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basins; head; research and development; rivers; sand; Egypt; Ethiopia; Sudan
Abstract:
... Water consumed upstream does not flow downstream. Consequently, upstream–downstream relations along a shared river may entail competitive use or even conflict. What is the role of communication in preventing or transforming such behavior? The present article addresses this question based on lessons learned in 3 Dialogue Workshops carried out between 2002 and 2004 in the Eastern Nile Basin, with pa ...
... The bread making quality of Ethiopian cultivars was studied using 18 quality traits at low and high protein environments. Significant variation was observed between genotypes with a broad range of milling, rheological and baking traits. Three different quality prediction models were constructed explaining 48% to 73% of the variation of mixing time and loaf volume, respectively. SDS-sedimentation a ...
... Soil organic matter (SOM) is a fundamental component of soil and the global C cycle. We used C (1s) near-edge x-ray absorption fine structure (NEXAFS) and synchrotron-based Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy to speciate C and investigate the influence of land use on the composition of SOM in the humic substances extracted from clay and silt fractions. S ...
... Child stunting in Ethiopia has persisted at alarming rates, despite enormous amounts of food aid, often procured in response to shocks. Using nationally representative data, the study finds that while harvest failure leads to child growth faltering, food aid affected child growth positively and offset the negative effects of shocks in communities that received food aid. However, many communities t ...
biodiversity; cultural heritage; environmental knowledge; globalization; indigenous knowledge; mountains; research and development; sustainable development; urbanization; Ethiopia
Abstract:
... Ethiopia has the largest mountainous land mass in Africa, with a diverse and complex environment. The peoples of Ethiopia reflect this diversity in their cultures. The integrity and traditional knowledge embedded in these cultures is being eroded through modern education and cultural globalization. Modern education divorces students from the traditional ecological knowledge of their communities, a ...
... In the early 1980s, a paradigm shift occurred in the field of food security, following Amartya Sens (1981) claims that food insecurity is more of a demand concern, affecting the poor's access to food, than a supply concern, affecting availability of food at the national level. Despite the wide acceptance of Sen's thinking, many controversies including the relative importance of supply-side versus ...
... Use of stone bunds to enhance soil and water conservation was first introduced to Tigray, northern Ethiopia in 1981. This study was designed to examine the factors that control the effectiveness of bunds installed on cropland. Qualitative and quantitative assessments of soil loss and sediment accumulation were conducted on 202 plots at 12 representative sites in Dogu'a Tembien district. Mean annua ...
basins; irrigation water; planning; runoff; water management; Ethiopia; Nile River
Abstract:
... Ethiopia is the main source of the Nile River, and the country urgently needs water for irrigation and hydro-electric power development. To-date, however, Ethiopia is the country in the Eastern Nile basin that uses the least amount of water from the Nile run-off. There is no basin-wide agreement on the utilization and management of the water resources of the Nile Basin. Unilateral planning and imp ...
... One of the principal aims of Green Chemistry is to bring the benefits of modern chemical manufacture to developing countries without imposing the environmental burden that has plagued the industrialised world. In this paper we present early results from a comparative study of greener extraction methods (microwaves, ultrasound, supercritical fluids) on Artemisia afra, a plant traditionally employed ...
conservation areas; global change; policy analysis; radio; research and development; snow; Bolivia; Egypt; Ethiopia; Kenya; Mexico; Nepal; Sudan
Abstract:
... What do the snow leopard in the Kangchenjunga Conservation Area in Nepal, flood water diversion on Mount Kenya, waste separation in Manantlán (Mexico), conflict transformation workshops in Sudan, Ethiopia and Egypt, law and policy analysis with vigilantes in the Tunari park in Bolivia, and a radio program for Nepali migrants have in common? They are all so-called Partnership Actions for Mitigating ...
... Two similar field trials were carried out during 2003 in a hot tropical region of eastern Ethiopia to investigate the effect of leaf and soil applied paclobutrazol on the growth, dry matter production and assimilate partitioning in potato. A month after planting paclobutrazol was applied as a foliar spray or soil drench at rates of 0, 2, 3, and 4 kg a.i. paclobutrazol ha-1. Plants were sampled dur ...
