Your search found 643 records
1 de los Reyes, R. P. 1980. Managing communal gravity systems: Farmers' approaches and implications for program planning. Quezon City, Philippines: Institute of Philippine Culture. Ateno de Manila University. xvi, 125p.
Surface irrigation ; Water distribution ; Water rights ; Water supply ; Canals ; Farmer managed irrigation systems / Philippines
(Location: IWMI-HQ Call no: 631.7.6.2 G732 DEL Record No: H025)
2 Litwiller, K. E.; El-Kady, M.; Gates, T. K.; Hanson, E. G. 1984. The relation between irrigation water management and high water tables in Egypt. Cairo, Egypt: Egypt Water Use and Management Project. x, 83p. (EWUP technical report no.61)
Evapotranspiration ; Irrigation practices ; Percolation ; Water management ; Canals ; Drainage ; Maintenance / Egypt
(Location: IWMI-HQ Call no: 631.7.1 G232 LIT Record No: H0157)
(1.27 MB)
High water table levels presenting hazards to crop growth were measured at field sites in upper, middle, and lower Egypt. Water table contribution to evapotranspiration was significant at each site. A water balance model of the water table aquifer was used to predict the effect of various interventions on water table levels. Desirable lower water table levels could not be maintained through on-farm irrigation efficiency improvement including lining of on-farm channels while using surface irrigation methods. Branch, distributary, and private canal lining would have negligible effect on water table levels. Corresponding increases in required water deliveries would be expected.
3 Madhya Pradesh. Directorate of Economics and Statistics. 1985. Socio-economic profile of the command area proposed under water management area scheme: Ajnal irrigation project - District Bhopal. Madhya Pradesh, India: The Directorate. 101 p.
Costs ; Irrigation programs ; Agricultural production ; Water management ; Statistics ; Cropping systems ; Land use ; Wheat ; Canals / India / Madhya Pradesh
(Location: IWMI-HQ Call no: 631.7.4 G635 IND Record No: H0130)
4 Indian Water Resources Society. 1982. Workshop on Water Distribution Practices, July 2-3 1982: Proceedings. Roorkee, India: India Water Resources Society. 118p.
Water distribution ; Tube wells ; Canals ; Irrigation efficiency ; Water supply ; Farmers' attitudes / India
(Location: IWMI-HQ Call no: 631.7.6.3 G635 IND Record No: H0136)
5 Evangelista, D. L.; Torres, R. D.; Faigmane, M. M. 1975. The economics of groundwater irrigation. In International Rice Research Institute. Water management in Philippine irrigation systems: research and operations. Los Banos, Laguna, Philippines: International Rice Research Institute (IRRI). pp.195-206.
(Location: IWMI-HQ Call no: 631.7.6 G732 INT Record No: H018)
A survey of 52 small-scale pumping units in Quezon and Batangas provinces in 1971-72 reveals that pump irrigated rice farms had positive net returns, with the wet season returns slightly greater than those of the dry season. But pump systems in the study areas performed poorly. They had low pump discharge rates and served limited areas. Four inch pumps had a greater average pump discharge than 5-inch pumps operating even at lower revolutions per minute. No substantial differences were found in yields of farms irrigated from different water table depths, or of different soil types. There were significant differences in pump discharge among soil types although they were not significant with respect to depth of water table. It was also found that area served was more dependent on available irrigable land than on soil type or water table depth. The study revealed that water is often conveyed through poorly maintained earth canals which we believe considerably reduced the efficiency of water use. The most common method of irrigation fee payment is 20 percent of net product shared by the tenant and landlord in both the wet and dry seasons. The major problem of pump owners is the lack of cash for pump repairs.
6 Gwinn, W. R.; Gates, T. K.; Hassan, A. R.; Wafik, E.; Nielsen, E. 1984. Structural specifications and construction of a canal system for gravity irrigation. Cairo, Egypt: Egypt Water Use and Management Project. vii, 63p. (EWUP project technical report no.51)
Rehabilitation ; Watercourses ; Canals ; Water distribution ; Project planning ; Mechanization / Egypt
(Location: IWMI-HQ Call no: 631.7.7 G232 GWI Record No: H039)
(1.77 MB)
A water delivery system in Middle Egypt was renovated to providecontrolled gravity flow for more efficient distribution and use of irrigation water. After thorough planning and design, structural specifications were prepared for watercourse renovation, hydraulic control structures, internal access roads, and land leveling. Contracts were awarded and construction was initiated. The effort to perform extensive renovation of a water delivery system at the farm level required an experimental approach to develop the best methods for quality construction with the least disruption to farming practices and irrigation schedules. A summary of the specifications, the contracts and costs, the construction procedures, and recommendations for future work were prepared.
