Download or read book World Water Assessment Program Case Study Ruhuna Basins Sri Lanka written by K. A. U. S. Imbulana and published by . This book was released on 2002 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "Ruhuna Basins" defined for this case study encompass three of the main rivers that flow through ancient Ruhuna, including the longest and most important river in the region, Walawe. The Ruhuna basins are important in the broader Sri Lankan context, the basin being the location of a major hydropower plant, irrigation schemes that make a significant contribution to national food production, and important nature reserves. However, even before the proposed development begins to be implemented, the basins are experiencing major water resources problems, clearly demonstrated by the recent drought that led to reduction of water supplies to agriculture, insufficient domestic water supply, and which contributed to nationwide power cuts up to 8 hours a day. These challenging issues motivated the Government of Sri Lanka to select the cluster of three important rivers, Walawe, Menik and Kirindi, and the smaller basins confined by them as the area for the case study for the World Water Assessment Program.

Download or read book World Water Assessment Programme Sri Lanka Case Study written by K. A. U. S. Imbulana and published by IWMI. This book was released on 2002-04-07 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Case Study Workshop was organized with the objective of obtaining the necessary input the experts on different subject areas of water resources, subject those views and discussion among the stakeholder agencies, and synthesize the information to a report on the case study. The outcome of the Workshop would eventually transform into the contribution of Sri Lanka to the forst WWDR

Download or read book Balancing irrigation and hydropower Case study from Southern Sri Lanka written by Molle, François, Jayakody, Priyantha, Ariyaratne, Ranjith, Somatilake, H. S. and published by IWMI. This book was released on 2005 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report analyzes a case from southern Sri Lanka, where the Samanalawewa dam and the Kaltota Irrigation Scheme (KIS) compete for the water of the Walawe river. At the catchment level, it is shown that dam releases are well attuned to the needs of KIS and to the occurrences of natural runoff, and that little of the dam water is "lost" to the river.

Download or read book Water in a Changing World written by World Water Assessment Programme (United Nations) and published by UNESCO. This book was released on 2009-01-01 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The United Nations World Water Development Report", published every three years, is a comprehensive review providing an authoritative picture of the state of the world's freshwater resources. It offers best practices as well as in-depth theoretical analyses to help stimulate ideas and actions for better stewardship in the water sector. It is the only report of its kind, resulting from the collaboration and contributions of the 26 UN agencies, commissions, program, funds, secretariats and conventions that have a significant role in addressing global water concerns.

Download or read book Ruhuna benchmark basin activities Proceedings of the inaugural meeting held at Peacock Beach Hotel Hambantota Sri Lanka 15 June 2001 written by and published by IWMI. This book was released on 2001 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a Benchmark Basin initiative which was proposed in IWMI's Strategic Plan 2001-2005 as an approach to understand and beneficially influence water resources development in selected basins in a variety of agro-ecological zones. The initial task represented by this workshop is to conduct a dialogue among partners and stakeholders in the Ruhuna Basin, Sri Lanka. A major objective is to identify these issues and research and also development activities considered to be of highest priority to partners and stakeholders.

Download or read book Water Resource Management in South Asia written by Anjal Prakash and published by Taylor & Francis. This book was released on 2022-05-29 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This cluster of books presents innovative and nuanced knowledge on water resources, based on detailed case studies from South Asia—India, Bangladesh, Bhutan, Nepal, Pakistan, and Sri Lanka. In providing comprehensive analyses of the existing economic, demographic and ideological contexts in which water policies are framed and implemented, the volumes argue for alternative, informed and integrated approaches towards efficient management and equitable distribution of water. These also explore the globalization of water governance in the region, particularly in relation to new paradigms of neoliberalism, civil society participation, integrated water resource management (IWRM), public–private partnerships, privatization, and gender mainstreaming. These volumes will be indispensable for scholars and students of development studies, environmental studies, natural resource management, governance and public administration, particularly those working on water resources in South Asia. They will also be useful for policymakers and governmental and non-governmental organizations.