... This article tests the hypothesis that anthropometrical outcomes in preschool children are a function of complex interaction between food, nutrition, health, and other physical environmental conditions within which children live and grow. A system of simultaneous equations is used to test the above hypothesis using data from an Ethiopian highland community. The results show that a child's nutritio ...
base flow; basins; land degradation; land use; population density; population growth; rain; research and development; rivers; runoff; sediment yield; soil; soil erosion; water conservation; watersheds; Egypt; Eritrea; Ethiopia; Sudan
Abstract:
... Much concern has been raised about population increase in the highlands of Ethiopia and its potential to decrease runoff from the upper Nile Basin to the lowland countries of Sudan and Egypt. The present article examines long-term data on population, land use, land management, rainfall, and surface runoff rates from small test plots (30 m²) and micro-catchments (73–673 ha) in the highlands of Ethi ...
... The Paleogene record of Afro-Arabia is represented by few fossil localities, most of which are coastal. Here we report sedimentological and paleontological data from continental Oligocene strata in northwestern Ethiopia. These have produced abundant plant fossils and unique assemblages of vertebrates, thus filling a gap in what is known of Paleogene interior Afro-Arabia. The study area is approxim ...
... Plant community types and botanical composition of herbaceous and woody plants in the Borana lowlands were investigated by multivariate methods (TWINSPAN and DCA) based on 125 plots of size 20 m × 20 m sampled from three districts across different functional land use units. By TWINSPAN, eight plant communities were identified: (i) Acacia drepanolobium-Pennisetum mezianum, (ii) Bidens hil ...
basins; irrigation; lakes; politics; socioeconomics; Egypt; Ethiopia; Nile River; Sudan
Abstract:
... The following article gives an overview of Sudanese water development facts and potentials and their regional impact on the other countries sharing the Nile River and beyond. These are set in relation to the unique environmental, socio-economic and political context of Sudan. While the availability of land for irrigation is great, water is limited due to Sudan’s situation upstream of Egypt and dow ...
Boswellia; trees; population structure; tree damage; environmental factors; anthropogenic activities; density; spatial distribution; tree and stand measurements; stand management; buried seeds; natural regeneration; oleoresins; forest economics; Ethiopia
... Teff (Eragrostis tef) is the most important staple cereal food crop in Ethiopia. It accounts for 25% of the annual gross grain production. Teff rust Uromyces eragrostidis is the most important and widely distributed teff disease in the country; it causes grain yield losses of 10%-41% annually. Presently, no teff germplasm immune to this disease has been found. The objectives of this study were to ...
... The antinutrient (raffinose oligosaccharides, tannins, phytic acid and trypsin inhibitors) composition and in vitro protein digestibility of eight improved varieties of Phaseolus vulgaris grown in Ethiopia were determined. Stachyose was the predominant α-galactosides in all haricot bean samples. Raffinose was also present in significant quantities but verbascose, glucose and fructose were not dete ...
... Five barley chloroplast DNA microsatellites (cpSSRs) were used to study genetic relationships among a set of 186 barley accessions—34 Hordeum vulgare ssp. spontaneum (HS accessions) from Morocco, Ethiopia, Cyprus, Crete, Libya, Iraq, Iran, Turkey, Afghanistan and Israel, 122 H. vulgare ssp. vulgare landraces (HV landraces) from Spain, Bolivia (old Spanish introductions), Morocco, Libya and Ethiopi ...
Glossina fuscipes; Glossina morsitans submorsitans; trapping; geostatistics; bait traps; citizen participation; Glossina pallidipes; vector control; population density; pest monitoring; population dynamics; insect control; Ethiopia
Abstract:
... Since 1996, tsetse (Glossina spp.) control operations, using odor-baited traps, have been carried out in the Luke area of Gurage zone, southwestern Ethiopia. Glossina morsitans submorsitans Newstead was identified as the dominant species in the area, but the presence of Glossina fuscipes Newstead and Glossina pallidipes Austen also was recorded. Here, we refer to the combined number of these three ...
... Vernonia galamensis is a wild plant from the family Asteraceae which is endemic to East Africa and has the potential to become a new oil crop for industrial uses. Its seed oil is rich in vernolic acid, a fatty acid of high interest for oleochemical applications. However, a breeding program for Vernonia galamensis cultivars with high seed and oil yields requires knowledge about the genetic variabil ...