Download or read book Agro well and Pump Diffusion in the Dry Zone of Sri Lanka written by P. Weligamage and published by IWMI. This book was released on 2003 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of shallow wells, equipped with small pumps, to lift groundwater has spread rapidly in many agricultural regions of tropical monsoonal Asia. In Sri Lanka, the rapid and pervasive invasion of agro-wells and pumps drew the attention of policymakers and researchers, but many questions were left unanswered due to lack of research in the area. This study aims to fill this gap in knowledge, based on observations and data obtained in field surveys conducted in major and minor irrigation schemes in the dry zone of Sri Lanka. This report gives the key findings of this study into the pattern, extent and causes of the spread and use of agro-wells and pumps in traditional villages and irrigated settlement schemes. It investigates farmer investments in agro-wells and pumps, the private internal rate of return to these investments, the economic viability of investments and incentives for farmers to make investments.
Download or read book More Crop Per Drop written by Meredith Giordano and published by IWA Publishing. This book was released on 2007-01-01 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is an analytical summary and a critical synthesis of research at the International Water Management Institute over the past decade under its evolving research paradigm known popularly as 'more crop per drop'. The research synthesized here covers the full range of issues falling in the larger canvas of water-food-health-environment interface. Besides its immediate role in sharing knowledge with the research, donor, and policy communities, this volume also has a larger purpose of promoting a new way of looking at the water issues within the broader development context of food, livelihood, health and environmental challenges. More crop per drop: Revisiting a research paradigm contrasts the acquired wisdom and fresh thinking on some of the most challenging water issues of our times. It describes new tools, approaches, and methodologies and also illustrates them with practical application both from a global perspective and within the local and regional contexts of Asia and Africa. Since this volume brings together all major research works of IWMI, including an almost exhaustive list of citations, in one single set of pages, it is very valuable not only as a reference material for researchers and students but also as a policy tool for decision-makers and development agencies.
Download or read book Irrigation Sector in Sri Lanka written by M. Kikuchi and published by IWMI. This book was released on 2002 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing the area under irrigation and the widespread adoption of seed-fertilizer technology were the major factors that contributed to enhanced rice production in Sri Lanka, enabling the country to achieve self-sufficiency in rice. In recent years, there has been a shift in emphasis from expanding the irrigated land base to enhancing the productivity of irrigated land through diversification of agriculture and improvement of rice production, with better water management in irrigation schemes. This report attempts to assess how the irrigation sector in Sri Lanka is adapting itself to these new challenges. It analyzes the future direction of irrigation in Sri Lanka in light of recent trends in public and private investment in this sphere, and the revolution in groundwater development brought about by the poor performance and gradual deterioration of existing irrigation schemes.
Download or read book Prospects for adopting system of rice intensification in Sri Lanka A socioeconomic assessment written by Namara, Regassa E., Weligamage, Parakrama, Barker, Randolph. and published by IWMI. This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, there is an increasing worldwide interest in assessing the potential for maintaining or increasing rice yields by reducing or eliminating the use of chemicals and by decreasing irrigation requirements. The System of Rice Intensification (SRI) first developed in Madagascar and now being tested in many countries, is an example of such an approach. The system is based largely on organic farming principles and additional requirements for spacing and the transplanting of seedlings.
Download or read book Reforming Institutions in Water Resource Management written by Lin Crase and published by Earthscan. This book was released on 2009 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resolving these problems is crucial for the future.
Download or read book Proceedings of the National Conference on Water Food Security and Climate Change in Sri Lanka BMICH Colombo June 9 11 2009 Volume 1 Irrigation for food security written by P. Weligamage and published by IWMI. This book was released on 2010 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed papers presented at the conference organized by International Water Management Institute, Irrigation Dept., Dept. of Agriculture, and Hector Kobbekaduwa Agrarian Research and Training Institute.
Download or read book Malaria and Land Use written by Eveline Klinkenberg and published by IWMI. This book was released on 2003 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transmission of malaria in Sri Lanka is unstable; its incidence greatly fluctuates from year to year and exhibits important variations within a year. Identification of the underlying risk factors of malaria is important to target the limited resources for the most-effective control of the disease. This report presents the first results of a project on malaria risk mapping to investigate whether this tool could be utilized to forecast malaria epidemics. It documents the key malaria risk factors for the Uda Walawe region of Sri Lanka, where monthly malaria incidence data were available over a 10-year period. In the study, data on aggregate malaria-incidence rates, land-use and water-use patterns, socioeconomic features and malaria-control interventions were collected and analyzed in a geographical information system. Malaria cases were mapped at the smallest administrative level and relative risks for different variables were calculated employing multivariate analyses. The findings of the study call for malaria-control strategies that are readily adapted to different ecological and epidemiological settings.
