Abstract: Biogas generation and its utility as an alternative renewable energy source are gaining attention, particularly among developing countries. In this study, biogas production was evaluated from Gosspium barbadense leaves (GB) and cow dung (CD) co-digestion in five mixed ratios (A =100% GB, B=25 % GB+75% CD, C=50%GB+50%CD, D=75 %GB+25%CD, E= 100% CD.) under mesophilic conditions using batch digesters. The daily biogas production was subsequently measured by the water displacement meth...
Abstract: Soil fertility depletion is the major challenge for agricultural production in southeastern highlands of Ethiopia and particular in the study area. Inadequate information on soil fertility status is one of the main constraints for site-specific appropriated soil fertility managements in the study area. The study was conducted to assess soil fertility status and mapping under different land use types along toposequence in Dinsho District of Bale highland Southeastern, Ethiopia. Base...
Abstract: This study was conducted in Jallo Muktar forest, Western Hararghe Zone, Ethiopia. Data were collected from December 2018 to January 2019 with the aim of woody species diversity and carbon stock estimation along altitudinal gradients. Transects were laid out on three altitudinal gradients namely lower altitude (LA:2060 – 2410 m.a.s.l.), middle altitude (MA: 2411– 2760 m.a.s.l.) and upper altitude (UA: 2761 -3017 m.a.s.l). A total of 60 sample plots of 20m×20m (400 m2) in each a...
Abstract: Renewable resources play a significant role in reducing carbon dioxide emissions around the world, and with this in mind, biomass and waste is a candidate to be one of the most widely utilized renewable energy resources. Therefore, this research was conducted to investigate the production of biogas from saw dust, cow dung in solo or mix through anaerobic digestion with five treatment ratios, under mesophilic condition (38ºC) using batch digesters at Haramaya University for 30 days...
Abstract: iogas technology, which is meant to produce methane rich gas through anaerobic digestion of biological materials, is an environmentally friendly technology that decreases environmental pollution through decomposing organic wastes and positively impacts the socio-economy of the society. Therefore, the research was conducted to investigate the production of biogas from corn Stover co-digested with goat manure through anaerobic digestion. In this study, five different proportions of C...
Abstract: Land cover and climate changes remain the greatest challenges to the conservation of montane birds; consequently, understanding the effects of these threats can inform conservation efforts. Conservation of birds demands data, not only for the present status but also for projections of future status and vulnerability. This study investigated the impacts of land cover and climate changes on the distribution of bird species of concern in Malawi. The CA-MC model was used to predict fut...
Abstract: The study was conducted with the objective to evaluate the effect of land use types and soil depth on selected soil physicochemical properties. A total of 24 disturbed and 24 undisturbed soil samples were taken from the depth of 0-20 and 20-40 cm for the determination of soil physicochemical properties. The soil samples were analyzed with standard laboratory procedures and varied significantly (P < 0.01 and < 0.05) among land use types and soil depths. Sand, silt FC,PWP,AWHC,Soil O...
Abstract: Biogas is the methane rich gas produced by anaerobic breakdown of organic wastes with the help of methanogenic bacteria under oxygen free environment. The objective of this study was to evaluate production of biogas from co-digestion of goat manure and sludges of beer under anaerobic condition. The three containers were interconnected with a plastic tube having a diameter of 1 cm. The acidified brime solution was prepared by dissolving NaCl in distilled water with few drops of sulf...
Abstract: Soil erosion has become one of the global environmental hazards that limits the survival of people today and hinders sustainable socio-economic development worldwide. It is most severe in the tropical and subtropical regions of the world, especially in developing countries like Ethiopia. Estimating the extent of soil loss and understanding the spatial distribution of erosion-prone areas are critical for planning and effectively implementing soil conservation measures with limited r...
Abstract: Homegarden agrobiodiversity practices are well developed and highly appreciated for the agroecosystem sustainability and socio-economic contributions to small holder farmers in Africa particularly in Ethiopia. There are a number of studies, which have been analyzed the homegarden agrobiodiversityin Africa as well as in Ethiopia.However, a comprehensive scientific study on the homegarden practices, its contribution to the economic and livelihood of the people were not done.Therefore...
Abstract: Forests play significant role in climate change mitigation through capturing atmospheric carbon. Ethiopia, despite being one of the biodiverse countries at the global, it has limited forest resources distributed in certain parts of its territory. The moist evergreen Afromontane forests of Western Ethiopia are among the Ethiopian forests that contribute significantly to the climate change mitigation. Jorgo Wato Forest is one of the moist Afromontane forests in Western Ethiopia that ...
Abstract: This study was conducted in Awash National Park, Ethiopia, to analyse woody species composition and estimate carbon stock potential of woody species in different vegetation types. A total of 80 quadrats of 20m x 20 m, 5m x 5m and 1m x 1m with 16 horizontal transect lines were used to collect information on tree, shrub, and litters and soil respectively in the four vegetation types. A total of 52 woody species belonging into 23 families with stem number of 1369 individual/ha were re...
Abstract: Urban vegetation stands as a pivotal ecosystem for the provision and support of ecosystem services in towns and cities leading to the attainment of SDG 11: “Make cities and human settlements inclusive, safe, resilient and sustainable.” In pursuit of this goal, this study aimed at determining the present urban tree species richness, diversity and carbon stock potential in Lilongwe City, Malawi. Six distinct urban forest types were identified: Cemeteries, Institutional lands, Par...
Abstract: Land degradation and climate change is the global challenge, where their impact is profoundly seen in developing countries including our country (Woolf et al., 2018). The Ethiopian Productive Safety Net Program (PSNP) is one of the national climate smart initiatives (CSI) implemented to address the persistent land degradation and climate challenges in the country. However, the PSNP effect on Land Use Land Cover (LULC) changes and its carbon storage potential is not yet studied at l...
Abstract: Previous vegetation studies and their ecosystem services have concentrated largely on natural ecosystems, with less emphasis on managed areas like agricultural systems. Moreover, the protection and conservation of vegetation would be not only successful in protected areas alone but also in the agriculture environment and surrounding it. More recently, human-altered ecosystems such as conventional agroforestry like agri-silviculture have become increasingly conscious of their abilit...