FLORISTIC COMPOSITION, STRUCTURE AND REGENERATION STATUS OF WOODY PLANT SPECIES OF GABRIEL FOREST, IN WOLDIA DISTRICT, NORTH WOLLO, AMHARA REGIONAL STATE, ETHIOPIA.

Zerihun, Tilahun

dc.contributor.author	Zerihun, Tilahun
dc.date.accessioned	2021-03-03T12:23:34Z
dc.date.available	2021-03-03T12:23:34Z
dc.date.issued	2021-03-03
dc.identifier.uri	http://ir.bdu.edu.et/handle/123456789/12023
dc.description.abstract	The present study was conducted in Gabriel forest located in Woldia District, Amhara Regional State, with the objective of Floristic Composition, Structure and Regeneration Status of Woody Plant Species of the forest. Forests worldwide are known to be critically important habitats in terms of the biological diversity they contain and interms of the ecological functions they serve. A total of 65 plots were sampled using transect sampling method. Three transect lines was laid down from the top to the base, where the distance between the transects was measured to be 200 m. Along the transect lines of each study site, 20 m x 20 m (400 m2 ) quadrats was laid down at every 50 m to analyze species turnover. In addition, five 5 m x 5 m subplots, one at each of the four corners and one at the center of the main plot was also laid to count number of seedlings and saplings of each species. Hierarchical cluster analysis was used to map out the community types using R-Package. Data for cover abundance, DBH, basal area, frequency, height, IVI and number of individual per species were collected from each plot. A total of 66 species included in 44 genera and 59 families were recorded in the forest. The family Euphorbiaceae was the most dominant with (8.57%) species followed by Fabaceae with (5.71%) species. The density of woody plants of the forest includes seedlings and saplings. Out of the total woody plant species 400, 375 and 328 individuals’ ha-1 were found to be seedling, sapling and mature respectively. The total basal area of the Forest was 10.3ha-1 . As a result the forest was dominated by young woody species and seedling stage. It indicated that the forest is in a good regeneration status. Five community types were recognized from hierarchical cluster analysis. The overall Shannon-Wiener diversity and evenness of woody species in the forest were 2.82 and 0.71 respectively indicating medium diversity and evenness of woody species. Population structure and regeneration status of selected woody species were assessed and results revealed that some species had regeneration problems and need management measures. Key words: Afromontane forest, Deforesation, Diversity, Plant Communities, Plots	en_US
dc.language.iso	en	en_US
dc.subject	BIOLOGY	en_US
dc.title	FLORISTIC COMPOSITION, STRUCTURE AND REGENERATION STATUS OF WOODY PLANT SPECIES OF GABRIEL FOREST, IN WOLDIA DISTRICT, NORTH WOLLO, AMHARA REGIONAL STATE, ETHIOPIA.	en_US
dc.type	Thesis	en_US