Your search found 130 records
1 Ahmad, Ch. B.; Ali, A.; Raza, A. 1993. Pattern of flow variations in distributaries and reachwise supply to outlets. In Government of Pakistan-USAID Irrigation Systems Management Research Project; IIMI, Proceedings: Irrigation Systems Management Research Symposium, Lahore, 11-13 April 1993. Vol.1. - Integrated watercourse management. pp.49-62.
(Location: IWMI-HQ Call no: IIMI 631.7.8 IIMI Record No: H012883)
Discharge measurements were undertaken on eight selected distributaries, each located on a major canal to evaluate the pattern of flow variations, the reachwise supply to outlets and the apparent reasons for such variations. The results based on monthly measurements from June 1990 to May 1992 show 122%, 98%, 95%, 89%, 87%, 85%, 74% and 68% of the designed discharge for Josar 8-R, Dhudian, Nall, Nasirpur, Kiddi, Sheikh Yousaf, Renala 1 RB and Madan distributaries respectively. Excess supply to Josar is probably to compensate for 33% closure period as it is run on rotation. Silt clearance from the distributaries during January 1992 increased water supply to all distributaries particularly four of them which also improved reachwise equity. The head reach outlets on each distributary were drawing more than design discharge (101-134%)at the expense of lower reaches, particularly tail reach (38-97%). During deficit supplies, tail reach watercourses suffer a greater loss, and at Dhudian supply to tail watercourses was totally cut off when supply dropped below 77% of the design discharge. On Nall distributary alone, reachwise supplies to outlets appear to be somewhat equitable because of recently completed rehabilitation work including lining of tail section. Apparent reasons for variations in outlet discharge, apart from variations in the feeding channel, were laxity in enforcement of outlet design parameters, reduced capacities, degraded sections and poor maintenance of the distributaries. In the cases of Dhudian and Nasirpur distributaries low discharge and greater length also appear to be major constraints.
2 IIMI. Pakistan; WAPDA. 1993. Beyond watercourse improvement: Pattern of flow variations in distributaries and reachwise supply to outlets. Irrigation Systems Management Research (ISM/R) Project: Final report. v.p.
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIM Record No: H013256)
(Location: IWMI HQ Call no: PER Record No: H013372)
(1.39 MB)
This paper discusses the usefulness and limitations of using the concept of Relative Water Supply (RWS) for evaluating the performance of irrigation systems, with special reference to systems irrigating rice. It then describes and demonstrates the use of a modification of RWS called Cumulative Relative Water Supply (CRWS), which can be used in conjunction with RWS. The advantage of CRWS is that it provides a measure of the cumulated RWS throughout a season, both in absolute terms at any given time, and in terms of the overall seasonal trend. It allows comparison of performance of an irrigation system or subsystem both to the target, and to other systems or subsystems. It can therefore be used both as an analytical tool by researchers, and as an operational tool by managers. The use of CRWS in conjunction with RWS is illustrated with examples from Sri Lanka.
4 Vander Velde, E. J.; Murray-Rust, D. H. 1992. Impacts of physical and managerial interventions on canal performance in Pakistan: a review of five years of field research studies. In International Irrigation Management Institute (IIMI). Advancements in IIMI's research 1992: a selection of papers presented at the Internal Program Review. Colombo, Sri Lanka: International Irrigation Management Institute (IIMI). pp.79-112.
(Location: IWMI HQ Call no: IIMI 631.7.8 G000 IIM Record No: H013474)
5 Shahid, B. A.; Kuper, M.; Vander Velde, E. J. 1994. Improving canal system management: An intervention to calibrate control structures in Punjab, Pakistan. In IIMI. Pakistan, Tenth progress report on managing irrigation systems to minimize waterlogging and salinity problems. Lahore, Pakistan: IIMI. pp.38.
(Location: IWMI-HQ Call no: IIMI 631.7.5 G730 IIM Record No: H014223)
6 Mehanna, S.; Huntington, R.; Antonius, R.; Fahim, M.; El Kadi, M. 1983. Water allocation among Egyptian farmers: Irrigation technology and social organization. Report prepared for the Ford Foundation Middle East and North Africa Regional Office. The American University in Cairo, Social Research Center. 111p.
(Location: IWMI-HQ Call no: P 4041 Record No: H017348)
7 Ben-Zvi, A. 1996. Effects and yield of the proposed Kinneret Bypass Project. Water International, 21(1):30-34.
(Location: IWMI-HQ Call no: PER Record No: H018346)
8 Bandaragoda, D. J. 1996. Water users' participation in irrigation management at distributary canal level: issues from IIMI's pilot projects. Paper presented at the National Seminar on Participatory Irrigation Management in Pakistan, Lahore, Pakistan, 11-13 August 1996. 14p.
