May 15, 2024 Thesis Open Access

HUSSIEN GELETA JAWARO

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            <foaf:name>Madda Walabu University</foaf:name>
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    <dct:title>FLORISTIC COMPOSITION, POPULATION STRUCTURE, AND REGENERATION STATUS OF WOODY SPECIES IN BARISA COMMUNITY FOREST, DODOLA WOREDA, WEST ARSI ZONE, SOUTH EAST ETHIOPIA</dct:title>
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    <dcat:keyword>Community Forest, Floristic composition, Population structure, Regeneration status, Woody species</dcat:keyword>
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        <foaf:name>MAMA ALIYI</foaf:name>
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            <foaf:name>Madda Walabu University</foaf:name>
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    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2024-05-15</dct:issued>
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    <dct:description>&lt;p&gt;The study was venturing into the heart of Ethiopia&amp;#39;s Barisa community forest in the scenic Dodola district of West Arsi Zone, this study delves deep into the intricate tapestry of nature. With a keen focus on understanding the forest&amp;#39;s essence, we set out to unravel its secrets regarding floristic composition, population dynamics, and the rejuvenating pulse of its woody species. Employing cutting-edge technology, this study meticulously mapped out the forest&amp;#39;s landscape using GPS coordinates, creating a grid-like pattern that led us to 80 carefully selected sample plots. These plots, each a 20m x 20m, used for capturing the essence of mature trees and the promise of young saplings5m&amp;times;5m (0.25M2) and for seedling 2m&amp;times;2m (0.04M2) quadrant of subplot. The data was analyzed by the R statistics software, revealing a captivating array of 30 plant species flourishing amidst the forest&amp;#39;s embrace. Diversity indices painted a vivid picture of nature&amp;#39;s equilibrium, showcasing a harmonious blend of species across different altitudes. Diversity indices such as Shannon Wiener diversity index (H&amp;rsquo;), species evenness (J), and Simpson&amp;rsquo;s Diversity Indices (D) were calculated, showing values of 2.62, 0.77, and 0.88, respectively. Altitude gradient analysis revealed that mid-altitude areas had higher diversity indices (H&amp;rsquo;, D, and S) compared to lower and higher altitudes. Population structure parameters such as DBH, tree height, basal area, dominance, density, frequency, and Important Value Index (IVI) were computed. The three most dominant tree species in terms of basal area, density, and relative frequency were Juniperus procera Hochst. ex Endl, Afrocarpus (Podocarpus) falcatus, and Hagenia abyssinica (Bruce) J. F. Gmel, respectively. The study area had a total basal area of 35.835m&amp;sup2;/hectare and a total density of 9168 trees per hectare. Regarding regeneration status, the average number of seedlings, saplings, and mature trees per hectare was approximately 8007, 941, and 220, respectively, indicating a good regeneration status characterized by an inversed J-shaped curve in the population structure of Barisa community forest. However, some species showed limited regeneration, highlighting the need for management measures to ensure the sustainable and wise use of forest resources.&lt;/p&gt;</dct:description>
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