Download or read book Economics and politics of water resources development Uda Walawe Irrigation Project Sri Lanka written by Molle, Francois, Renwick, M. and published by IWMI. This book was released on 2005 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Uda Walawe Irrigation and Resettlement Project (UWIRP) located in the Southern dry zone of Sri Lanka was initiated in the early 1950s. The original plan for the UWIRP was a highly ambitious social, economic and physical engineering project aimed at creating a modern, profitable agriculture sector. This report examines the history of water resources development and investment decisions for the UWIRP over a period of 50 years and uncovers underlying processes that shaped the evolution of the project and highlights the limitation of viewing development as a mere set of technical and social engineering endeavors.

Download or read book Water Governance and Civil Society Responses in South Asia written by N. C. Narayanan and published by Taylor & Francis. This book was released on 2018-10-24 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses paradigm shifts in water policy and governance, and examines the role of civil society organizations in influencing public policy, while focusing on social equity and democratic participation. It illustrates a range of interesting developments in policy formulation, donor–state nexus, and interventions by civil society and voluntary organizations. The collection of articles provides a comprehensive and current narrative of the state–society relations in South Asia under neoliberal governance reforms, their implications and key responses with regard to water policies. Using case studies, it closely investigates the impact, effectiveness, drawbacks and challenges faced by voluntary organizations and social movements working at various levels in the water sector. The work will interest researchers and students of development studies, environmental studies, natural resource management, water governance, and public administration, as also water sector professionals, policymakers, civil society activists and governmental and non-governmental organizations.

Download or read book Water written by Unesco and published by UN-HABITAT. This book was released on 2006 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This illustrated report sets out a global review of the state of the world's freshwater resources, based on the collective work of 24 United Nations agencies, following on from the conclusions of the first UN World Water Development Report 'Water for People, Water for Life' published in 2003 (ISBN 9231038818). This second edition discusses progress towards the water-related targets of the UN Millennium Development Goals and examines a range of key issues including population growth and increasing urbanisation, changing ecosystems, food production, health, industry and energy, as well as risk management, valuing and paying for water and increasing knowledge and capacity. It contains 16 case studies which consider key challenges in water resource management and makes a number of recommendations to guide future action and encourage sustainable use, productivity and management of our increasingly scarce freshwater resources.

Download or read book Indigenous and Local Water Knowledge Values and Practices written by Mrittika Basu and published by Springer Nature. This book was released on 2023-03-01 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a knowledge base of the existing indigenous and local water knowledge, values, and practices, and how this water knowledge can be mainstreamed into the decision-making process. The book not only demonstrates the perks of using indigenous knowledge but also illustrates the barriers and gaps that should be considered while planning for mainstreaming traditional knowledge and values at a local scale. The chapters incorporate case studies from various parts of the world demonstrating how indigenous, and religious and cultural values of water have translated into water use and conservation behavior among indigenous people ensuring resource sustainability over a long period of time. There has been global attention towards combining indigenous and local knowledge with new information and innovation to attain future water security. In this regard, this book is timely, relevant, and significant as it is the first attempt, as per the best of our knowledge, to publish a book that solely addresses indigenous and local knowledge, values, and practices regarding water management, quality monitoring, use, and conservation. With increasing emphasis on the inclusion of indigenous and local knowledge into natural resource governance and conservation by international agencies like the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), the proposed book will significantly contribute to the existing knowledge base and demonstrate the importance of mainstreaming indigenous water knowledge and practices into water governance and decision making. The UN SDGs, recognizing the significance of indigenous knowledge systems, emphasized its inclusion in most aspects and principles of SDGs. Apart from direct links with SDGs like zero hunger (SDG 2), no poverty (SDG 1), and climate action (SDG 13), indigenous and local knowledge system is considered to be directly connected to clean water and sanitation (SDG 6). The book will be useful to researchers and students in the field of indigenous knowledge and education, water governance, community-level planning, and water sustainability. The book can be referred to for postgraduate courses and beyond, as well as policymakers, conservationists, non-governmental organizations, development practitioners, and local government officials.

