Growth, Productivity, Biomass and Carbon Stock in Eucalyptus saligna and Grevillea robusta Plantations in North Kivu, Democratic Republic of the Congo

A decade-long study reveals that while Eucalyptus saligna plantations outperform Grevillea robusta in growth and productivity, G. robusta could offer greater carbon sequestration potential if managed under optimal conditions. Conducted across two sites with distinct soil and climatic conditions in North Kivu, Democratic Republic of the Congo, this research assessed 20 E. saligna and 12 G. robusta plantations over three consecutive years using non-destructive inventories. Findings indicate that E. saligna is more productive, particularly at higher altitudes, while G. robusta shows promise for carbon credits due to its biomass and carbon stock characteristics. The study suggests mixed-species plantations with tailored silvicultural practices could simultaneously optimize wood-energy production and carbon storage, addressing the growing energy demands of disadvantaged communities near Virunga National Park. Optimal rotation periods were determined at 8 years for E. saligna and 12 years for G. robusta, emphasizing the need for long-term economic and sustainability assessments in this critical region.

Kasekete, D. K., Ligot, G., Mweru, J.-P. M., Drouet, T., Rousseau, M., Moango, A., & Bourland, N. (2022). Growth, Productivity, Biomass and Carbon Stock in Eucalyptus saligna and Grevillea robusta Plantations in North Kivu, Democratic Republic of the Congo. Forests, 13(9), 1508. https://doi.org/10.3390/f13091508