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Author: William Critchley Publisher: Routledge ISBN: 1136273050 Category : Nature Languages : en Pages : 219
Book Description
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.
Author: William Critchley Publisher: Routledge ISBN: 1136273050 Category : Nature Languages : en Pages : 219
Book Description
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.
Author: Saeid Eslamian Publisher: John Wiley & Sons ISBN: 1119775981 Category : Technology & Engineering Languages : en Pages : 62
Book Description
Water harvesting is gaining more and more recognition as the sustainable and resilient alternative to other water supply options. It is economically viable, socially compatible and environmentally friendly. Water harvesting has proven to be a robust solution to overcome or reduce water shortages all over the world. To apply this in a sustainable and effective way, it is important to understand exactly where it can be applied to make full use of its potential. The Handbook of Water Harvesting and Conservation: Case Studies and Application Examples is the most comprehensive, up-to-date and applied casebook on water harvesting and conservation yet published. The editors bring together the many perspectives into a synthesis that is both academically-based and practical in its potential applications. The Handbook of Water Harvesting and Conservation: Case Studies and Application Examples will be an important tool for education, research and technical works in the soil, water and watershed management area, and will be highly useful for drought strategy planning, flood management and adaptation to climate change in all urban, agricultural, forest, rangeland areas.
Author: Paolo Billi Publisher: Springer Nature ISBN: 3031054873 Category : Science Languages : en Pages : 407
Book Description
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.
Author: Vasileios A. Tzanakakis Publisher: MDPI ISBN: 3039433067 Category : Science Languages : en Pages : 290
Book Description
This Book includes selected papers that has been published in the Water journal Special Issue (SI) on Water Supply and Water Scarcity. Moreover, an overview of the SI is included. The papers selected for publication in the SI include review and research papers on water history, on water management issues under water scarcity regimes, on rainwater harvesting, on water quality and degradation, and on climatic variability impacts on water resources. Overall, the issue identify and highlight the main challenges in water sector, and particularly in management and protection of water resources and in use of alternative (non-conventional) water resources, especially in areas with demographic change and climate vulnerability in order to achieve sustainable and secure water supply. Furthermore, general guidelines and possible solutions for an improved and sophisticated water management system are proposed and discussed, such as the adoption of advanced technological solutions and practices that improve water-use efficiency and the use of alternative water resources, to address the growing environmental and health issues and to reduce the emerging conflicts among water users.
Author: Susan Scribner Publisher: World Bank Publications ISBN: 9780821329948 Category : Social Science Languages : en Pages : 108
Book Description
World Bank Technical Paper No. 272. Public examinations in developing countries play a critical role in the selection of students for participation in the educational system. The exams dictate what is taught, how it is taught, and what is and is not learned. They are academic, have little reference to the everyday lives of the students, are limited to pencil-and-paper tests, and are biased toward high-achievers. Thus, students who leave school at an early stage are provided with inadequate opportunities for acquiring relevant knowledge and skills. This study identifies practices associated with examinations that may create inequities for some students. These include scoring procedures, the use of culturally inappropriate questions, fee requirements, private tutoring, exams in a language unfamiliar to the student, and a variety of malpractices. Quota systems that deal with differences in performance associated with location, ethnicity, or language group membership also creates inequities for some students. The report concludes that the limited available evidence does not indicate that examinations create inequities between genders and that ranking schools on the basis of students' examination performance may not provide a fair assessment of the work of schools.
Author: Ronald L. Parker Publisher: World Bank Publications ISBN: 9780821331545 Category : Business & Economics Languages : en Pages : 108
Book Description
This study incorporates data from comparable surveys across five African countries - Ghana, Malawi, Mali, Senegal, and Tanzania - to analyze how small and micro enterprises have been positively and negatively affected by policy liberalization schemes. Som
Author: Nat J. Colletta Publisher: World Bank Publications ISBN: 9780821336748 Category : History Languages : en Pages : 378
Book Description
World Bank Discussion Paper No. 331. With the assistance of Emilio Mondo, Taimi Sitari, and Tadesse A. Woldu. Provides a detailed analysis of the intricate nature of the political, economic, and sociocultural issues that arise during the transition from war to peace in Ethiopia, Namibia, and Uganda. These countries offer a unique range of conditions and program models, as well as a variety of successes and failures from which to learn. A recently released overview, The Transition from War to Peace in Sub-Saharan Africa (Stock no. 13581; ISBN 0-8213-3581-2), is based on these country studies and a synthesis of reports of demobilization and reintegration programs in several other countries.
Author: Gita Gopal Publisher: World Bank Publications ISBN: 9780821334928 Category : Business & Economics Languages : en Pages : 146
Book Description
Draws on the experience of Bulgaria to study the problems encountered in financing government operations in the transition economies. This report describes Bulgaria's experience in addressing external shocks to its economy and large declines in the ratio of tax revenues to GDP. The book provides broad coverage of the problems many other governments face in transforming their systems of taxation in the transition to a market economy. Chapters discuss taxation and incentives, government and households, indirect taxation, and financing of social expenditures. Attention is also drawn to the implementation of a value-added tax and to policies on fuel taxes. The report facilitates an understanding of the differences between actual and optimal policies as governments seek to establish a framework for resolving their budgetary problems in the transition.
Author: Peter Harrold Publisher: World Bank Publications ISBN: 9780821334492 Category : Business & Economics Languages : en Pages : 72
Book Description
The persistent inequality between women and men constrains society to lower levels of productivity and economic growth. The evidence for taking corrective action is now more compelling than ever. This report draws on case studies and other evidence to show how public policy can and should support services and infrastructure where the social returns are the highest and the use by women the greatest. It reviews progress made to date on gender issues and explores why inequalities persist. The report also stimulates ideas for creative solutions by pointing out innovative and less-than-obvious strategies that have proved successful. In Morocco, for instance, a study shows that paving the public road to school increases a girl's probability of attending classes by 40 percent. Also available: Toward Gender Equality: The Role of Public Policy on CD-ROM (ISBN 0-8213-3471-9) Stock No. 13471.
Author: William Critchley
Author: William Critchley
Author: Saeid Eslamian
Author: 
Author: Paolo Billi
Author: Vasileios A. Tzanakakis
Author: Susan Scribner
Author: Ronald L. Parker
Author: Nat J. Colletta
Author: Gita Gopal
Author: Peter Harrold