Prunus africana (Hook. f.) Kalkman est une plante médicinale Afro montagnarde dont l’exploitation de l’écorce obéit à un mode de gestion bien défini au Cameroun. La présente étude visait à faire un état de lieux de l’exploitation de cette espèce dans la Région de l’Adamaoua. Les données sur l’état de lieux et les paramètres de croissance ont été collectées du 5 au 20 décembre 2020 sur 406 tiges écorcées en 2014 et 2015 dans deux sites. Pour chaque tige trouvée, la latitude, la longitude et l’altitude ont été précisées. Le diamètre à hauteur de poitrine, les épaisseurs de l’écorce ont été mesurées et la technique de récolte a été relevée. Les résultats montrent que les normes d’exploitabilité ne sont pas respectées à 10,8% de l’effectif total pour le diamètre minimum d’exploitabilité (≥ 30 cm au-dessus de 1.30m du sol) et 23,4% pour les techniques d’écorçage ; la technique 2/4 opposé a été appliquée sur les tiges au DHP > 60 cm contrairement à la norme. Le diamètre moyen des arbres exploités est de 47,60 ± 17,65 cm. L’épaisseur moyenne de l’écorce non encore exploitée est de 15,47±4,32 mm ; tandis que celle de la partie en reconstitution est de 7,30±2,32 mm. L’accroissement annuel moyen de l’épaisseur d’écorce est de 1,12±0,47 mm/an. Les paramètres de croissances varient en fonction des sites et de l’altitude. Une demi-rotation de 7 ans pourrait permettre une reconstitution à 101,3 % de l’écorce au second passage sur le côté restant de la même tige. Les résultats obtenus suggèrent d’adopter une demi-rotation globale de 7 ans. Prunus africana (Hook.f.) Kalkman is an Afro-mountain medicinal plant whose bark exploitation follows a well-defined management method in Cameroon. This study aimed make an inventory of the exploitation of this species in the Adamaoua region. Data on the condition and growth parameters were collected from December 5th to 20th, 2020 on 406 Prunus stems debarked in 2014 and 2015 at two sites. For each stem found the latitude, longitude and altitude were specified. The diameter at breast height, the thicknesses of the bark was measured and the harvesting technique was recorded. The results show that the exploitability standards are not respected at 10,8% of the total workforce for the minimum diameter of exploitability (≥ 30 cm above cm 1.30m from the ground) and 23,4% for debarking techniques; the 2/4 opposite technique was applied to sterms with DBH > 60 cm. The average diameter of the exploited trees is 47.60 ± 17.65 cm. The average thickness of the bark not yet exploited is 15.47 ± 4.32 mm; while that of the part being reconstructed is 7.30 ± 2.32 mm. The mean annual increment of bark thickness is 1.12±0.47 mm/year. Growth parameters vary according to site and altitude. A half rotation of 7 year could allow a reconstitution of 101,3% bark replenishment on the second pass on the remaining side of the same sterm. The results obtained suggest adopting an overall half-rotation of 7 years.
One of the problems at the root of the poor management of forest resources in Cameroon is the lack of good governance. This study aims to evaluate the governance put in place by the government of Cameroon to ensure better management of Prunus africana. It takes a critical look at the three pillars of forest governance in relation to the management of the resource, which are: policy, legal, institutional and regulatory frameworks (1); planning and decision-making process (2); and finally the implementation, enforcement and compliance of regulations (3). The assessment was conducted using the guide recommended by FAO-PROFOR. Individual and focus group interviews were conducted with stakeholders involved in the P. africana management process.The results in the form of assessment scores revealed poor governance in the management of the resource. This is due to non-compliance with Pillars 2 and 3 on the planning and decision-making process as well as the implementation and enforcement of regulations through weaknesses in the principles of transparency, accountability, the effectiveness of management measures and stakeholder participation. These are the points on which management strategies should be based for better management of P. africana in the production forests of the Adamawa region.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.