Download or read book Tubewell Transfer in Gujarat written by Aditi Mukherji and published by IWMI. This book was released on 2003 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: In India public (government) tubewells were built with the intention of providing irrigation to all categories of farmers in a fair, equitable and affordable manner. However, most public tubewell programs across India have failed on all these counts. Efforts to transfer their management to water users too have met with little success. Nonetheless, the Gujarat Water Resources Development Corporation (GWRDC)-a state-owned public company-has achieved rare success in tubewell transfer by handing over management of around 60 percent of public tubewells in the Gujarat state to user groups. This study tries to identify the factors that helped in accelerating the transfer process and evaluate the performance of transferred tubewells against those owned by individuals and GWRDC. It also suggests some policy changes that can make the scheme function better and explores the replicability of the success achieved in Gujarat.
Download or read book Evolution of Irrigation in South and Southeast Asia written by Randolph Barker and published by IWMI. This book was released on 2004 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developments in the Asian Rice Economy written by M. Sombilla and published by Int. Rice Res. Inst.. This book was released on 2002 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Policies Drain the North China Plain written by Eloise Kendy and published by IWMI. This book was released on 2003 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report examines the relationships between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000. To systematically address these relationships, we use a comprehensive water-balance approach. Our results indicate that a single, longstanding policy-that of using groundwater to meet the crop-water requirements not supplied by precipitation-is responsible for the steady rate of groundwater decline.
Download or read book Development Trajectories of River Basins written by François Molle and published by IWMI. This book was released on 2003 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of societies is shaped to a large extent by their resources base, notably water resources. Access to and control of water depend primarily on the available technology and engineering feats, such as river-diversion structures, canals, dams and dikes. As growing human pressure on water resources brings actual water use closer to potential ceilings, supply-augmentation options get scarcer, and societies, therefore, usually respond by adopting conservation measures and by reallocating water towards more beneficial uses.
Download or read book A Method to Identify and Evaluate the Legal and Institutional Framework for the Management of Water and Land in Asia written by Ian Hannam and published by IWMI. This book was released on 2003 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: By determining the capacity of relevant international, national and regional legislation to support sustainable use of water and land, planners, legislative drafters and policymakers have a basis for recommending legal and institutional reform. This report, based on an investigation into existing water- and land- management laws and issues in three countries in the region, offers a methodology that can be used for such evaluations.
Download or read book A diagnostic model framework for water use in rice based irrigation systems written by Wilfried Hundertmark and published by IWMI. This book was released on 2003 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper presents a framework for water use in rice-based irrigation systems, which is based on linear programming (LP). This framework intends to facilitate improved understanding of a system's internal and external conditions and the constraints to productive use of the available land and water resources, and thereby create a reference for the assessment of the physical, economic and environmental performance of a given system. The framework is conceived as a tool that is used interactively in technical group sessions with farmers, system operators and extension workers, where structured discussions lead to improved data confidence, and understanding of complex irrigation systems.
Download or read book Environmental Science and Engineering written by T. Meenambal and published by MJP Publisher. This book was released on 2019-06-05 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: PART I NATURAL RESOURCESIntroductionForest Resources Water ResourcesMineral ResourcesFood ResourcesEnergy ResourcesLand ResourcesRole of Individual in Conservation of ResourcesPART II ECOSYSTEM AND BIODIVERSITYEcosystemBiogeographical Classification of IndiaBiogeochemical CyclesBiodiversityPART III ENVIRONMENTAL POLLUTIONAir PollutionWater PollutionSoil PollutionMarine PollutionPART IV SOCIAL ISSUES AND THE ENVIRONMENTEnvironmental ManagementClimate ChangeNuclear Accidents and HolocaustPopulation GrowthHuman Health and Human RightsEnvironmental EthicsEnvironmental LegislationReview QuestionsGlossaryBibiliographyIndex
Download or read book Simulating the hydrology of small coastal ecosystems in conditions of limited data written by Smakhtin, Vladimir U., Piyankarage, Sujeewa C., Stanzel, P., Boelee, Eline and published by IWMI. This book was released on 2004 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impacts of water resources and irrigation development need to be quantified in order to understand the environmental costs of such development activities. Complex data-intensive simulation methods are normally used for this purpose in the developed world. However, lack of reliable data prohibits the use of such models in developing countries where it is more practical to apply models with less data requirements. The report illustrates three applications of simple and pragmatic simulation models to small coastal water bodies in Sri Lanka and South Africa.
Download or read book Small dams and social capital in Yemen How assistance strategies affect local investment and institutions written by Vermillion, Douglas Lynn, Al-Shaybani, S. and published by IWMI. This book was released on 2004 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines the development of eight small dam projects in the mountainous province of Al-Mahweet in north-central Yemen. The report also investigates how external assistance affects incentives for local people to invest in dam development and water delivery systems and also to create rules, property rights and institutional arrangements to manage the dam and water.
