文章基本信息

标题：Gabon’s green gold: a bibliographical review of thirty years of research on okoumé (Aucoumea klaineana Pierre)
本地全文：下载
作者：Quentin Guidosse ; Patrick du Jardin ; Lee J.T. White 等
期刊名称：Biotechnology, Agronomy, Society and Environment
印刷版ISSN：1370-6233
电子版ISSN：1780-4507
出版年度：2022
卷号：26
期号：1
页码：30-42
DOI：10.25518/1780-4507.19458
语种：English
出版社：University faculty of agronomic Sciences of Gembloux Passage of the Deportees
摘要：Introduction. Aucoumea klaineana Pierre is the most harvested timber species in Central Africa and plays a key role in the economy of Gabon. This tree is considered “Vulnerable” for more than three decades by the IUCN because its population is assumed to have been reduced by at least 50% as a result of logging. The objective of this review is to synthesize recent and relevant knowledge in order to update this status. It focuses more specifically on ecology, population dynamics, silviculture and impacts of logging. Literature. Its natural range mainly covers Gabon. It is a light-demanding and gregarious species that forms root anastomoses. It principally establishes itself in abandoned fields and savannahs. In mature forest its regeneration is rare and limited to large gaps. Selective logging only allows significant regeneration along roads. However, at the scale of Gabon, the species is abundant and its renewal is ensured. Legal logging does not threaten the species. However, after decades of logging focusing on best shaped trees, a production of lower quality is feared. The implementation of a thoughtful silviculture could be a solution. Conclusions. Aucoumea klaineana is not vulnerable under IUCN A1 criterion. However, the maintenance of a high-quality production over the long term calls for the implementation of silviculture based on a thorough knowledge of the factors affecting stand dynamics, especially the role of the rhizosphere. Although long described, the functioning of root anastomoses has never been studied in depth.