7 El-Sheiek, K.; EWUP. Cairo Office Design Team. 1984. Baseline data for improvement of a distributary canal system. Cairo: Egypt Water Use and Management Project. viii, 57p. (EWUP project technical report no.72)
Water supply ; Social aspects ; Irrigation design ; Irrigation efficiency ; Canals ; Cropping systems / Egypt
(Location: IWMI-HQ Call no: 631.7.1 G232 ELS Record No: H040)
(1.13 MB)
The EWUP conducted an irrigation research and development program from 1978 to 1984 in the Abu Raya area served by the Daqalt Canal in an effort to improve irrigation water management. Using an interdisciplinary effort, the program included the design, construction and operation of the Daqalt Canal system to deliver water to all farms in sufficient quantity at appropriate times to meet all water needs; to deliver water at an adequate and equitable flow rate and head and to minimize surface losses to drains. The original system was designed, constructed and operated under certain physical and operational assumptions that would minimize use of water while maximizing crop yields for all individual users. The report describes the physical characteristics of the existing system including water supply, canal structures, canal and mesqa surveys, soil conditions, crop patterns, water table levels, on-farm irrigation and water delivery requirements. The socio-economic characteristics of the existing system were also evaluated to assist in developing an equitable water user management program. The Daqalt Canal does not meet its original objectives due to water shortages, inadequate and inequitable flow rates and heads, and large surface losses to drains. These problems are caused by ineffective physical structures operation, conflicts existing with irrigation timing preferences, and poor canal maintenance. As such, the performance of the system falls short of that desired due to incorrect assumptions and improper management, and the entire water delivery system requires renovation within the context of the larger irrigation system. It is recommended that a complete hydraulic model of the existing Daqalt system should be developed under the constraint of available water levels in the Mit Yazid Canal, and the design re-evaluated in light of this model. The renovation process should continue, and water users themselves amalgamated into the design and operation of the water management plan.
8 El-Falaky, A. M.; Scott, V. H. 1984. Water quality of the irrigation canals, drains and groundwater in El-Minya, El-Mansuriya and El-Sheikh project sites. Cairo: Egypt Water Use and Management Project. vii, 120p. (EWUP project technical report no.62)
(Location: IWMI-HQ Call no: 631.7.6.3 G232 ELF Record No: H041)
A water quality monitoring analysis for the canals, drains and shallow groundwater in the three Project sites (i.e. Abyuha in El-Minya Governorate, El-Hammami and Beni Magdul in El-Mansuriya, Giza Governorate, and Abu Rayain Kafr El-Skeikh Governorate) was carried but during the period from March1982 to February 1983, for the purpose of studying quality changes with time, assessing the suitability of water for irrigation and providing a critically needed information for the conjunctive water use. The approach taken to evaluate water quality was based on "Guidelines" which indicate thepotential of irrigation water. However, the true suitability of a given water for irrigation depends on the management capability of the water user and the specific conditions of use. The chemical analysis showed that canal water is of good quality for irrigation purposes throughout the whole year. The water quality deteriorated while passing through the soil. The salinity and sodicity of the shallow groundwater were 3 to 7 times greater than those of canal water, indicating that the water is moderately saline and highly alkaline. On the other hand, the quality of drainage water varied widely from time to time during the year and also with the location on the drain section. On the average, the drainage water in Mansuriya area falls in the category of "causing increasing salinity and sodicity problems" when used in irrigation. In Kafr El-Sheikh, the drainage water could be classified as moderately saline and highly alkaline throughout most of the year except during winter closure where it increased appreciably to a degree which might cause a severe sodicity problem.
9 Sivanappan, R. K.; Gandhi, M. 1982. Water distribution at outlet level farmers' approach and implication for improvement. In Indian Water Resources Society, Workshop on Water Distribution Practices, July 2-3, 1982: Proceedings (pp. 113-118). Roorkee: Indian Water Resources Society.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 IND Record No: H0169)
10 Pandit, R. N. 1982. Water distribution practices on state deep tubewells in Haryana State. In Indian Water Resources Society, Workshop on Water Distribution Practices, July 2-3, 1982: Proceedings (pp. 95-111). Roorkee: Indian Water Resources Society.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 IND Record No: H0170)
11 Indonesia. Directorate General of Water Resources Development. 1983. Data analysis. Cambridge, UK: Sir MacDonald & Partners Asia. 8p. (East Java irrigation project TM 4.3)
(Location: IWMI-HQ Call no: 631.7 G673 IND Record No: H0208)
12 Indonesia. Directorate General of Water Resources Development. 1983. Regular maintenance. Cambridge, UK: Sir MacDonald & Partners Asia. 8p. (East Java irrigation project TM 5.3)
(Location: IWMI-HQ Call no: 631.7.1 G662 IND Record No: H0207)
13 Indonesia. Directorate General of Water Resources Development. 1983. Schematic operation maps: Survey and mapping. Cambridge, UK: Sir MacDonald & Partners Asia. 15p. (East Java irrigation project TM 2.5)
(Location: IWMI-HQ Call no: 631.7.1 G662 IND Record No: H0213)
14 Indonesia. Directorate General of Water Resources Development. 1981. East Java irrigation operation and maintenance. Cambridge, UK: Sir MacDonald & Partners Asia. Vol.2; v.p.; Vol.3; xiv, 82p.
