Volume : V, Issue : II, February - 2016

Community dynamics and Floristic composition Of Natural vegetation in Abaya–Hamassa, Rift Valley of Ethiopia

Eyasu Chama Didana, Dr. B. Sairam Pattnaik

Abstract :

<p> Ethiopia, with its multidimensional bio–geo terrain is unique for its species diversity and bizarre dispersion of wood land. A total of 315 plant species representing 198 genera and 59 families were identified in Abaya–Hamassa natural vegetation in the rift valley of Ethiopia. Six plant communities were identified and described. Community–environment correlation was assessed based on Ecological, physiological and pedological data collected from 55 quadrates (400mˆ2) belonging to eight selected sites between October 2013 to June 2014. The environmental parameters such as altitude, slope, aspect, PH, electrical conductivity, total nitrogen and soil texture (% sand, % clay and % slit) were measured for all quadrats. Among the environment parameters, altitude was negatively correlated with sand and clay. The floristic composition, floral diversity, identification of community type and community–environment interaction were investigated. The Percentage of coverage, Canopy, abundance and frequency of species were estimated and converted as per the modified Brawn–Blanquet 1–9 scale.</p>

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Article: Download PDF   DOI : 10.36106/ijsr  

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Eyasu Chama Didana, Dr. B.Sairam Pattnaik Ethiopia, with its multidimensional bio-geo terrain is unique for its species diversity and bizarre dispersion of wood land. A total of 315 plant species representing 198 genera and 59 families were identified in Abaya-Hamassa natural vegetation in the rift valley of Ethiopia. Six plant communities were identified and described. Community-environment correlation was assessed based on Ecological, physiological and pedological data collected from 55 quadrates (400m^2) belonging to eight selected sites between October 2013 to June 2014. The environmental parameters such as altitude, slope, aspect, PH, electrical conductivity, total nitrogen and soil texture (% sand, % clay and % slit) were measured for all quadrats. Among the environment parameters, altitude was negatively correlated with sand and clay. The floristic composition, floral diversity, identification of community type and community-environment interaction were investigated. The Percentage of coverage, Canopy, abundance and frequency of species were estimated and converted as per the modified Brawn-Blanquet 1-9 scale. International Journal of Scientific Research, Vol : 5, Issue : 2 February 2016

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