Use of Acacia auriculiformis fast-growing tree species for the mitigation of climate change

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Jesugnon Fifamè Murielle Féty TONOUEWA
Samadori Sorotori Honoré Biaou
Kwadwo Boakye Boadu
Eméline Sêssi Pélagie Assèdé
Douglas Amoah
Emmanuel Ebanyenle


Background: In the face of increasing wood demand in climate change context, fast-growing species are considered as a current solution. However, the ability of fast-growing species in agroforestry systems to contribute to bridging the gap between wood demand and supply and climate change mitigation also depends on the properties of the species, which vary based on locality. The objective of this study was to evaluate the potential of Acacia auriculiformis A. Cunningham ex Benth. wood in Benin to contribute to climate change mitigation while sustainably supplying wood. Tissues proportion (Vessels, ray parenchyma, axial parenchyma, fibers), in the wood; fiber parameters (length, diameter and lumen width); organic carbon content and natural durability of A. auriculiformis wood to termite (Macrotermes bellicosus) were determined. 
Results: The results indicate that the species has a high proportion of fibers (58%), which are quite long (1 mm to 4 mm), an organic carbon content of 35%, and is moderately durable to very durable against termite infestations.
Conclusion: The species, thus, has strong potential for wood (high fiber content, high fiber length, greater durability), renewable bioenergy (good fiber length) and pulp (high fiber content) and could be valued to supplement the wood supply from natural forest and contribute to mitigating the effect of climate change (carbon sequestration and limitation of pressure on natural forests).

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