MBENGA IBESOA José*, MUMBERE NGUNGUTA Joel, LUMPUNGU KABAMBA Christophe

Silvicultural Assessment of the Plantations of Entandrophragma utile and angolense, Aucoumea klaineana and Nauclea diderrichii in the Luki Biosphere Reserve, in the DRC
The Luki Biosphere Reserve is a reference site that meets demonstration needs, on which, silvicultural experiments aimed at the sustainability of forests have been deployed, for more than fifty years. It is part of the international networks monitoring the performance of trees, forest dynamics and phenology of multiple forest species. In this paper, we made a diagnosis of silvicultural experiments in the Luki forest reserves by studying the behaviour of species in forest plantations. We carried out an inventory to count the species and take the various dendrometric parameters. The inventory was carried out on an area of 0.1 ha for the planting of Entandrophragma, 0.264 ha for the planting of Nauclea diderrichii and 0.7 ha for the planting of Aucoumea klaineana. The results showed that all three plantations have high mortality rates; this proves their state of abandonment: 73.4% for Entandrophragma angolense and 88.8% for Entandrophragma utile; 70.34% for Nauclea diderrichii and 72.33% for Aucoumea klaineana. The average annual increase in diameter is 0.21 cm for the species Entandrophragma, 0.6 cm for Nauclea diderrichii and 0.62 cm for Aucoumea klaineana. There is therefore the need to control forest stands to determine the density of trees, study the causes of mortality, and prescribe appropriate silvicultural remedies. Télécharger l'article