Woody Species Diversity, Community Structure, and Regeneration Capacity in Central Ethiopian Urban Forest Patches
Metadatos
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MDPI
Materia
Plantation Pre-urban Afforestation Native species Urban forests
Fecha
2022-04-25Referencia bibliográfica
Semu, A.A... [et al.]. Woody Species Diversity, Community Structure, and Regeneration Capacity in Central Ethiopian Urban Forest Patches. Sustainability 2022, 14, 5164. [https://doi.org/10.3390/su14095164]
Resumen
Land cover change in Addis Ababa, Ethiopia’s capital, is driven by recurring drought and
the economic problems of society-initiated afforestation. The goal of this study was to learn about the
state of woody species regeneration in Yeka’s urban forest patches. Thirty plots (20 m x 20 m in size)
were sampled to identify plants for this purposE. All wooden trees with a height greater than 1.3 m
in each plot were identified, enumerated, and their diameter were measured. Acacia decurrens was
determined to be the predominant species, with an importance value index (IVI) of 161.09, followed
by Acacia melanoxlon (IVI = 44.69). The bootstrapping PERMANOVA test was used to show how the
species in the community overlapped. The result reveals that dissimilarity is low (p > 0.05), which is
supported by the assumption of multivariate dispersion homogeneity. The area’s generalized linear
model (GLM) showed all species statistically significant for characteristics associated with closure
year and presence of mature trees and the entire closure year. Two of the twenty tree species, i.e.,
Acacia decurrens and Acacia melanoxylon were found in nearly equal numbers in all three growth stages
as well as having strong regenerating potential. The rapid expansion of exotic Acacia spp. necessitates
careful attention to their regeneration. To reinforce and improve ecosystem services, conservation
and restoration efforts should encourage the regeneration of native plant species.