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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/14899
Title: A Study on the Structure of a Montane Forest
Other Titles: The Menagesha State Forest
???metadata.dc.contributor.*???: Dr. Tewolde Berhan G/Egziabher
Demissew, sebsebe
Issue Date: Jul-1980
Publisher: Addis Ababa University
Abstract: In order to have a better management for existing forests, and to reafforest devegetated areas an ecological study of forests is indispensable. Menagesha State Forest Which is one of the few remaining forests in Central Ethiopia was chosen for such a study. In the Menagesha State forest, 50 stands were chosen by systematic sampling. All the plants found in each stand were recorded and in all 60 species of plants were identified, Soil samples from the surface, 101 20, 30, 40 1 501 and 60 cm. Depths were taken and analyzed in the laboratory for conductivity, and sodium). pH, cations (calcium, magnesium, potassium Measurements of slope, aspect and altitude were taken in the field. The 50 stands were classified using the Association Analysis technique in the University of Manchester Hegional Computer Centre, resulting in 16 groups of stands (A, B, C, D, E, F, G, H, I, J, K, L 1 M, N, 0 and P). Each group of stands was compared with all other groups of stands to see whether there are tatistically significant variations in their environmental factors (conductivity, pH, cations, slope and altitude) between them using the t-test. The results of the t-test showed that there are two more or less distinct categories of vegetation. The first category identified by + Erica arborea include group of stands that have a poor nutrient status, a deeper soil, and a flatter habitat than the group of stands in the - Erica, category, The - Erica group of stands have soils that are relatively nutrient rich and have shallower depths, this group of stands also occupy steeper slopes than + Erica category, Based on the findings of the study it is suggested that the conservation of the forest has to continue; the nutrient poor + Erica areas could have improved nutrient stands if shrubs including Kolfa (Mukeguracha) followed by Maesa lanceolata and/or Carissa edulis that tend to Increase soil nutrients are planted, and planting conifers which increase rates of nutrient loss is avoided.
Description: A Thesis Submitted to School of Graduate Studies Addis Ababa University in Partial Fulfillment of the Requirements for the Degree Master of Science in Biology.
URI: http://hdl.handle.net/123456789/14899
Appears in Collections:Thesis - Biology

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