Use Of A Hydrological Model For Environmental Management Of The Usangu Wetlands Tanzania


Use Of A Hydrological Model For Environmental Management Of The Usangu Wetlands Tanzania
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Use Of A Hydrological Model For Environmental Management Of The Usangu Wetlands Tanzania


Use Of A Hydrological Model For Environmental Management Of The Usangu Wetlands Tanzania
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Author : Kashaigili, J. J., McCartney, Matthew, Mahoo, H. F., Lankford, B. A., Mbilinyi, B. P., Yawson, D. K., Tumbo, S. D.
language : en
Publisher: IWMI
Release Date : 2006

Use Of A Hydrological Model For Environmental Management Of The Usangu Wetlands Tanzania written by Kashaigili, J. J., McCartney, Matthew, Mahoo, H. F., Lankford, B. A., Mbilinyi, B. P., Yawson, D. K., Tumbo, S. D. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Wetland management categories.


This report presents the findings of a study to assess changes to flows into, and downstream of, the Usangu Wetlands, located in the headwaters of the Great Ruaha River, Tanzania. Hydrological data, in conjunction with remote sensing techniques, were used to provide insights into changes that have occurred to the Eastern Wetland. Results indicate that, between 1958 and 2004, inflows to the wetland declined by about 70 percent in the dry season months (July to November) as a consequence of increased human withdrawals, primarily for irrigation.



Agricultural Water Management In A Water Stressed Catchment Lessons From The Riparwin Project


Agricultural Water Management In A Water Stressed Catchment Lessons From The Riparwin Project
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Author : McCartney, Matthew P., Lankford, B. A., Mahoo, H.
language : en
Publisher: IWMI
Release Date : 2007

Agricultural Water Management In A Water Stressed Catchment Lessons From The Riparwin Project written by McCartney, Matthew P., Lankford, B. A., Mahoo, H. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Water-supply, Agricultural categories.


In the face of growing water stress and increasing concerns over the sustainability of water use, Tanzania has, in common with many other countries in Africa, focused largely on the development of more integrated catchment-wide approaches to water management. In the Great Ruaha River Basin, considerable effort has gone into increasing water productivity and the promotion of mechanisms for more efficient allocation of water resources. Over a period of five years, the RIPARWIN project investigated water management in the basin and evaluated the effectiveness of some of the mechanisms that have been introduced. The study findings are relevant to basins in developing countries where there is competition for water and irrigation is one of the main uses.



Estuaries A Lifeline Of Ecosystem Services In The Western Indian Ocean


Estuaries A Lifeline Of Ecosystem Services In The Western Indian Ocean
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Author : Salif Diop
language : en
Publisher: Springer
Release Date : 2016-03-22

Estuaries A Lifeline Of Ecosystem Services In The Western Indian Ocean written by Salif Diop and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-22 with Science categories.


This book provides recent environmental, ecological and hydrodynamic information for the major estuaries and the coastal marine systems of the Western Indian Ocean Region. It covers various functions and values of the region’s estuarine ecosystems and their respective habitats, including the land/ocean interactions that define and impact ecosystem services. The Western Indian Ocean region covered by this volume consists of the continental coastal states of Kenya, Mozambique, South Africa and Tanzania and the island states of Madagascar, Mauritius, Seychelles and Comoros.



From Integrated To Expedient


From Integrated To Expedient
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Author : Lankford, B. A
language : en
Publisher: IWMI
Release Date : 2007

From Integrated To Expedient written by Lankford, B. A and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Great Ruaha River Watershed (Tanzania) categories.


Study draws on experiences in the catchment of the Great Ruaha River in Tanzania.



Wetlands Agriculture And Poverty Reduction


Wetlands Agriculture And Poverty Reduction
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Author : McCartney, Matthew
language : en
Publisher: IWMI
Release Date : 2010

Wetlands Agriculture And Poverty Reduction written by McCartney, Matthew and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.


In many places, growing population, in conjunction with efforts to increase food security, is escalating pressure to expand agriculture within wetlands. The environmental impact of wetland agriculture can have profound social and economic repercussions for people dependent on ecosystem services other than those provided directly by agriculture. If wetlands are not used sustainably, the functions which support agriculture, as well as other food security and ecosystem services, are undermined. This report synthesizes findings from multidisciplinary studies conducted into sustainable wetland agriculture by IWMI and partners in Africa and Asia. It highlights the value of wetland agriculture for poverty reduction as well as the need for more systematic planning that takes into account trade-offs in the multiple services that wetlands provide.



Nile River Basin


Nile River Basin
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Author : Assefa M. Melesse
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-28

Nile River Basin written by Assefa M. Melesse and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-28 with Science categories.


This book presents results of scientific studies ranging from hydrological modelling to water management and policy issues in the Nile River basin. It examines the physical, hydrometeorological and hydrogeological description of the basin along with analysis in understanding the hydrological processes of the basin under the changing land-use stemming from population pressure and increased natural resources tapping. The book discusses the increased impact of climate change on the river flows, and such issues as water availability and demand, management and policy to offset the imbalance between demand and available resources. This book will be of interest to researchers, practitioners, water resources mangers, policy makers as well as graduate and undergraduate students. It is a useful reference text for ecohydrology, arid zone hydrology, hydrology of transboundary rivers and similar courses.



