Soil and Water Management in Spate Irrigation Systems in Eritrea PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Soil and Water Management in Spate Irrigation Systems in Eritrea PDF full book. Access full book title Soil and Water Management in Spate Irrigation Systems in Eritrea by Mehreteab Tesfai Hadera. Download full books in PDF and EPUB format.
Author: Mehreteab Tesfai Hadera Publisher: ISBN: Category : Irrigation Languages : en Pages : 234
Book Description
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.
Author: Mehreteab Tesfai Hadera Publisher: ISBN: Category : Irrigation Languages : en Pages : 234
Book Description
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.
Author: Abraham Mehari Haile Publisher: CRC Press ISBN: 1439828385 Category : Science Languages : en Pages : 235
Book Description
An in-depth assessment of the century-old Wadi Laba indigenous spate irrigation system in Eritrea. This system has relied on earthern and brushwood structures and customary water rules to support subsistence livelihoods of the Wadi Laba communities for many years. This research analyses the effectiveness of the introduction o
Author: Frank van Steenbergen Publisher: Food & Agriculture Organization of the UN (FAO) ISBN: 9789251066089 Category : Science Languages : en Pages : 256
Book Description
Spate irrigation has been largely neglected in the technical literature.
Author: Mark Anthony Benvenuto Publisher: Walter de Gruyter GmbH & Co KG ISBN: 3110724049 Category : Science Languages : en Pages : 233
Book Description
This volume includes several perspectives on how to connect the United Nations Sustainable Development Goals with the 12 principles of green chemistry, and green chemistry education.
Author: Mark Giordano Publisher: CABI ISBN: 1845933265 Category : Technology & Engineering Languages : en Pages : 298
Book Description
The fifteen chapters of this book analyse the living community-based water laws in Africa, Latin America and Asia and critically examine the interface between community-based water laws, formal water laws and a variety of other key institutional ingredients of on-going water resources management reform.
Author: Eiman Mohamed Fadul Bashir Publisher: CRC Press ISBN: 1000047180 Category : Science Languages : en Pages : 134
Book Description
Flood based irrigation in particular spate irrigation relies on variable flood scenarios occurring every year. Management of spate flood for spate irrigation must cope with the variability and uncertainty of water supply. Coping with water supply risks is often the only way to harness the opportunities for a productive use of water in arid environment. Integrating and strengthening community responses into irrigation policies and improvement plans could ensure sustainable and productive spate irrigated systems that can achieve food security for the poor population. This research analyses and evaluates risks and coping strategies developed by farming communities in the Gash spate irrigation system in Sudan, Eastern Africa. The research has synthesized different coping strategies developed by farmers, water user associations and water managers to cope with low, high and untimely flood risks. The research provide different frameworks that can assist with the identification of risk sources, pathways and propagation as well as evaluation of locally developed strategies at field, secondary and intake systems. The findings of this study contribute to scarce knowledge on spate irrigation system and provide scientifically sound and evidence-based insights to aid informed policy and decision making to improve productivity and sustainability of the spate irrigation systems.
Author: Food and Agriculture Organization of the United Nations Publisher: Food & Agriculture Org. ISBN: 9251351600 Category : Political Science Languages : en Pages : 106
Book Description
FAO Eritrea, in partnership with the Ministry of Agriculture is implementing the national component of a global project entitled “Developing capacity in Agriculture Innovation System project: Scaling up the Tropical Agriculture Platform Framework”. The project aims to strengthen capacities to innovate for climate resilient agriculture and food system. One of the key activities of the project is the assessment of the Agricultural Innovation System (AIS) in Eritrea The assessment had the objectives to: identify critical gaps, needs, opportunities, and good practices to formulate workable recommendations aiming at strengthening and making AIS more effective; and develop an understanding of AIS and how it functions and supports climate-relevant transformation of agriculture and food systems. This report presents the main findings of the AIS assessment in Eritrea. The study identified major bottlenecks and entry points for strengthening AIS as well as inform policy and decision makers on AIS performance and made recommendations for its improvement.
Author: C. Spedding Publisher: Springer Science & Business Media ISBN: 9401164088 Category : Technology & Engineering Languages : en Pages : 197
Book Description
It would have been very easy to expand on all the sections of the first edition but I decided to try to retain the relatively short, introductory nature of the book. Some new material has been added, particularly where it has been possible to update data, and there has been some change of emphasis in places, in order to reflect changing world conditions. The book retains its original purpose, however, of introducing systems thinking as applied to agriculture. I am grateful to Angela Hoxey for help in preparing this edition, especially in relation to the preparation of tables and figures. C. R. W. SPEDDING v Preface to the First Edition The agricultural systems of the world represent a very large subject. Their study involves a great deal of fairly detailed knowledge, as well as a grasp of the structures and functions of the systems themselves. This book has been written as an introduction to such a study and it concentrates on an overall view, rather than on the detail, partly because of the need to relate the latter to some larger picture in order to appreciate the relevance and significance of the detail. This problem-of seeing the relevance of component studies and the significance of physical, biological and economic detail, and indeed principles-is encountered by many agricultural students right at the beginning of their university careers.
Author: Amjad Almusaed Publisher: BoD – Books on Demand ISBN: 1789237122 Category : Science Languages : en Pages : 360
Book Description
This book is intended as both an introduction to the discipline for students of landscape architecture, architecture, and planning, and a source of continuing interest for more experienced environmental designers. The book offers various materials for landscape architects and other planning professionals. The book is divided into 4 parts and 17 chapters. Part I "Introduction to the Landscape Architecture Theme" is general reading on landscape architecture. Part II "Art's Replica and Landscape Architecture Model" includes three chapters. This part represents a theoretical and sensitive visual interpretation of landscape architecture. Part III "Sustainable Prototypes of a Contemporary Landscape Architecture" includes four chapters, with sustainability as a concept and guiding thought. Part IV "Landscape Architecture Around the World (Study Cases)" includes 9 chapters with many examples from different geographical practical cases.
Author: Mehreteab Tesfai Hadera
Author: Mehreteab Tesfai Hadera
Author: Abraham Mehari Haile
Author: Frank van Steenbergen
Author: Frank van Steenbergen
Author: Mark Anthony Benvenuto
Author: Mark Giordano
Author: Eiman Mohamed Fadul Bashir
Author: Food and Agriculture Organization of the United Nations
Author: C. Spedding
Author: Amjad Almusaed