Diversity, Regeneration Status and Soclo-Econoi\Uc Importance of the Vegetation in the Islands of Lake Ziway, South-Central Ethiopia
| dc.contributor.advisor | Kelbessa, Ensennu (PhD) | |
| dc.contributor.author | Zegeye, Haileab | |
| dc.date.accessioned | 2018-07-18T11:59:05Z | |
| dc.date.accessioned | 2023-11-09T04:21:19Z | |
| dc.date.available | 2018-07-18T11:59:05Z | |
| dc.date.available | 2023-11-09T04:21:19Z | |
| dc.date.issued | 2004-06 | |
| dc.description.abstract | The study was conducted in the islands of Lake Ziway located in the Main Ethiopian Rift part of the Ethiopian Rift Valley in south-central Ethiopia, The main objective of the study was to investigate the diversity, regeneration status, socio-economic importance and the factors that cause degradation of the plant resources in the islands, Vegetation and socio-economic data were collected between 18 September and 7 November 2003, A total of 73 releves, measuring 20 m x 20 m (400 /1/), l\'ere established along line transects laid ,/i'om central part of each island to the lake edge in eight aspects, Herbaceous species were sampled by using a 2 m x 2 m (4 m2 ) sub-releve laid within each relet'!!, In each relev!!, the cover/abundance of each species was estimated, 1\'oody species were counted, diameter at breast height of trees and shrubs and environmental variables (altitude, slope, aspect and position) were measured, Participat01J' Rural Appraisal method was employed to generate the socio-economic information, A total of 141 species belonging to 113 genera and 55 families were identified, of which 18.4% were trees, 21,3% trees/shrubs, ]2,1% shrubs, 3,5% lianas, 4,3% herbaceous climbers and 40.4% herbs, The overall diversity and evenness of woody species in the islands were 2,60 and 0,62, respectively, The number of species on the islands correlated with island's size, degree of human disturbance as well as habitat diversity. The similarity in species composition betlreen the islands was loll', indicating that each island has its own unique flora, Nine plant communities were recognized and described. The total density and basal area of the vegetation were 2979 individuals ha" and 191 n//w", respective~l', The importance value index and the diameter class distribution revealed that some species are threatened and need the highest priority for conservation, The socio-economic survey showed that the island communities are high~)' dependent on the natural vegetation for various | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/9253 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa Universty | en_US |
| dc.subject | Soclo-Econoi\Uc | en_US |
| dc.title | Diversity, Regeneration Status and Soclo-Econoi\Uc Importance of the Vegetation in the Islands of Lake Ziway, South-Central Ethiopia | en_US |
| dc.type | Thesis | en_US |