Water For Food In A Changing World


Water For Food In A Changing World
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Author : Alberto Garrido
language : en
Publisher: Routledge
Release Date : 2011-04-12

Water For Food In A Changing World written by Alberto Garrido and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-12 with Business & Economics categories.


There is not enough water globally for all the things humans need and want water to do for us. Water supply bubbles are bursting in China, the Middle East and India with potentially serious implications for the global economy and for political stability. Even the United States is depleting groundwater on average 25% faster than it is being replenished. Our thirst for water grows with our population, but the amount of fresh water available on Earth is fixed. If we assume "business as usual" by 2050 about 40% of the projected global population of 9.4 billion is expected to be facing water stress or scarcity. With increasing climate variability being predicted by global climate models, we are likely also to have more people without adequate water more of the time, even in water-rich regions. Irrigation productivity rose dramatically over the past 40 years as a result of the Green Revolution. However, even if we disregard the environmental impacts caused by that revolution, we are no nearer to achieving global food security than we were 40 years ago, as every time we come close to filling the food production gap population growth and ecosystem decline associated with water diversions to human purposes set us back. Our natural and agricultural ecosystems are trying to tell us something. This book pursues these overarching themes connecting to water and food production at global and regional scales. The collection offers a comprehensive discussion of all relevant issues, and offers a wide-ranging discussion with the aim of contributing to the global debate about water and food crises.



Applying The Gini Coefficient To Measure Inequality Of Water Use In The Olifants River Water Management Area South Africa


Applying The Gini Coefficient To Measure Inequality Of Water Use In The Olifants River Water Management Area South Africa
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Author : Cullis, J.
language : en
Publisher: IWMI
Release Date : 2007

Applying The Gini Coefficient To Measure Inequality Of Water Use In The Olifants River Water Management Area South Africa written by Cullis, J. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Olifants River Watershed (South Africa) categories.


The present study explores the application of the Gini Coefficient, which has hitherto only been used for income and land distribution, to quantify the distribution of water resources. The tool is tested in the water-stressed Olifants Water Management Area, in South Africa. Using readily available information on water use registrations, water use estimates, and census data, two versions of the Gini Coefficient are calculated. The first measures the distribution of the allocation of direct water use in rural areas and was estimated at 0.96 in the study area. In other words, 99.5 percent of the rural households are entitled to useonly 5 percent of the available water. The second version calculates the distribution of the indirect benefits of water use in the form of direct employment. This is shown to have a Gini Coefficient of 0.64. Using the Gini Coefficient an assessment was also made of the impacts of different policy scenarios. It was found that by more than doubling the amount of water used by rural households from the current 225 cubic meters per household per annum (m3/hh/annum) to 610 m3/hh/annum, which would enable each household to meet its basic human needs of 50 litres/person/day and irrigate 1,000 square meters (m2), would reduce the Gini Coefficient significantly. Yet, this would only require the large-scale registered users to reduce their current irrigation water use entitlement by 6 percent or the largest ten users to reduce their use by 20 percent each.



The Impact Of Government Policies On Land Use In Northern Vietnam An Institutional Approach For Understanding Farmer Decisions


The Impact Of Government Policies On Land Use In Northern Vietnam An Institutional Approach For Understanding Farmer Decisions
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Author : Clement, Floriane, Amezaga, Jaime M., Orange, Didier, Toan, Tran Duc
language : en
Publisher: IWMI
Release Date : 2007

The Impact Of Government Policies On Land Use In Northern Vietnam An Institutional Approach For Understanding Farmer Decisions written by Clement, Floriane, Amezaga, Jaime M., Orange, Didier, Toan, Tran Duc and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Land use categories.


This report identifies the driving forces for reforestation in three villages of Northern Vietnam. Using an institutional analysis focused on the rules governing upland access and use, the authors assess the relative impact of state policies (reforestation programs and forestland allocation) on land use change. Findings show that the latter are indirectly responsible for reforestation, but not because of the incentives they provided. Instead, they disrupted the local rules governing annual crop cultivation and grazing activities leading to the end of annual cropping. Tree plantation was chosen by farmers as a last resort option. Lessons learned highlight the importance of local level studies and collective rules for land management.



River Basin Trajectories


River Basin Trajectories
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Author : François Molle
language : en
Publisher: IWMI
Release Date : 2009

River Basin Trajectories written by François Molle and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Business & Economics categories.


This book contains 11 papers which cover a range of vital topics in the areas of water, agriculture, food security and ecosystems - the entire spectrum of developing and managing water in agriculture, from fully irrigated to fully rainfed lands. They are about people and society, why they decide to adopt certain practices and not others and, in particular, how water management can help poor people. They are about ecosystems - how agriculture affects ecosystems, the goods and services ecosystems provide for food security and how water can be managed to meet both food and environmental security objectives. This is the eighth book in the series.