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| SWIM Papers |
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| SWIM Paper 8 |
Multiple Uses of Water in
Irrigated Areas: A Case Study
from Sri Lanka
Authors : R. Mehra, A.V. Eijk, F. Marikkar,
Y. Matsuno, David Molden, R. Sakthivadivel, W.V. der Hoek, Parakrama Weligama,
Margaretha Bakker, R. Meinzen-Dick, Flemming Konradsen
Date Published : 1999 -- Download PDF [362 KB] Abstract
The 1990s have witnessed a dramatic shift in the priorities for water resource allocations and development. Irrigation, which was once seen as the essential factor for securing sufficient food production, is now seen as a "low-value" use of water compared to its municipal, industrial, and even the environmental uses. Irrigation no longer receives priority either in the allocation of funds for project developments or in the allocation of water itself. |
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| SWIM Paper 7 |
Water Harvesting and
Supplemental Irrigation for Improved
Water Use Efficiency in Dry Areas
Authors : Theib Oweis,
Ahmed Hachum,
Jacob Kijne
Date Published : 1999 -- Download PDF [576 KB] Abstract
Dry areas occupy over 95 percent of the total
lands of West Asia and North Africa (WANA) region. The area is dominated by a Mediterranean-type climate characterized by cool and rainy winters and temperate dry summers. Mediterranean sub-climates are usually differentiated by the length of the summer drought period and the temperatures during winter and summer. |
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| SWIM Paper 6 |
Modeling Water Resources
Management at the Basin Level:
Review and Future Directions
Authors : Daene C. McKinney, Ximing Cai,
Mark W. Rosegrant, Claudia Ringler,
Christopher A. Scott
Date Published : 1999 -- Download PDF [459 KB] Abstract
The world is facing severe and growing challenges in maintaining water quality and meeting the rapidly growing demand for water resources. New sources of water are increasingly expensive to exploit, limiting the potential for expansion of new water supplies. Water used for irrigation, the largest use of water in most developing countries, will likely have to be diverted to meet the needs of urban areas and industry whilst remaining a prime engine of agricultural growth. |
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| SWIM Paper 5 |
Producing More Rice with Less
Water fromIrrigated Systems
Authors : L.C. Guerra,
S.I. Bhuiyan,
T.P. Tuong,
R. Barker
Date Published : 1998 -- Download PDF [202 KB] Abstract
Rice is the staple food for nearly half of the world's population, most of whom live in developing countries. The crop occupies one-third of the world's total area planted to cereals and provides 35-60 percent of the calories consumed by 2.7 billion people. More than 90 percent of the world's rice is produced and consumed in Asia (Barker and Herdt 1985, IRRI 1989). |
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| SWIM Paper 4 |
Improving Water Utilization
from a Catchment Perspective
Authors : Charles Batchelor,
Jeremy Cain,
Frank Farquharson,
John Roberts
Date Published : 1998 -- Download PDF [2.17 MB] Abstract
Traditionally, the main aims of hydrological research have been to provide an understanding of the water balance operating in catchments,1 the processes and mechanisms that control water movement, and the impacts of land use change on water quantity and quality. |
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| SWIM Paper 3 |
Water-Resource and Land-Use Issues
Authors : I. R. Calder
Date Published : 1998 -- Download PDF [1 MB] Abstract
The relationship between land use and hydrology is of interest worldwide. In many developing countries, extensive areas are undergoing land use change. The largest changes in terms of land area, and arguably also in terms of hydrological impacts, often arise from afforestation and deforestation activities (Calder 1992a) . |
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| SWIM Paper 2 |
How to Manage Salinity in
Irrigated Lands: A Selective Review
with Particular Reference to
Irrigation in Developing Countries
Authors : Jacob W. Kijne, S.A. Prathapar, M.C.S. Wopereis, K.L. Sahrawat
Date Published : 1998 -- Download PDF [266 KB] Abstract
Salinity has been associated with irrigated agriculture since its early beginnings. One reason is that irrigation often exacerbates the effects of salinity, which occurs naturally because of weathering of saline parent material derived from sea water deposits or other sources. |
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| SWIM Paper 1 |
Accounting for Water Use and Productivity
Authors : David Molden
Date Published : 1997 -- Download PDF [211 KB] Abstract
All science depends on its concepts. These are ideas which receive names. They determine the questions one asks, and the answers one gets. They are more fundamental than the theories which are stated in terms of them.
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| Headquarters : 127, Sunil Mawatha, Pelwatte, Battaramulla, Sri Lanka. Telephone +94-11 2880000 | Fax: +94-11 2786854 | Email: iwmi@cgiar.org |
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This page was last updated on
Tuesday, January 29, 2008
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