Browsing Environmental Science by Title

Now showing items 125-144 of 384

The Ecological Distribution and Socio-Economic Impacts of Prosopis Juliflora (Sw.) Dc. in the Amibara Woreda, Afar National Region State

Gatew Shetie (Addis Ababa University, 2008-01)

This study was carried out to map and quantify the distribution of Prosopis juliflora and analyses some impacts of the plant on the society. Moreover, it compares the land use land cover changes, determining the rate of ...
Ecological Health Assessment of Selected Streams in Upper Awash River Using Fish Metrics and Fish Parasites as Bioindicators

Tadesse, Habtamu (Addis Ababa University, 2022-02-16)

Fish and fish parasites are not well studied as bioindicators for assessing the health of streams and rivers in Ethiopia. Previous studies mainly focused on the diversity, abundance and description of major parasites in ...
Ecological Impacts of Bush Encroachment on Rangeland Ecosystem: The Case of Hallona and Medhacho Pastoralist Associations in Borana Lowlands

Bekele Niguse (Addis Ababa University, 2008-12)

The Borana rangeland has been an important area of cattle production in Ethiopia. However recent dominance by woody cover is considered as a threat to range conditions in the area. A multidisciplinary approach was followed ...
Economic Valuation of Gully Rehabilitation; A Case Study at Farta Woreda, In South Gondar, Ethiopia

Tibebe, Yitbarek (Addis Ababa University, 2007-06)

In addressing land degradation problems a number of interventions have been made in Ethiopia, gully rehabilitation is one of such measures. But so far, the economic value of gully rehabilitation from the point of view of ...
Effect of Different Dietary Proportions of Animal and Plant Protein Sources on Growth and Apparent Digestibility in Juvenile Nile Tilapia Oreochromis Niloticus (Linnaeus, 1758) in Tanks

Mebratu, Fiyori (Addis Ababa University, 2022-02-16)

Availability of quality feed is one of the most important factors for the best production in aquaculture sector. Despite the great potential, aquaculture has remained underdeveloped in Ethiopia. The study evaluated the ...
The Effect of Organic and Inorganic Fertilizer on Growth of Jatropha curcasL. Seedling on Degraded Land at Nifas Silk Lafto Subcity,Addis Ababa

G/Hana, Etsegenet (Addis Ababa University, 2014-03)

Jatropha curcas L. is one of the biofuel plants that can grow on degraded lands for rehabilitation the soil and to increase biodiversity.Its oil can also be used as a substitute for fossil fuel that causes high environmental ...
Effect of Prosopis juliflora Biochar Amendment on Some Soil Properties: The Case of Salic Fluvisols from Melkawerer Research Station, Ethiopia

W/Mariam, Serkalem (Addis Ababa University, 2015-11)

A greenhouse pot experiment was conducted to evaluate the effect of Prosopis juliflora derived biochars on some properties of Salic Fluvisols collected from Melka werer area. Five rates of biochars (0, 2.5, 5.0, 7.5, and ...
Effect of Soil and Water Conservation Measures on Soil Macronutrient and Moisture Status in Guba-Lafto Woreda, North Wollo, Ethiopia Belay Asnake

Asnake, Belay (Addis Ababa University, 2016-11)

This study was conducted to assess the effect of soil and water conservation practices on soil macronutrients (N, P, and K), organic carbon content, soil pH, cation exchange capacity (CEC), and soil moisture status in ...
Effect of Soil and Water Conservation on Selected Soil Characteristics in Dimma Watershed, Central Ethiopia

Habtamu, Haweni (Addis Ababa University, 2015-10)

In Ethiopia, agriculture is expanding onto the most erosion sensitive sites. The government has been investing in soil and water conservation (SWC) measures, mainly farmland terracing and exclosure of degraded lands. ...
Effect of Soil Erosion on Physico-Chemical Properties of Soils and Crop Yields: Gola Micro Watershed of Oyda Woreda, Southern Ethiopia

Gankiso, Hana (Addis Ababa University, 2017-02)

degradation is recognized as one of the most serious environmental problems in Ethiopia. Hence, assessing the effect of soil erosion on soil fertility and the effectiveness of physical soil and water conservation structures ...
The Effect of zero grazing on biogas and slurry production in Fogera Woreda

