Download or read book Soil and Water Conservation Manual for Eritrea written by Amanuel Negassi and published by . This book was released on 2002 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Landscapes and Landforms of the Horn of Africa written by Paolo Billi and published by Springer Nature. This book was released on 2022-09-30 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on regions for which until now the geomorphology was very poorly studied and relatively unknown. Nevertheless, the landforms and landscapes of the Horn of Africa are highly attractive, diverse and in a few cases unique, since they span very different environments, from highland plateaus and mountains to lowlands (even below sea level) and coastlines with a high degree of diversity and from monsoon to arid climate conditions. The main topics addressed in the book include the links between the geological evolution and the current large scale geomorphology of the Horn of Africa; the large differences between the highlands and lowlands climate, river hydrology and their variation through time within a climate change perspective. This part of the world was home of the very first hominids. The landscape in which they lived and evolved throughout the Pleistocene is described in comparison with the arid and inhospitable, though immensely scenic, environment of today. Perennial and ephemeral rivers with very different morphology, processes, and hydrology drain the area, and, in combination with the past and recent uplift, substantially contributed to provide the region with peculiar landscapes and landforms. Long lasting weathering and erosion processes result in a typical inselberg landscape such as the Bur region, or the currently exposed flatland of old peneplain surfaces. Their changes through time, induced by both natural and anthropogenic factors, are addressed by a couple of case studies. Though the region has few inhabitants, they had to struggle to find their livelihood in a land that offers poor resources. This resulted in landscape change and land degradation. Examples of human impact on the landscape are presented at different scales. This book provides readers interested in geography and geomorphology with essential scientific and educational information on the Landscapes and Landforms of Eritrea, Djibouti and Somalia through simple, though scientifically, rigorous texts illustrated with several color maps and photos. One main prerogative of this book is therefore to give an insight into a region of the world where, for geographical and historical constraints, geomorphological investigation was very limited, thus enriching its intrinsic informative value.

Download or read book Sustainable Agricultural Development written by Mohamed Behnassi and published by Springer Science & Business Media. This book was released on 2011-02-09 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to many challenges (i.e. climate change, energy, water and land shortage, high demands on food, land grabbing, etc.), agriculture production potential is expected to be seriously affected; thus, increasing food insecurity and hunger in many already affected regions (especially in Africa). In this context, sustainable agriculture is highly recommended as an eco-system approach where soil, water, plants, environment and living organisms live in harmony. Innovative technologies and research should be developed to ensure sustainable agriculture and productivity using modern irrigation systems, improved varieties, improved soil quality, etc. In the meantime, the preservation of natural environment should be based on resource conservation technologies and best management practices. Sustainable Agricultural Development, not only raises the serious ethical and social issues underlying these huge environmental problems, but also aims at presenting successful experiences from all over the world in relation with sustainable farming, sustainable management of water and land resources, and innovative processes in livestock production. It also aims at providing inputs to decision making processes and encouraging the transfer of relevant know-how, technologies and expertise to different countries where similar agro-climatic conditions may exist; thus saving precious resources and promoting sustainable agricultural development as a relevant approach to tackle the food security challenge. Finally, this book focuses on the paradigmatic and policy dimensions and call for an innovative approach by analyzing the key themes in a complex and interrelated manner.

Download or read book Managing Land written by and published by World Agroforestry Centre. This book was released on 2005 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Fertility and Land Productivity written by C. K. K. Gachene and published by . This book was released on 2003 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecoforum written by and published by . This book was released on 2003 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil and Water Management in Spate Irrigation Systems in Eritrea written by Mehreteab Tesfai Hadera and published by . This book was released on 2001 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spate irrigation has been practised over 100 years in the Red Sea coastal zone of Eritrea such as the Sheeb area. Main problem of the spate irrigation system is water shortage caused by irregular rainfall in the highlands of Eritrea and breaching of the irrigation structures by destructive big floods. Annually, a tremendous amount of soil with nutrients is eroded from the adjacent highlands, transported by seasonal streams (wadis) and deposited on the lowlands in the irrigated fields. The dominant types of soils of Sheeb area are the Fluvisols, which have good physical and chemical properties. The annual sedimentation on the spate fields enables the farmers to harvest a crop without application of fertilisers. A nutrient balance study revealed no soil mining in the spate fields. Farmers in Sheeb could obtain a more uniform water distribution over their fields with better levelling. Of the total area of Sheeb (8,000 ha), about 3,160 ha of land was classified as highly and moderately suitable for spate irrigation. When the flood diversion structures (at wadis Laba and Maiule) are made more permanent, an additional 2, 000 ha of land can be irrigated. In general, spate irrigation production system is a 'cost effective' system if the irrigation structures are properly maintained at low cost and if the fields receive enough water and nutrients.

