/ijbcs.v6i6.24

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…For this study in the forest of Pobè, focusing on the structural and ecological characterization of tree communities, sustainable management are essential for the safeguard and conservation of forest ecosystems and their biodiversity. Indeed, the works of Sokpon [17] and Yehouenou-Tessi [18], using the phytosociological approach, focused on the ecological research in the forest of Pobè by identifying and describing the plant communities and characterizing the structures of their trees for a sustainable management of the forest. This approch is also used in the studies of forest plantations [19,20].…”

Section: Introductionmentioning

confidence: 99%

Structural and Ecological Characteristics of Tree Communities in the Forest of Pobe in Southeast Benin

Kingbo¹,

Agbo²,

Ganglo³

2021

AFF

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The main objective of this study is to determine the different tree communities in the forest of Pobè and characterize their structure and ecology to contribute to the sustainable management of this forest. The forest of Pobè is located between the parallels 6° 57' 20" and 6° 58' 04" north latitude and 2° 39' 46" and 2° 40' 45" east longitude. The sampling used for data collection is one central plot of 1 hectare (100 m x 100 m) at the center of a square of 4 ha (200 m x 200 m). Twenty-five plots were installed and the dendrometric measurements were taken on the trees (dbh≥10cm). The regeneration inventory was done in 125 quadrats of 100 m 2 each at the rate of 5 quadrats per plot. The main results obtained showed that the forest of Pobè is diversified with 56 species of trees with an average density of 157 trees/ha and a basal area of 28.01m²/ha. The diameter structure shows that the trees of small diameters (≤40 cm) are the most represented, which presages a forest able of ensuring its own renewal. Two tree communities have been identified and characterized. The most representative is the community dominated by Triplochiton scleroxylon, Ceiba pentandra and Antiaris toxicaria and the community dominated by Triplochiton scleroxylon, Antiaris toxicaria and Terminalia superba. These two tree communities are well diversified and do not present a significant difference at the threshold of 5% for the diversity indexes calculated. The biggest threat of loss of biodiversity and the forest of Pobè degradation is anthropization, marked by the presence of vegetation fires, fuelwood cutting for charcoal production and the traffic paths often source of forest fragmentation.

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Section: Introductionmentioning

confidence: 99%

Structural and Ecological Characteristics of Tree Communities in the Forest of Pobe in Southeast Benin

Kingbo¹,

Agbo²,

Ganglo³

2021

AFF

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“…To value the potential of regeneration in Niaouli forests especially for the valuable species, a count was made in diagonal quadrats of 100 m 2 (10 m * 10 m) installed in the 1 ha plots. Three regeneration classes were considered (Yêhouénou Tessi et al, 2012):…”

Section: Study Areamentioning

confidence: 99%

Structural characteristics of Niaouli forests, biodiversity, and ethnobotanical importance of the valuable species

GANGLO,

KOURA,

KIKI

et al. 2023

Preprint

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In Benin, forest resources are limited and are in the grip of alarming degradation. In southern Benin, the Niaouli forests (6°40' to 6°45' North Lat. and 2°05' to 2°10' East Long.) require special attention given their state of degradation leading to loss of biodiversity. In order to contribute to the sustainable management of the forests, our investigations focused on the characterization of the structure, floristic diversity, and forms of use of the valuable species. The data was collected by systematic sampling with rectangular meshes of 100 m × 200 m in square plots of one (01) ha each. In total, seven (07) plots were installed for the determination of dendrometric and biodiversity parameters. The regeneration of the species was counted in quadrats of 100 m² installed on a diagonal of each plot. Ethnobotanical surveys were carried out within local populations, on a sample of 188 people made of heads of peasant households or their representatives, carpenters, traditional healers, and loggers in order to identify valuable species and appraise their ethnobotanical importance. Four valuable species were identified. They were Albizia zygia, Antiaris toxicaria, Ceiba pentandra, and Newbouldia laevis. The diversity parameters showed that the forests of Niaouli are characterized by a low floristic diversity in comparison with the forest ecosystems of southern Benin. The main valuable species of the Niaouli forests were experiencing a regeneration problem likely to hinder their sustainability and sustainable use. Albizia zygia, Antiaris toxicaria, and Ceiba pentandra are used more in the form of wood respectively by 85 %, 50 %, and 75 % of respondents. Newbouldia laevis is used more in the form of an infusion by 33 %, fodder by 21 %, and wood by 21 % of respondents. Respondents cited 58 diseases treated with species from the Niaouli forests. Considering the results obtained, regular reforestation and the introduction of new adapted species must be carried out to increase the biodiversity and ecosystem services of the forests.