Download or read book Environment Planning written by and published by . This book was released on 2009 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water for People Water for Life written by World Water Assessment Programme (United Nations) and published by Berghahn Books. This book was released on 2003 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's freshwater resources are coming under growing pressure through such environmental hazards as human waste, urbanization, industrialization, and pesticides. The problems are exacerbated through drought in many parts of the world. The improvement of the water quality itself and access to it have been major concerns for politicians and development agencies for over a decade. First officially formulated at the Rio Earth Summit of 1992, they have been restated or expanded since then. The UN Millennium Declaration of 2000 transformed general guidelines into specific targets. The international community pledged "to halve by 2015 the proportion of people who are unable to reach, or to afford, safe drinking water" and "to stop the unsustainable exploitation of water resources, by developing water management strategies at the regional, national and local levels, which promote both equitable access and adequate supplies." Thus, ten years after Rio it is time to take stock. Based on the collective inputs of 23 United Nations agencies and convention secretariats, this Report offers a global overview of the state of the world's freshwater resources. It is part of an on-going assessment process to develop policies and help with their implementation as well as to measure any progress towards achieving sustainable use of water resources. Generously illustrated with more than 25 full-color global maps and numerous figures, the report reviews progress and trends and presents seven pilot case studies of river basins representing various social, economic and environmental settings: Lake Titicaca (Bolivia, Peru); Senegal river basin (Senegal, Mali, Mauritania, Guinea); Seine Normandy (France); Lake Peipsi/Chudskoe (Estonia, Russia); Ruhuna basin (Sri Lanka); Greater Tokyo region (Japan); and Chao Phraya (Thailand). It assesses progress in 11 challenge areas, including health, food, environment, shared water resources, cities, industry, energy, risk management, knowledge, valuing water and governance. Proposing methodologies and indicators for measuring sustainability, it lays the foundations for regular, system-wide monitoring and reporting by the UN, together with the development of standardized methodologies and data. With its comprehensive maps, glossary, references and coverage of a broad range of themes and examples of real-world river basins, the UN World Water Development Report will no doubt prove to be a most valuable reference work. Visit the United Nation's Water Portal for more information on the report and on the International Year of Freshwater 2003.

Download or read book Tropical Agricultural Research written by University of Peradeniya. Postgraduate Institute of Agriculture. Congress and published by . This book was released on 2005 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An assessment of hydrology and environmental flows in the Walawe River Basin Sri Lanka written by Smakhtin, Vladimir and published by IWMI. This book was released on 2005 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantification of hydrological processes and water requirements of aquatic ecosystems is required for many projects related to environmental security and efficient water use in agriculture. This also applies to the Asian monsoon region. This paper focuses on the Walawe River basin, located in a semi-arid zone of southern Sri Lanka. The two major reservoirs in the upstream and middle reaches of the river with a total capacity of 486 million cubic meters (MCM) have significantly affected the hydrology of the river, with associated adverse environmental and social consequences.

Download or read book Environmental and social values of river water Examples from the Menik Ganga Sri Lanka written by Priyanka Dissanayake and published by IWMI. This book was released on 2007-11-27 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many decisions on water allocation in river basins are made on economic grounds. Environmental and social benefits of water should also be considered in river basin management, and attempts should be made to value them similarly. This is not a straightforward task and very few studies have directly addressed this issue to date. In this paper, the Menik Ganga (River) in southern Sri Lanka is used as a case study to attempt and evaluate the costs and benefits of environmental water allocations, referred to as ‘environmental flows™ (EF). In this study, a broad definition of EF is used: the components of EF evaluated include the requirements of the religious festival, the requirements of the Yala National Park, the requirements of the Pilinnawa Coastal Wetland and the requirements of the Yala Fishery Management Area, off the coast. Almost all estimates are based on use values of EF such as marketed goods and recreation. For some components multiple estimates have been attempted. The religious EF requirement is estimated using the cost of alternative water supplies. The benefits of the EF requirement for the Yala National Park are estimated using the forgone value of tourism in the dry season and the benefits of avoiding the Human-Elephant Conflict. The Additional expenditure for the park in the dry season is also presented as another proxy estimate of the benefits of EF. The Benefit Transfer method was used for the Pilinnawa Wetland and grassland due to data constraints. The market prices of lobster and income of chank divers are used as proxies for the economic benefits of EF to the Yala Fishery Management Area. Finally, the cumulative value of the individual components is presented and discussed. The paper intends to stimulate discussion and further research on the complex subject of valuing the social and environmental benefits of water whether it is in the Menik Ganga, elsewhere in Sri Lanka or elsewhere in the world.

