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Research Paper | July 28, 2022

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Woody Species Diversity and Traditional Management Practices in Parkland Agroforestry in Gombora District, Hadiya Zone, Southern Ethiopia

Melese Gogo Massamo

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Int. J. Biosci.21(1), 19-43, July 2022

DOI: http://dx.doi.org/10.12692/ijb/21.1.19-43

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Abstract

This study was carried out in the southern Ethiopia to identify traditional management practices and woody species diversity in parkland Agroforestry. Reconnaissance and diagnostic surveys were conducted in the two agro-ecological zones. Then, 85 sample households were randomly selected from each wealth category based on the proportions. Systematic sampling method was used to collect woody species data from 240 quadrates. Questionnaire was used to gather information. Woody species data was analyzed for diversity, similarity index, basal areas, and importance value index. Based on the analysis of the woody species data, a total of 27 woody species belonging to 19 families were recorded. Of these, 27 woody species were recorded in lower altitude sites and 23 woody species in upper altitude sites. The important value of individual trees species at the farm level was assessed and Croton macrostachyus was ranked first at lower and upper altitude sites with mean importance value index of 120 and 118%, respectively. The richness of woody species per quadrate in lower altitude sites (3.508±0.23) was significantly (P< 0.05) higher than in upper altitude sites (2.708±0.21). At the study sites, farmers retain woody species in their parklands for the purpose of improving soil fertility, fodder, fuel wood, timber shade, construction, etc. The survey result revealed that the woody species Shannon, Simpson and Evenness diversity indices were higher at lower altitude sites than upper altitude sites. Therefore, we recommend that woody species diversity and traditional management practices are mainstreamed into development plans, especially in parkland Agroforestry.

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