Worku Zemene (Addis Ababa University, 2010-07)

This study was conducted with the objective of quantifying the effect of zero grazing on the biogas and slurry production in Fogera woreda through grouping cattle in to two main categories, i.e., zero grazers and free ...
Effectiveness of Oxidation Ponds in Industrial Wastewater Treatment

Biru, Dejene (Addis Ababa University, 2011-05)

This study was aimed at evaluating the efficiency of the oxidation ponds in industrial (Tannery) wastewater treatment. The analyses were carried out on selected tanneries of Modjo area, East Shewa, Oromia National regional ...
Effectiveness of School Water Supply, Sanitation and Hygiene Program: in the case of Assossa Woreda Primary Schools, BGRS, Ethiopia.

Alemu, Habtamu (Addis Ababa University, 2011-05)

School WaSH survey IVas carried oul in the primQly schools of Assossa woreda, BGRS, Elhiopia. II was intended 10 assess (he situation and effectiveness of woler supply and sanitation facilities in schools, hygiene ...
Effects of Biochar Produced From Paper Waste as Acidic Soil Reclamation and Impovement of Vegetables Yield

Watumo, Girma (Addis Ababa University, 2018-06-04)

The biochar amendment in soil had got more attention of research in the recent time, to reclaim acidic soil. The aim of this study was to increase yield of red beet and cabbage in pot experiment via biochar for the experiments ...
Effects of Selected Biochar Amendments on Immobilization of Bioavailable Cadmium (Cd) In Ethiopian Kale (Brassica Carinata) Grown In Artificially Contaminated Soil

Kiros, Yordanos (Addis Ababa University, 2018-01-05)

EFFECTS OF SELECTED BIOCHAR AMENDMENTS ON IMMOBILIZATION OF BIOAVAILABLE CADMIUM (Cd) IN ETHIOPIAN KALE (Brassica carinata) GROWN IN ARTIFICIALLY CONTAMINATED SOIL YORDANOS KIROS G/TSADIK Addis Ababa University, 2018 ...
Effects of Soil Acidity Reclamation Measures on Soil Properties and Barley(Horidum Vulgarae L.) Yields in West Shewa Zone of Ethiopia

Araya, Mulu (Addis Ababa University, 2022-04-06)

Soil acidity is one of the serious constraints for crop yield in Jeldu district, Ethiopia, particularly causing phosphate deficiency. This study was conducted to explore the effects of soil acidity reclamation measures on ...
Efficiency of Maerua subcordata in Removing Turbidity and Bacteriological Contamination from Potable River Water

Teka, Gedewon (Addis Ababa University, 2009-07)

Attention has been rising towards natural water purifying agents as the effect on human health and the environment of synthetic chemicals became evident. Maerua sucordata has been used as a natural coagulant traditionally ...
Enclosure as a Viable Option for Rehabilitation of Degraded Lands and Biodiversity Conservation: The Case of Kallu Woreda, Southern Wello

Mamo Kibret (Addis Ababa University, 2008-01)

Area enclosure is emerging as one of the strategies to rehabilitate and restore degraded environments. In this study the roles of area enclosure investigated in comparison to an open adjacent site were assessed for ...
Enhancing nitrogen and organic matter removal from tannery wastewater using efficient proteolytic bacterial isolates and their enzymes in lab-scale anoxic-oxic process

Mulugeta, Yemisirach (Addis Ababa University, 2008-02)

Tannery wastewater contains high level of protein, which, as a macromolecule takes longer residence time for its microbial degradation. The objectives of this study were to see the effect of adding protease and ...
Enhancing Nitrogen and Organic Matter Removal from Tannery Wastewater Using Efficient Proteolytic Bacterial Isolates and Their Enzymes in Lab-Scale Anoxic-Oxic Process

Mulugeta, Yemisirach (Addis Ababa University, 2008-02)

Tannery wastewater contains high level of protein, which, as a macromolecule takes longer residence time for its microbial degradation. The objectives of this study were to see the effect of adding protease and ...

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