International Academy of Ecology and Environmental Sciences Proceedings of the International Academy of Ecology and Environmental Sciences 2220-8860 14 2 2024 6 1 Diversity, structure and regeneration status of woody species in Wacho forest, South-Western Ethiopia 31-47 EN Gezahegn Gashu Gebre Gidey Zame Fekansa Sime Deressa http://www.iaees.org/publications/journals/piaees/articles/2024-14(1)/diversity-structure-regeneration-of-woody-species.pdf> Wacho forest is on the verge of degradation. Thus, the study was conducted to quantify the vegetation status of Wacho forest. The field data was collected through a systematic random sampling technique from 20 m by 20 m of 73 sample plots. The matured strata were collected from 20 m by 20 m of the main plot, while saplings were collected from 5 m by 5 m of subplots. Seedlings were additionally collected from each of the five 1 m by 1 m of subplots. The species richness, Shannon wiener diversity index, and Shannon evenness were computed to examine the diversity of the study forest. The structures of woody species were determined using diameter at breast height class, density, frequency, basal area, and important value index. The number of trees and shrubs, saplings, and seedlings were counted across all sample plots to determine the regeneration status of the study forest. The result showed that about 82 woody plant species with 38 families were identified within the study forest. Wacho forest had 2.75 of Shannon Wiener diversity index and 0.95 of Shannon evenness, which shows a medium Shannon Wiener diversity index and proportional distribution of woody species across all quadrants. The structural analysis of the study forest indicates that the majority of the woody species had a larger number in the lower diameter at breast height category and a lower number in the higher diameter at breast height category, which shows an inverted J-shaped structure, and therefore the regeneration status of the study forest is situated under fair condition.