Download or read book Lagoons of Sri Lanka written by Silva, E. I. L. and published by IWMI. This book was released on 2013-03-01 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sri Lanka, an island in the Indian Ocean, has lagoons along 1,338 km of its coastline. They experience low-energy oceanic waves and semidiurnal microtidal currents. The Sri Lankan coastal lagoons are not numerous but they are diverse in size, shape, configuration, ecohydrology, and ecosystem values and services. The heterogeneous nature, in general, and specific complexities, to a certain extent, exhibited by coastal lagoons in Sri Lanka are fundamentally determined by coastal and adjoining hinterland geomorphology, tidal fluxes and fluvial inputs, monsoonal-driven climate and weather, morphoedaphic attributes, and cohesive interactions with human interventions.Most coastal lagoons in Sri Lanka are an outcome of mid-Holocene marine transgression and subsequent barrier formation and spit development enclosing the water body between the land and the sea. This process has varied from one coastal stretch to another due to wave-derived littoral drift, sediment transport by tidal fluxes, fluvial inputs and wave action or, in other words, sea-level history, shore-face dynamics and tidal range as the three major factors that control the origin and maintenance of the sandy barrier, the most important features for the formation and evolution of coastal lagoons with their landward water mass. In certain stretches of Sri Lanka’s coastline, formation of the barrier spit was very active due to shore-face dynamics that resulted in chains of shore parallel, elongated lagoons. They are among the most productive in terms of ecosystem yield and show some similarities to large tropical lagoons with respect to sea entrance, zonation, biodiversity and ecosystem services. However, some of them become seasonally hypersaline due to lack of freshwater input and high evaporation. Functions and processes of some of these water bodies are fairly known. There are a fair number of small back-barrier lagoons of different shapes and sizes whose origin goes back to sea-level history. They are located on low-energy coasts with prominent beach ridges and restricted hinterland geomorphology. Mixing processes of these landward indentations are hindered by elevated sand dunes, and their salinity increases due to poor freshwater input and high evaporation leading to seasonally hypersaline conditions. These sedimented lagoons, primarily confined to the southeastern coast of the island, are biologically the least productive, with limited ecosystem values and services. Another group of moderately elongated semicircular, slightly large lagoons in the same coast, formed exclusively by submergence due to mid-Holocene sea-level rises, do not receive sufficient freshwater input leading to seasonally hypersaline conditions. They are also biologically unproductive but some are ecologically important since they provide habitats conducive to migratory birds. In contrast, some lagoons on the southern coast receive sufficient freshwater via streams draining the wet zone, maintain more estuarine salinities, exhibit rich biodiversity and serve as functional resource units. Lagoons formed by mid-Holocene submergence and recession of water level with simultaneous chain barrier formation on the high energy southwest coast, which includes cliffs, small bays and headlands, show peculiar configurations and link channel characteristics. Some of these irregular water bodies have clusters of small isles and luxuriant mangrove swamps with high biodiversity but not very rich in catadromous finfish and shellfish species due to the restricted nature of the entrance channel and nondistinct salinity gradients. The barrier-built, seasonally hypersaline lagoon complex in the Jaffna Peninsula, the largest lagoon system in the country with multiple perennial entrances show extremely narrow salinity ranges towards the upper limit of salinity. The main lagoon is elongated and the shore parallel to eastward and southward extensions is connected by narrow channels. The other lagoon in the Jaffna Peninsula is elongated, shore parallel and ribbon-shaped and receives tidal water throughout the year but freshwater is received only from precipitation and surface runoff. Even though the lagoons in the peninsula are extremely rich in ecosystem heterogeneity their hydrology and hydrodynamics have been severely disturbed by infrastructural development for transportation and by attempts to create a freshwater river for Jaffna. There are a few virgin lagoons of moderate size also on the northern coast, south of the Jaffna Peninsula on both the east and west sides. They look very typical tropical lagoons rich in biodiversity and biological production but their structure, functions and values are virtually unknown in scientific or socioeconomic terms. The lagoons located on the east coast are not numerous but relatively large in extent. They are also an outcome not only of mid-Holocene sea-level rises but of submerged multi-delta valleys or abandoned paleo estuaries. When inundated, the multi-delta valley configuration became elongated and is shore parallel with a smooth seaward shoreline; both shorelines become irregular when coastal waves are weak, and internal waves are created by the action of local winds. Configuration of a lagoon formed by inundation of an abandoned river valley is irregular with a long entrance channel extended landward. These lagoons are highly productive with a variety of associated ecosystems, large open water areas and wide perennial sea entrances. When the lagoon is too much elongated, zonation is prominent due to fewer entrance effects. Lagoons form a particular type of natural capital which generates use values (fish, shrimp, fuelwood, salt, fodder, ecotourism, anchorage, recreation, etc.) and nonuse values (habitat preservation, biodiversity, ecosystem linkages, etc.) contributing positively towards improving the human well-being. Of many values of lagoons in Sri Lanka, only the extractive values are generally utilized at present, by way of fish and shrimp catches, salt production and use of mangrove for various purposes. Besides, coastal lagoons generate a range of nonextractive use values and nonuse values, which could add towards the total economic value. Misuse has taken place at several instances when “use” adversely affects the status of the resources or the health of the ecosystem due to vulnerability and poverty, population pressure, urbanization, development activities and multi-stakeholder issues. The status of lagoon resources shows that the resources in the majority of Sri Lankan lagoons still remain satisfactory, somewhat good or very good. Nevertheless, concerns for management of lagoons in Sri Lanka exist only where “use values” (extractive values, such as fish and shrimp) exist. There is no evidence of resources management in lagoons for inspirational, scholarly values or tacit knowledge of the same. Management for use values exhibits several stages from zero management to comanagement via community management and state intervention. Most of Sri Lanka’s lagoons have the potential for generating high extractive and nonextractive use values which could improve the human well-being, while maintaining resources sustainability. Unfortunately, these potentials have not been understood or “seen” yet by the relevant authorities, although a few instances of exploring this potential were noticed.