Download or read book The Kusa Experience written by Paul Goldsmith and published by World Agroforestry Centre. This book was released on 2005 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nile River Basin written by Assefa M. Melesse and published by Springer Science & Business Media. This book was released on 2014-02-13 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive overview of the hydrology of the Nile River, especially the ecohydrological degradation and challenges the basin is facing, the impact of climate change on water availability and the transboundary water management issues. The book includes analysis and approaches that will help provide different insights into the hydrology of this complex basin, which covers 11 countries and is home to over 300 million people. The need for water-sharing agreements that reflect the current situations of riparian countries and are based on equitable water- sharing principles is stressed in many chapters. This book explores water resource availability and quality and their trends in the basin, soil erosion and watershed degradation at different scales, water and health, land use and climate change impact, transboundary issues and water management, dams, reservoirs and lakes. The link between watershed and river water quantity and quality is discussed pointing out the importance of watershed protection for better water resource management, water accessibility, institutional set-up and policy, water demand and management. The book also presents the water sharing sticking points in relation to historical treaties and the emerging water demands of the upstream riparian countries. The need for collaboration and identification of common ground to resolve the transboundary water management issues and secure a win-win is also indicated.

Download or read book Water from Ponds Pans and Dams written by and published by World Agroforestry Centre. This book was released on 2005 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fruits and Nuts written by Agnes Nyambo and published by . This book was released on 2005 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agroforestry Handbook for the Montane Zone of Uganda written by Alex Lwakuba and published by . This book was released on 2003 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Overview of water and soil nutrient management under smallholder rain fed agriculture in East Africa written by Mati, Bancy Mbura and published by IWMI. This book was released on 2006-05-02 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural extension / Agroforestry / Farmers’ associations / Non-governmental organizations / Fertilizers / Soil fertility / Water storage / Pitcher irrigation / Spate irrigation / Sugarcane / Bunds / Cropping systems / Ridging / Tillage / Terraces / Water harvesting / Water conservation / Soil conservation

Download or read book Nile and Grand Ethiopian Renaissance Dam written by Assefa M. Melesse and published by Springer Nature. This book was released on 2021-08-31 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a contribution by the presenters of the 2020 International Conference on the Nile and Grand Ethiopian Renaissance Dam (GERD). The Nile basin is facing unprecedented level of water right challenges after the construction of GERD has begun. Ethiopia, Egypt and Sudan have struggled to narrow their differences on filling and operation of the GERD. The need for science and data-based discussion for a lasting solution is crucial. Historical perspectives, water rights, agreements, failed negotiations, and other topics related to the Nile is covered in this book. The book covers Nile water claims past and present, international transboundary basin cooperation and water sharing, Nile water supply and demand management, Blue Nile/Abbay and Grand Ethiopian Renaissance Dam, land and water degradation and watershed management, emerging threats of the Lakes Region in the Nile Basin, and hydrologic variation and monitoring. This book is beneficial for students, researchers, sociologists, engineers, policy makers, lawyers, water resources and environmental managers and for the people and governments of the Nile Basin.

Download or read book More Forage More Milk written by Aichi J. Kitalyi and published by World Agroforestry Centre. This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Useful Trees and Shrubs for Kenya written by and published by . This book was released on 2005 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Conversion Soil Degradation Farmers Perception Nexus written by Mekuria Argaw Denboba and published by Cuvillier Verlag. This book was released on 2005 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: