Abstract: The negative impact of climate change has been striking the agricultural sector in Africa. For countries like Ethiopia, whose livelihood occupation of the nation is mainly based on subsistence agriculture that highly rely on rainfall, making an adjustment to adapt to the changing situation is very crucial. Therefore, designing contextual specific adaptation strategies are essential to moderate the negative effect of climate change. This study was intended to answer identify the agr...
Abstract: Rainfall remains the crucial component of the weather elements for improving agricultural yield. Different models are used to explain the intra-seasonal features like water balance, Reddy model, Mann Kendal test, Markov Chain and Standard Precipitation Index. The water balance and Reddy models were used to analyze the variability and stability of onset, end and length of growing periods for common crops and soil conditions. The analysis of the annual rainfall was made by daily Prec...
Abstract: In Ethiopia where crop production overly depends on rainfall and temperature, studying the variability of these climate variables at a local scale is essential to devise proper strategies that enhance adaptive capacity. In light of this, a study was conducted in Abshege Woreda, Gurage Zone to analyze climate variability for maize production and to characterize local farmers’ perception towards rainfall and temperature variability. Data on climate variables (1986-2015) and maize y...
Abstract: Climate variability increasingly affects the livelihoods of smallholder farmers by reducing agricultural crop production. Moreover, better understanding of climate variability together with the perception of smallholder farmers is essential to devise proper strategies that enhance adaptive capacity. In light of these, this study was conducted to analyses climate variability, farmer’s perception and adaptation options in rural areas of Dire Dawa. To achieve this aims, climate data...
Abstract: This study was conducted in Sodo District of Gurage Zone, located in Southern Ethiopia. The main objective of the study was to examine the effect of climate variability on maize and Enset production and synthesize farmers` perception towards climate variability in the study area. Particular emphasis was given to examine the variability and trends of key climate variables, noticeably, rainfall and temperatures variation. Climate variability was examined and discussed in this study, ...
n this study, among household heads who participated in this study 81.06% (95% CI 78.5, 83.6) were willing to pay for improved solid waste management service.
Abstract: Mafic to ultramafic rocks occurring in the Lechana area forms part of the Archean high-grade Motloutse Complex terrane in eastern Botswana. Their occurrence as inclusions (displaced fragments) within ~2.6 Ga tonalite gneiss indicates that they are older than ~2.6 Ga. The ultramafic rocks – peridotite and pyroxenite – are widespread in the mapped area as layers, with some layers rich in pyroxenite, others rich in peridotite, and a third type of layer made up of peridotite with p...
Abstract: The concentrations of heavy metals in municipal solid waste (MSW) reflect the amount of metals in products and are directly related to the amount of metals transferred to disposal sites. This study was conducted on MSW dumping sites at Selate and Kile sites in Harar City, Harari Regional State, Ethiopia to investigate the concentrations of some heavy metals in decomposed municipal solid waste and soil. From both dumping sites separately six decomposed waste sampling points were sel...
Abstract: In Ethiopia, the need for pesticides in improved agriculture is increasing but unwise application it has a subsequent effect on honeybees. Hence, the study was aimed to assess beekeeping and pesticide application practices and to identify the toxicity of pesticides on honeybee (Apis mellifera bandasii) at Lemo district, Hadiya Zone, Southern Ethiopia. Questionnaires were organized to collect survey data. Toxicity of pesticides were identified using laboratory via feeding, contact a...
Abstract: An experiment was conducted at Haramaya University, eastern Ethiopia in 2016 main cropping season, to assess the response of chickpea varieties to Rhizobium and P fertilizer rate. Factorial combinations of three ‘Kabuli’ chickpea varieties (Arerti, Ejere and Habru), four rates of phosphorus (0, 10, 20 and 30 kg P ha-1) with and without rhizobium inoculants were laid out in a randomized complete block design with three replications. The main effects of variety had significant ef...
Abstract: The experiment was undertaken to assess Rhodes grass yield and nutritional quality at different harvesting days and levels of N fertilizer application grown under irrigation at Gewane, Afar region. The field experiment was arranged in a 3 x 4 factorial randomized complete block design with three replications. The treatments were three levels of harvesting days (60, 90 and 120 days) and four level of N fertilizer application (0, 23, 46 and 69 kg ha-1 ). Plant height (PHT), number of...
Abstract: The study was conducted in Lume and Adami Tulu Jido Kombolcha (ATJK) districts of the East Shoa Zone, with the objectives to assess the existing status of feed resource in relation to climate change, and examine chemical composition and IVDMD of the major feed resources. One hundred twenty respondents (60 from each districts) were purposively used for the interviews. For sample collection, the grazing land was stratified based on the grazing land present in the study area as protec...
Abstract: The Kgagodi basin is located at 22°28'26.67"S and 27°34'54.10"E, about 7 km South of the Kgagodi village, Central Botswana. This structure is buried by sediments thus it has no pronounced surficial expression. The Kgagodi basin has been suggested to represent an intersection of two fault lines thereby making it a prospective hydrological target. Investigating the Kgagodi basin allows the understanding of the impact process and its effects on geological formations. The curren...
Abstract: Fly ash was explored as a raw material for the production of three fly ash-based coagulants being raw, calcined and calcined– sodium hydroxide complex coagulants. Calcined fly ash and calcined fly ash – sodium hydroxide complex coagulants were prepared by calcining raw fly ash at a temperature of 800ºC and all three were acid washed with hydrochloric acid before being used as coagulants. A fly ash sample from a local coal fired power plant was characterization by means of an X...
Abstract: A combination of petrography and geochemistry (XRF, ICP-OES and ICP-MS) was utilized in order to investigate the magma source(s), magma evolution and petrogenesis implications of the Kgwebe Volcanic Formation (KVF) rock units in the Ghanzi-Chobe Belt portion of the Kalahari Copper Belt (NW Botswana). Based on their texture, the KVF rock units were discriminated into amygdaloidal rocks, porphyritic mafic flows, pyroclastic rocks, porphyritic subvolcanic bodies, quartz-feldspar ...