[ Analyse d’une zone de contact de la forêt à Gilbertiodendron dewevrei (De Wild.) J. Léonard avec la forêt semi-caducifoliée dans la réserve de Yoko Nord, nord-est de la RD Congo ]
Volume 20, Issue 3, June 2017, Pages 892–910
Masiala Muanda Gabriel1
1 Institut National pour l’Étude et la Recherche Agronomiques (INERA), RD Congo
Original language: French
Copyright © 2017 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The analysis of a contact area of Gilbertiodendron dewevrei forest was conducted in the reserve north of Yoko. The objective is to characterize the contact zone between the forest Gilbertiodendron dewevrei and semi-deciduous forest. To collect data, 12 plots were installed at block north of the forest reserve of Yoko at milepost 25. The results obtained after analysis show that: -Density is 349 stems per ha for Gilbertiodendron dewevrei forest, 318 stems per ha for the contact area 1 and 351 stems per ha for the contact area 2. -The number of species is 64 for Gilbertiodendron dewevrei forest, 69 for the contact area 1 and 78 to the contact area 2. -The diversity index of Shannon is higher in the contact area 2 (3.56) that the contact area 1 (3.33) and forest Gilbertiodendron dewevrei (2.75). -The basal area is 35.30 sq m / ha for Gilbertiodendron dewevrei forest, 29.48 for the contact area 1 and 27.48 m² / ha for the contact area 2. -Regeneration of 20 major species found 594 individuals in the Gilbertiodendron dewevrei forest, 450 individuals in the contact area II and 427 individuals in the contact area I.
Author Keywords: Analysis, contact area, Gilbertiodendron dewevrei forest, semi-deciduous forest, forest reserve, Yoko North.
Volume 20, Issue 3, June 2017, Pages 892–910
Masiala Muanda Gabriel1
1 Institut National pour l’Étude et la Recherche Agronomiques (INERA), RD Congo
Original language: French
Copyright © 2017 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The analysis of a contact area of Gilbertiodendron dewevrei forest was conducted in the reserve north of Yoko. The objective is to characterize the contact zone between the forest Gilbertiodendron dewevrei and semi-deciduous forest. To collect data, 12 plots were installed at block north of the forest reserve of Yoko at milepost 25. The results obtained after analysis show that: -Density is 349 stems per ha for Gilbertiodendron dewevrei forest, 318 stems per ha for the contact area 1 and 351 stems per ha for the contact area 2. -The number of species is 64 for Gilbertiodendron dewevrei forest, 69 for the contact area 1 and 78 to the contact area 2. -The diversity index of Shannon is higher in the contact area 2 (3.56) that the contact area 1 (3.33) and forest Gilbertiodendron dewevrei (2.75). -The basal area is 35.30 sq m / ha for Gilbertiodendron dewevrei forest, 29.48 for the contact area 1 and 27.48 m² / ha for the contact area 2. -Regeneration of 20 major species found 594 individuals in the Gilbertiodendron dewevrei forest, 450 individuals in the contact area II and 427 individuals in the contact area I.
Author Keywords: Analysis, contact area, Gilbertiodendron dewevrei forest, semi-deciduous forest, forest reserve, Yoko North.
Abstract: (french)
L’analyse d’une zone de contact de la forêt à Gilbertiodendron dewevrei a été réalisée dans la réserve de Yoko nord. L’objectif est de caractériser la zone de contact comprise entre la forêt à Gilbertiodendron dewevrei et la forêt semi-caducifoliée. Pour récolter les données, 12 parcelles ont été installées au bloc nord de la réserve forestière de la Yoko au point kilométrique 25. Les résultats obtenus après analyse montrent que : -La densité est de 349 tiges à l’hectare pour la forêt à Gilbertiodendron dewevrei ,318 tiges à l’hectare pour la zone de contact 1 et 351 tiges à l’hectare pour la zone de contact 2. -Le nombre d’espèces est de 64 pour la forêt à Gilbertiodendron dewevrei, 69 pour la zone de contact 1 et 78 pour la zone de contact 2. -L’indice de diversité de Shannon est plus élevé dans la zone de contact 2 (3,56) que la zone de contact 2 (3,33) et la forêt à Gilbertiodendron dewevrei (2,75). -La surface terrière est de 35,30 m²/ ha pour la forêt à Gilbertiodendron dewevrei, 29,48 m²/ha pour la zone de contact 1 et 27,48 m²/ ha pour la zone de contact 2. -La régénération de 20 espèces principales révèle 594 individus dans la forêt à Gilbertiodendron dewevrei, 450 individus dans la zone de contact 2 et 427 individus dans la zone de contact 1.
Author Keywords: Analyse, zone de contact, forêt à Gilbertiodendron dewevrei, forêt semi-caducifoliée, Réserve forestière, Yoko Nord.
How to Cite this Article
Masiala Muanda Gabriel, “The analysis of a contact area of Gilbertiodendron dewevrei (De Wild.) J. Leonard forest with semi-deciduous forest in the reserve north of Yoko, northeast of the DR Congo,” International Journal of Innovation and Applied Studies, vol. 20, no. 3, pp. 892–910, June 2017.