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“…Ces structures témoignent aussi du prélèvement sélectif des arbres de plus gros diamètre pour les exportations pendant les exploitations forestières illégales. Par ailleurs, la faible fréquence d'arbres matures ou de semenciers (diamètre supérieur à 35 cm) posera un problème de régénération sur le long terme dans ces peuplements (Yehouenou et al, 2012).…”

Section: Structure Démographique Des Peuplements Naturels De P Erinaunclassified

Structure démographique et régénération naturelle des peuplements naturels de Pterocarpus erinaceus Poir. (Fabaceae) des savanes de Côte d’Ivoire

et al. 2019

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Pterocarpus erinaceus Poir. (Fabaceae) est un arbre des forêts claires et des savanes arborées d’Afrique, très prisé pour son bois, son fourrage et ses vertus thérapeutiques, cause de sa surexploitation en Côte d’Ivoire. La présente étude analyse la structure démographique des peuplements naturels et les potentialités de régénération de cette essence en fonction de l’intensité d’exploitation dans les trois types de savanes (guinéenne, subsoudanienne et soudanienne) de la Côte d’Ivoire en vue de leur conservation. Des mesures dendrométriques (diamètre à 1,30 m du sol, hauteur totale et hauteur du fût de l’arbre) ont été effectuées dans 30 transects de 200 m de large, sur des individus de P. erinaceus de diamètre égal ou supérieur à 5 cm dans six sites. La régénération a été évaluée dans 186 placettes de 30 m x 30 m équidistantes de 50 m à l’intérieur des transects. Les résultats révèlent que les plus grandes valeurs moyennes de densité d’arbres et de densité de régénération ont été obtenues en savane guinéenne (9,9 arbres/ha et 33,8 tiges/ha) et subsoudanienne (12,6 arbres/ha et 25,2 tiges/ha) alors que le diamètre moyen (33,9 cm), la hauteur totale moyenne (10,6 m) et la hauteur moyenne du fût (3,83 m) présentent des valeurs significativement plus élevées (p < 0,001) en savane soudanienne. L’étude montre que l’espèce se régénère par semis naturels, rejets de souche et drageons. La distribution en classe de diamètre s’ajuste à la distribution de Weibull avec une forme en « J renversé » en savane guinéenne et subsoudanienne et en « cloche » en savane soudanienne avec des arbres de taille moyenne. Hormis l’aire protégée de Kouassi-Ndawa, les cinq autres peuplements sont soumis à diverses pressions anthropiques (coupes, écorçage et émondage).

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Caractéristiques structurales et écologiques des populations de <i>Antiaris toxicaria</i> (Pers.) Lesch et de <i>Ceiba pentandra</i> (L.) Gaertn dans les forêts reliques du Sud-Benin

Cited by 9 publications

References 15 publications

Structural and Ecological Characteristics of Tree Communities in the Forest of Pobe in Southeast Benin

Structural and Ecological Characteristics of Tree Communities in the Forest of Pobe in Southeast Benin

Structural characteristics of Niaouli forests, biodiversity, and ethnobotanical importance of the valuable species

Structure démographique et régénération naturelle des peuplements naturels de Pterocarpus erinaceus Poir. (Fabaceae) des savanes de Côte d’Ivoire

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