Water law ; Agriculture ; Rice ; Maintenance ; Intensive cropping ; Canals ; Crop yield ; Maps ; Training ; Operating costs ; Organizations ; Water management / Indonesia / East Java
(Location: IWMI-HQ Call no: 631.7 G662 IND Record No: H0218)
Library has Vol. 2: Present practices; Vol. 3: New procedures
15 Stone, I. 1984. Canal irrigation in British India: Perspectives on technology change in a peasant economy. Cambridge: Cambridge University Press. xiii, 374 p. (Cambridge South Asian studies 29)
(Location: IWMI-HQ Call no: 631.7.6.2 G635 STO Record No: H0240)
16 Sivamohan, M. V. K. 1986. Issues in irrigated agriculture and command area development. New Delhi, India: Ashish Publishing House. xvi, 192 p.
(Location: IWMI-HQ Call no: 631.7.8 G635 SIV Record No: H0238)
17 India. Central Board of Irrigation and Power. 1980. Symposium on Operation and Maintenance of Canal Systems, New Delhi, 2-3May 1980. New Delhi, India: Central Board of Irrigation and Power. iii, 146 p.
(Location: IWMI-HQ Call no: 631.7.6.2 G635 IND Record No: H0264)
18 Palanisami, K. 1984. Irrigation water management: The determinants of canal water distribution in India - a micro analysis. New Delhi, India: Agricole Publishing Academy. xv, 120 p.
(Location: IWMI-HQ Call no: 631.7.6.2 G635 PAL Record No: H0266)
19 Singh, P. N. 1983. Chatra canal, Nepal: Vortex tube field measurements. Wallingford, UK: Hydraulics Research Station. 40p. (Hydraulics Research Station report no.OD/55)
(Location: IWMI-HQ Call no: 631.7.6.2 G726 SIN Record No: H0283)
A vortex tube sediment extractor has been installed in Chatra Main Canal, Nepal. During the 1982 monsoon, field measurements were carried out on this tube to enable a comparison between observed values of efficiency and the values predicted by the Hydraulics Research design method. This report provides the analysis and results. The report also looks briefly at sediment problems overall in the canal, and at a combined operation strategy for two vortex tube installations.
20 Al, F. A.; Martella, D. R.; Tinsley, R. L. 1984. Irrigation practices of EWUP cases Abyuha and Abu Raya sites for 1979-80, 1980-81, 1981-82. Cairo, Egypt: Egypt Water Use and Management Project. vii, 74p. (EWUP project technical paper no.45)
Water use efficiency ; Water management ; Irrigable land ; Water resources ; Farming ; Water delivery ; Canals ; Crops / Egypt
(Location: IWMI-HQ Call no: 631.7.6.2 G232 ALF Record No: H0162)
The purpose of this report is to document the actual irrigation practices of the farmers in two Egypt Water Use and Management Project (EWUP) areas, Abyuha in El-Minya Governorate and Abu Raya in Kafr El-Sheik Governorate. Data on the farmer practices were abstracted from the EWUP R4 Farm Records for the 1979-1980, 1980-1981, and 1981-1982 record years. The study case data were divided into 15 day periods with the winter closure period eliminated from the analysis. A comparison of the actual planting and harvest dates with the expected dates indicated that the actual dates were later than the expected dates by about two weeks. A comparison of the actual number of irrigations with the expected number of irrigations indicated that farmers apply close to the expected number or fewer. The analysis indicated that irrigation gaps for some crops range as high as 89 days. The aggregate demand on the delivery system in both study areas tended to be highest in the periods immediately before and after winter closure and the summer periods, June through September. Comparing the measured water discharged into the Abyha canal with an estimated demand for selected periods indicated that relative fluctuations in the delivery of water correspond fairly well to the demand during the same period. A comparison of the measured water discharge into the Om Sen canal with an estimated demand for selected periods indicated excess delivery of water during the winter periods, periods where shortages of water delivery could have occurred, and a general lack of correspondence of the fluctuations in discharge to the fluctuations in demand.
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