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Ing. Biresaw Mahtot Alemu, Ph.D.
Identification number: 22659
University e-mail: 22659 [at]
P 39 14  Landscape Engineering (LDF)
Doctor type of study, full-time form
Forest Ecology, study successfully completed

Contacts     Graduate     Final thesis     Publications     Conferences     

Basic information

Basic information about a final thesis

Type of thesis: Dissertation thesis
Thesis title:Vegetation structure and diversity of woody plants in Hamusit and Jawi woodlands, Amhara National Regional State, Ethiopia
Written by (author): Ing. Biresaw Mahtot Alemu, Ph.D.
Department: Department of Forest Botany, Dendrology and Geobiocoenology (FFWT)
Thesis supervisor: doc. Dr. Ing. Jindřich Pavliš
Opponent 1:prof. Ing. Erich Václav, DrSc.
Opponent 2:RNDr. Boris Vrškový
Opponent 3:doc. Ing. Antonín Buček, CSc.
Final thesis progress:Final thesis was successfully defended.

Additional information

Additional information about the final thesis follows. Click on the language link to display the information in the desired language.

Language of final thesis:English

Czech        English

Title of the thesis:Vegetation structure and diversity of woody plants in Hamusit and Jawi woodlands, Amhara National Regional State, Ethiopia
Summary:The woodlands of Ethiopia harbor different species of floras and faunas important for the livelihood of the people as a source of income and food, biodiversity conservation and environmental values. However, most vegetation studies in Ethiopia emphasis on wet montane forests. Very few studies were conducted on the low land woodland forests of the country. This study is conducted in the woodlands of Jawi and Mosebit, located in the Amhara National Regional State (ANRS). Objectives of the paper are: 1.) To study the diversity and species composition of the woodlands 2.) To study the population structure of the woody vegetation in general and Boswellia papyrifera in particular, in relation to different environmental factors and 3.) To analyze and to describe characteristics of the soil and evaluate its fertility status. To achieve the objectives data were collected in both woodlands in October and November, 2008, in Ethiopia. Vegetation data were collected in both sites using plots of 50 x 50 m (0.25 ha). The plots were laid out along line transects. The distance between consecutive plots along transect and the spacing between two adjacent transect lines were 500 m and 600 m, respectively, In each major plot four subplots (4 m X 4 m) were established at the corner of the major plots. An electronic compass Map-Star Module II was used for the alignment of transects. Aspect, altitude and location of each sample plot data were collected using GPS Juno ST handheld (Trimble, USA). A new technique is used to map the positions of tree individuals in three-dimensional space with a high accuracy. Measuring set consists of a distance measuring device (laser rangefinder Impulse 200 Standard) and an electronic compass supplying data to a field computer with specialized software (Field-Map). The major plots were used to collect data on trees and shrubs. While, the sub-plots used to collect data on seedlings and saplings. A total of 5 plots in Jawi woodland and 10 plots in Hamusit woodland laid out to collect data. The plots of Jawi were less in number because of the homogenous nature of the vegetation. While, the plots of Belesa were high because of the diversified nature of the vegetation and availability of different land use types. For data analysis of the species diversity PAST and Biodiversity pro. Softwares were used. The soil data analyzed in the laboratory of Moravia s.r.o., Studenka (SLMS), and in the Faculty of Forestry and Wood Technology soil laboratory, Mendel University of Agriculture and Forestry (MUAF), Czech Republic. A total of 58 woody species belonging to 22 families were identified from both sites. The Burseraceae family was dominant. The Shannon diversity in Mosebit and Hamusit woodlands were 2.56 and 1.72, respectively. Diversity of species in the study areas vary within altitudinal ranges, aspect and slope of the woodlands. A total of 241 trees/ha and 292 trees/ha were found in Mosebit and Hamusit study sites, respectively. The seedling density result indicates 3656 seedlings/ha and 2469 seedlings/ha in Mosebit and Hamusit study areas, respectively. B. papyrifera were found the dominant and economically important species in both study sites. The relative density of different tree species in different height and diameter classes were determined by altitude, aspect, and gradient of the study areas. Soil results indicated significant differences in the pH, organic mater (OM), phosphorus (P), sodium (Na), potassium (K), calcium (Ca), magnesium (Mg), electric conductivity (EC), Silt and sand proportions of Hamusit and Mosebit woodland soils. The soil pH, P, K, Ca, EC of Hamusit were higher than that of Mosebit. While, it's OM, Na, Mg, in the soils of Hamusit was lower than that of Mosebit. There is no significance different in the clay proportion in the soils of Mosebit and Hamusit woodlands. The study result concludes that diversity, relative density, height class and diameter class of species in the two sites is dependent on environmental factors. Finally, the findings indicate that the two woodlands harbor, economically important tree species. Therefore, giving due attention in conserving these woodlands and developing a participatory management plan is important for sustainable management of the resources.
Key words:Boswellia papyrifera, Woodland, Ethiopia

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Display the assignment formFinal thesisThesis appendicesSupervisor's reviewOpponent's review E. VáclavOpponent's review B. VrškovýOpponent's review A. Buček