a tradition in transition water management reforms and indigenous spate irrigation systems in eritrea phd unesco ihe institute for water education delft the netherlands

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A Tradition In Transition Water Management Reforms And Indigenous Spate Irrigation Systems In Eritrea

Author : Abraham Mehari Haile
ISBN : 1439828385
Genre : Science
File Size : 59. 51 MB
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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 of contemporary water laws and a new headwork which endevour to increase production and standard of living. The lack of success of the new approach, compared with traditional methods of water management are discussed.

Guidelines On Spate Irrigation

Author :
ISBN : 9251066086
Genre : Technology & Engineering
File Size : 27. 24 MB
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Spate irrigation is an ancient practice by which floodwater is diverted from its river bed and channelled to basins. Spate irrigation has evolved over the centuries and provided rural populations in arid and semi-arid regions with an ingenious way to manage their scarce water resources. It is different from conventional irrigation in many ways and therefore needs special skills and approaches that address the unpredictability and magnitude of spate floods and their high sediment load. The objective of this publication is to assist planners and practitioners in designing and managing spate irrigation projects looking at the hydrology, the engineering, the agronomy, the economics and local organization and rules. It is designed to be both a practical guidance document and a source of information and examples, based on experience from across the world in places where spate irrigation is practised.

Design Of Canals

Author : P.K. Swamee
ISBN : 9788132223221
Genre : Science
File Size : 83. 34 MB
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The book presents firsthand material from the authors on design of hydraulic canals. The book discusses elements of design based on principles of hydraulic flow through canals. It covers optimization of design based on usage requirements and economic constraints. The book includes explicit design equations and design procedures along with design examples for varied cases. With its comprehensive coverage of the principles of hydraulic canal design, this book will prove useful to students, researchers and practicing engineers. End-of-chapter pedagogical elements make it ideal for use in graduate courses on hydraulic structures offered by most civil engineering departments across the world.

Community Based Water Law And Water Resource Management Reform In Developing Countries

Author : Barbara C. P. Koppen
ISBN : 9781845933272
Genre : Law
File Size : 51. 32 MB
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The lack of sufficient access to clean water is a common problem faced by communities, efforts to alleviate poverty and gender inequality and improve economic growth in developing countries. While reforms have been implemented to manage water resources, these have taken little notice of how people use and manage their water and have had limited effect at the ground level. On the other hand, regulations developed within communities are livelihood-oriented and provide incentives for collective action but they can also be hierarchal, enforcing power and gender inequalities. This book shows how bringing together the strengths of community-based laws rooted in user participation and the formalized legal systems of the public sector, water management regimes will be more able to reach their goals.

Climate Variability And Change Hydrological Impacts

Author : Siegfried Demuth
ISBN : 1901502783
Genre : Technology & Engineering
File Size : 89. 56 MB
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Water Harvesting In Sub Saharan Africa

Author : William Critchley
ISBN : 9781136273056
Genre : Science
File Size : 82. 13 MB
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Agriculture in Sub-Saharan Africa is constrained by highly variable rainfall, frequent drought and low water productivity. There is an urgent need, heightened by climate change, for appropriate technologies to address this problem through managing and increasing the quantity of water on farmers’ fields – water harvesting. This book defines water harvesting as a set of approaches which occupy an intermediate position along the water-management spectrum extending from in situ moisture conservation to irrigated agriculture. They generally comprise small-scale systems that induce, collect, store and make use of local surface runoff for agriculture. The authors review development experience and set out the state of the art of water harvesting for crop production and other benefits in Sub-Saharan Africa. This includes an assessment of water harvesting schemes that were initiated two or three decades ago when interest was stimulated by the droughts of the 1970s and 1980s. These provide lessons to promote sustainable development of dryland agriculture in the face of changing environmental conditions. Case studies from eight countries across Sub-Saharan Africa provide the evidence base. Each follows a similar format and is based on assessments conducted in collaboration with in-country partners, with a focus on attempts to promote adoption of water harvesting, both horizontally (spread) and vertically (institutionalization). Introductory cross-cutting chapters as well as an analytical conclusion are also included.

Nile River Basin

Author : Assefa Melesse
ISBN : 9783319027203
Genre : Science
File Size : 29. 3 MB
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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.

Land And Water Productivity

Author : Zubair Tahir
ISBN : 9789290904359
Genre : Agricultural productivity
File Size : 23. 50 MB
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As a consequence of green revolution in 1960s, though irrigated areas and agriculture production has increased considerably, yields are still less as compared to various countries of the world. Furthermore, huge spatial variation in cropping pattern and productivity of land and water within irrigated agriculture of Pakistan has become a chronic issue. There are various reasons causing low production. These include farmers’ investment potential, physical environments, market mechanism and availability of water, which is the most precious input in farming. The role of irrigation water resources and its management is extremely important. The sustainability of agriculture can be largely insured through proper and better management of water resources. Indus Basin Irrigation System (IBIS) is basically supply-based by its design which means water is not supplied according to crop requirement. Low gross production is an inherent limitation of this supply-based system. The research activity aims to see the spatial variation in production across canal commands using gross production indicators i.e. Gross Value of Production (GVP) per unit of land and GVP per unit of water. Give of major network of 12, inter-linked and a total of 23 canals out of 45 canals of IBIS. The analysis is performed at the canal command level.

Rainfed Agriculture

Author : Suhas Pralhad Wani
ISBN : 9781845933890
Genre : Technology & Engineering
File Size : 38. 69 MB
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This book, which contains 14 chapters, covers all aspects of rainfed agriculture, starting with its potential, current status, rainwater harvesting and supplementary irrigation, to policies, approaches, institutions for upscaling, and impacts of integrated water management programmes in rainfed areas.

Water The Environment

Author : Rose
ISBN : 2881247474
Genre : Nature
File Size : 51. 63 MB
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This compilation of previously published papers provides insight into the differing approaches to water quality issues and the diversity of strategies in water quality management worldwide. The book is divided into two parts; the first deals with aspects of water quality in various countries and suggests remedies for the inadequacies of the current situation. Theoretical and practical topics are considered, including policy and resource management. The second part looks to the future with an emphasis on water as a world problem in both developed and developing countries. Aspects of the problem relating to seas, deserts, forests and freshwater are examined with special reference to planning, development and environmental impact analysis. Annotation copyrighted by Book News, Inc., Portland, OR

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