Download or read book Water Food and Poverty in River Basins written by Myles Fisher and published by Routledge. This book was released on 2013-09-13 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional wisdom says that the world is heading for a major water crisis. By 2050, global population will increase from 7 billion to a staggering 9.5 billion and the demands this will place on food and water systems will inevitably push river basins over the edge. The findings from this book present a different picture. While it is convenient to visualize an inevitable global water and food crisis in which increasing demands result in increasing poverty, food insecurity and conflict, the reality is far more nuanced and revolves around the politics of equitable and sustainable development of resources. The first part of this book provides detailed insight into conditions of water flows within nine river basins. In the second part, authors summarize and re-analyze the outcome of the nine basins, providing a coherent global picture of water, water productivity and development. They assess the impacts of variations of these attributes on development and approaches for poverty alleviation, and explore the institutional factors that support or obstruct change. How people will manage river systems while protecting vital ecosystem functions will make the difference between catastrophe and survival. As Prof Asit Biswas points out, "... the world is facing a water crisis not because of physical scarcity of water but because of poor management practices in nearly all countries of the world." The book is based on the four years (2006-2010) of extensive research into the state of ten of the world’s major river basins carried out under the CGIAR Challenge Program for Water and Food’s Basin Focal Project. This book was published as a special issue of Water International.