[ Structure, accroissement diametrique et évolution du stock de carbone des essences de la foret semi-caducifoliée de la Reserve Forestière de Yoko: Cas de Prioria oxyphylla (Harms) Breteler dans la parcelle permanente du bloc Nord (Ubundu, Province de la Tshopo, RD Congo) ]
Volume 39, Issue 2, April 2023, Pages 579–594
Bourgeoisie P. Isetcha1, Denis B. Waokoto2, Jean-Hilaire B. Asumani3, Michel K. Mose4, Francine B. Kirongozi5, Jacques N. Tshatshambe6, Roger L. Katusi7, and Christophe Lomba8
1 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
2 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
3 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
4 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
5 Centre de Surveillance de la Biodiversité, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
6 Centre de Surveillance de la Biodiversité, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
7 Faculté des Sciences, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
8 Faculté des Sciences, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
Original language: French
Copyright © 2023 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 overall objective of this paper is to know the structures, increases diametric means and the production of biomass and the amount of carbon sequestered four years later, between 2008 and 2012. The inventory was made in a permanent plot of 9 acres located in the northern block of the permanent device Yoko, whithn which all endividuals Prioria oxyphylla to dbh≥10cm were measured at 1.30m from abive the ground and surveying was materialized by two reds ripes painted and positioned by the coordinates x, y in the first season in 2008. And the second campaign made in 2012, was re-measure the same people and the same places. After the analysis, the total basal area was 1.1031m2 / ha (0.1226 ± 0.113 m2 /ha) in 2008 and that of 2012, it is 1.1599m2 /ha (0.1289 ± 0.1354 m2 /ha). The diametric structures and the years 2008 and 2012 are «S stretched». Diametric annual increases are 0.3 ± 0.46 for dominant and 0.16 ± 0.16 for the dominated. The biomass production increased from 19.5300t/ha (0.4246 ± 0.5545t/ha) in 2008 to 20.6724t/ha (0.4494 ± 0.5638t/ha) in 2012, a gain of about 0.2856t/ha/ Year. While the amount of carbon sequestered is increased from 9.7650t/ha (0.21123 ± 0.2726) in 2008 to 10.3362t/ha (0.2247 ± 0.2819t/ha) in 2012, a gain of the order of 0.1428 t/ha/year. Individuals Prioria oxyphylla are randomly distributed and the dominated are independent of the dominant within the permanent plot of the northern block of Yoko.
Author Keywords: Structure, diametric growth, carbon, semi-deciduous forest, Prioria oxyphylla, Yoko.
Volume 39, Issue 2, April 2023, Pages 579–594
Bourgeoisie P. Isetcha1, Denis B. Waokoto2, Jean-Hilaire B. Asumani3, Michel K. Mose4, Francine B. Kirongozi5, Jacques N. Tshatshambe6, Roger L. Katusi7, and Christophe Lomba8
1 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
2 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
3 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
4 Institut Supérieur des Techniques Médicales (I. S.T.M), Kisangani, RD Congo
5 Centre de Surveillance de la Biodiversité, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
6 Centre de Surveillance de la Biodiversité, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
7 Faculté des Sciences, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
8 Faculté des Sciences, Université de Kisangani, B.P. 2012 Kisangani, RD Congo
Original language: French
Copyright © 2023 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 overall objective of this paper is to know the structures, increases diametric means and the production of biomass and the amount of carbon sequestered four years later, between 2008 and 2012. The inventory was made in a permanent plot of 9 acres located in the northern block of the permanent device Yoko, whithn which all endividuals Prioria oxyphylla to dbh≥10cm were measured at 1.30m from abive the ground and surveying was materialized by two reds ripes painted and positioned by the coordinates x, y in the first season in 2008. And the second campaign made in 2012, was re-measure the same people and the same places. After the analysis, the total basal area was 1.1031m2 / ha (0.1226 ± 0.113 m2 /ha) in 2008 and that of 2012, it is 1.1599m2 /ha (0.1289 ± 0.1354 m2 /ha). The diametric structures and the years 2008 and 2012 are «S stretched». Diametric annual increases are 0.3 ± 0.46 for dominant and 0.16 ± 0.16 for the dominated. The biomass production increased from 19.5300t/ha (0.4246 ± 0.5545t/ha) in 2008 to 20.6724t/ha (0.4494 ± 0.5638t/ha) in 2012, a gain of about 0.2856t/ha/ Year. While the amount of carbon sequestered is increased from 9.7650t/ha (0.21123 ± 0.2726) in 2008 to 10.3362t/ha (0.2247 ± 0.2819t/ha) in 2012, a gain of the order of 0.1428 t/ha/year. Individuals Prioria oxyphylla are randomly distributed and the dominated are independent of the dominant within the permanent plot of the northern block of Yoko.
Author Keywords: Structure, diametric growth, carbon, semi-deciduous forest, Prioria oxyphylla, Yoko.
Abstract: (french)
L’objectif général de ce mémoire est de connaitre les structures, les accroissements diamétriques moyens et la production de la biomasse ainsi que la quantité de carbone séquestré quatre ans après, entre les années 2008 et 2012. L’inventaire a était fait dans une parcelle permanente de 9ha située dans la bloc Nord du dispositif permanent de Yoko, à l’intérieur de laquelle tous les individus de Prioria oxyphylla à dbh ≥10cm ont été mesurés à 1.30m du sol au-dessus et cette mensuration était matérialisée par deux bandes peintes en rouges et positionnées par les coordonnées x, y durant la première campagne en 2008. Et la deuxième campagne faite en 2012, était de remesurer les mêmes individus et aux mêmes endroits. Apres l’analyse, la surface terrière totale était de 1.1031m2 / ha (0.1226 ± 0.113 m2 /ha) pour l’année 2008 et celle de 2012, elle est de 1.1599m2 /ha (0.1289 ± 0.1354 m2 /ha). Et les structures diamétriques des années 2008 et 2012 sont en « S étiré ». Les accroissements diamétriques annuels sont de 0.3 ± 0.46 pour les individus dominants et de 0.16 ± 0.16 pour les dominés. La production de la biomasse est passée de 19.5300t/ha (0.4246 ± 0.5545t/ha) en 2008 à 20.6724t/ha (0.4494 ± 0.5638t/ha) en 2012, soit un gain de l’ordre de 0.2856t/ha/an. Tandis que la quantité de carbone séquestrée est passée de 9.7650t/ha (0.21123 ± 0.2726) en 2008 à 10.3362t/ha (0.2247 ± 0.2819t/ha) en 2012, soit un gain de l’ordre de 0.1428 t/ha/an. Les individus de Prioria oxyphylla sont distribués de manière aléatoire et que les dominés sont indépendants des dominants au sein de la parcelle permanente du bloc Nord de Yoko.
Author Keywords: Structure, accroissement diamétrique, carbone, foret semi-deciducifoliée, Prioria oxyphylla, Yoko.
How to Cite this Article
Bourgeoisie P. Isetcha, Denis B. Waokoto, Jean-Hilaire B. Asumani, Michel K. Mose, Francine B. Kirongozi, Jacques N. Tshatshambe, Roger L. Katusi, and Christophe Lomba, “Structure diametric growth and evolution of the stock of carbon species in the semi-deciduous forest Yoko Forest Reserve: Cas Prioria oxyphylla (Harms) Breteler permanent plot in the northern block (Ubundu, Orientale Province, DRC),” International Journal of Innovation and Applied Studies, vol. 39, no. 2, pp. 579–594, April 2023.