(Location: IWMI HQ Call no: IIMI 631.7.3 G730 BAN Record No: H019067)
(6.21 MB)
(Location: IWMI HQ Call no: IIMI 631.7.3 G730 HAS Record No: H019410)
(1.12MB)
10 Visser, S. 1996. Canal water distribution at the secondary level in the Punjab, Pakistan: development of a simplified tool to estimate the canal water distribution at the distributary level. Thesis. Lahore, Pakistan: International Irrigation Management Institute (IIMI). Pakistan National Program. xiv, 145p. + annexes. (IWMI Pakistan Report R-010 / IIMI Pakistan Report S-010) [doi: https://doi.org/10.3910/2009.429]
(Location: IWMI-HQ Call no: IIMI 631.7.1 G730 VIS Record No: H019411)
(5.39 MB)
11 Vabre, A. 1996. Methodologies for design, operation and maintenance of irrigation canals subject to sediment problems: application to Pakistan - Literature review on practices in Pakistan. [Thesis] Literature review of a thesis for the M.Sc. in Environmental Physics and Chemistry from the Nationale Polytechnic Institute of Toulouse, France. vi, 34p.
(Location: IWMI-HQ Call no: IIMI 631.7.1 G730 VAB Record No: H019740)
12 Litrico, X. 1997. Alternative scenarios for improved operations at the main canal level: a study of Fordwah Branch, Chishtian Subdivision using a mathematical flow simulation model. Thesis. Lahore, Pakistan: International Irrigation Management Institute (IIMI). Pakistan National Program; Montpellier Cedex, France: Agricultural and Environmental Engineering Research Institute (CEMAGREF), Division Irrigation. 144p. + annexes. (IWMI Pakistan Report R-023 / IIMI Pakistan Report R-023) [doi: https://doi.org/10.3910/2009.439]
(Location: IWMI-HQ Call no: IIMI 631.7.1 G730 LIT Record No: H019741)
(3.88 MB)
13 Kuper, M.; Litrico, X.; Habib, Z. 1996. Analyzing the impact of alternative operational rules on water distribution. In Badruddin, M.; Skogerboe, G. V.; Shafique, M. S. (Eds.). Proceedings of the National Conference on Managing Irrigation for Environmentally Sustainable Agriculture in Pakistan, Islamabad, Pakistan, 5-7 November 1996. Volume II - Papers on the theme, managing canal operations. Lahore, Pakistan: International Irrigation Management Institute (IIMI). Pakistan National Program. pp.1-21.
(Location: IWMI HQ Call no: IIMI 631.7 G730 BAD Record No: H020185)
(0.31 MB)
14 Habib, Z.; Kuper, M. 1996. Performance assessment of an irrigation system: application to the Fordwah Branch Canal System. In Badruddin, M.; Skogerboe, G. V.; Shafique, M. S. (Eds.). Proceedings of the National Conference on Managing Irrigation for Environmentally Sustainable Agriculture in Pakistan, Islamabad, Pakistan, 5-7 November 1996. Volume II - Papers on the theme, managing canal operations. Lahore, Pakistan: International Irrigation Management Institute (IIMI). Pakistan National Program. pp.30-61.
(Location: IWMI HQ Call no: IIMI 631.7 G730 BAD Record No: H020187)
(0.87 MB)
(Location: IWMI-HQ Call no: 631.7.8 G635 CEN Record No: H020237)
16 Jayakumar, M.; Kuruvila, V. O.; Cherian, J. C.; Joseph, K. (Eds.) 1992. An analytical report on physical, agronomic and socio-economic system survey conducted in Kakkody Branch Canal Commands of Kuttiyadi Irrigation Project. Unpublished report, CWRDM, Calicut, Kerala, India. vii, 69p. + annexes.
(Location: IWMI-HQ Call no: 631.7.8 G635 JAY Record No: H020238)
17 Rehman, S-ur. 1992. Farm level irrigation practices in two canal systems in the North West Frontier Province of Pakistan. Unpublished report, IIMI - Pakistan. 18p. (Discussion paper)
(Location: IWMI-HQ Call no: IIMI 631.7.6.2 G730 REH Record No: H020475)
18 Bandaragoda, D. J.; Rehman, S-ur. 1993. Farm level irrigation practices in Chashma Right Bank Canal. Paper presented in the Workshop on CropBased Irrigation Operations Study in CRBC, at D. I. Khan, Northwest Frontier Province (NWFP), Pakistan, 14-15 March 1993. 13p.
(Location: IWMI HQ Call no: IIMI 631.7.6.2 G730 BAN Record No: H020476)
(5.7 MB)
19 Srivastava, L. P. 1992? Organising farmers of Paliganj Distributary Command in Sone Canal System (Bihar): A case study. Unpublished report. Patna, Bihar, India: Water and Land Management Institute. 12p.
(Location: IWMI-HQ Call no: P 4554 Record No: H021351)
20 Srivastava, L. P. 1992. Farmers' participation in operation of Paliganj Dy - (Sone Canal System, Bihar): A case study. Unpublished report. Patna, Bihar, India: Water and Land Management Institute. 20p.
(Location: IWMI-HQ Call no: P 4555 Record No: H021352)
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