Your search found 28 records
1 Mirjahan, M. 1986. Evaluation of deep tubewell irrigation systems. In Bangladesh Agricultural Research Council and Winrock International Institute for Agricultural Development, Methodologies to evaluate the performance of irrigation systems (pp. 169-186). Dhaka, Bangladesh: BARC and Winrock International.
Performance evaluation ; Deep tube wells ; Tube well irrigation ; Channel improvement ; Irrigation practices / Bangladesh
(Location: IWMI-HQ Call no: 631.7.8 G584 BAN Record No: H01682)
The paper describes a field-oriented evaluation of the performance of eleven deep tubewell (DTW) based irrigation systems. In addition, the study served as a basis for developing a model that can be used in predicting the impact of various interventions (i.e., improvement of earth channels, lining of canals, upgrading on-farm water management practices, increase in pumping hours, etc.) on command area expansion. The methodology followed included intensive field data collection in five DTW command areas in Dhamrai (near Dhaka) and six DTW command areas in Thakurgaon (in northwest Bangladesh). Performance parameters utilized included conveyance, application, overall irrigation, unit, and pumping plant efficiencies. The impact of each of the interventions considered was then determined by comparing the predicted command under the modified system with that under the existing conditions. This, in turn, provides the necessary information for cost effectiveness analysis. The analysis indicates that DTW command areas could be increased significantly through measures including improvement of main and field channels, improvement of plot channels, better on-farm water management, land-levelling, and longer operating hours.
2 Hoque, T. 1984. Report on experiment of precast semicircular irrigation channels constructed under Serajgonl Integrated Rural Development Project. Dhaka, Bangladesh: BARC. In Bangladesh Agricultural Research Council, Improved distribution system for minor irrigation in Bangladesh: Proceedings of a workshop, Dhaka, 8-9 July 1984 (pp. 59-78). Dhaka: BARC.
Rural development ; Channel improvement ; Intensive cropping ; Tube wells ; Water management / Bangladesh
(Location: IWMI-HQ Call no: 631.7.1 G584 BAN Record No: H01459)
3 Easter, K. W. 1977. Improving village irrigation systems: An example from India. Land Economics, 53(1):56-66.
(Location: IWMI-HQ Call no: P 1301 Record No: H01985)
4 Mesa, O. J.; Gupta, V. K. 1987. On the main channel length-area relationship for channel networks. Water Resources Research, 23(11):2119-2122.
(Location: IWMI-HQ Call no: PER Record No: H02832)
5 Cunningham, A. B.; Anderson, C. J.; Bouwer, H. 1985. Effects of streambed processes on interaction between surface and groundwater. In Keyes, C. G. Jr., Ward, T. J., Development and management aspects of irrigation and drainage systems: Proceedings of the speciality conference, San Antonio, Texas. New York, NY, USA: ASCE. pp.54-66.
(Location: IWMI-HQ Call no: 631.7.8 G000 KEY Record No: H02836)
6 Foroud, W.; Ross, F. A. 1985. Water losses from an irrigation canal: Ditch dugouts system. In Keyes, C. G. Jr., Ward, T. J., Development and management aspects of irrigation and drainage systems: Proceedings of the speciality conference, San Antonio, Texas. New York, NY, USA: ASCE. pp.477-482.
(Location: IWMI-HQ Call no: 631.7.8 G000 KEY Record No: H02851)
7 Deacon, N. G. 1982. A resistivity technique for defecting leaks in lined channels: Preliminary investigation. Wallingford, UK: Hydraulics Research Station. 48p. (Report OD/39)
(Location: IWMI-HQ Call no: 631.7.6.1 G000 DEA Record No: H04335)
8 Hager, W. H. 1988. Mobile flume for circular channel. Journal of Irrigation and Drainage Engineering, 114(3):520-534.
(Location: IWMI-HQ Call no: PER Record No: H04549)
9 Yoganarasimhan, G. N.; Rao, R. V. 1979. Development of cost functions for canals. In Proceedings of the Workshop on Conjunctive Use of Surface and Ground Water, Roorkee, India, 12-14 April 1979. Vol. 1. Roorkee, India: Water Resources Development Centre, University of Roorkee. pp.cw41-cw58.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 PRO Record No: H04916)
10 Booth, D. B. 1990. Stream-channel incision following drainage-basin urbanization. Water Resources Bulletin, 26(3):407-417.
(Location: IWMI-HQ Call no: PER Record No: H06451)
11 1990. Drainage in system B: Maha season report 1989/90. Pimburattewa, Sri Lanka: Development Alternatives Inc. (DAI) 6p. + annex. (Mahaweli Down Stream Support Project (MARD))
(Location: IWMI-HQ Call no: 631.7 G744 DRA Record No: H07899)
12 Sur, H. S.; Singh, R.; Gill, J. S. 1990. Conveyance loss from field watercourse in south western Punjab and important consideration in channel lining. In Tyagi, N. K.; Joshi, P. K.; Gupta, R. K.; Singh. N. T. (Eds.) Management of irrigation system: Papers from the National Symposium on Management of Irrigation System, Karnal, India February 24-27 1988. Karnal, India: Central Soil Salinity Research Institute. pp.51-57.
(Location: IWMI-HQ Call no: 631.7 G635 TYA Record No: H08193)
13 Dawson, F. H.; Brabben, T. E. 1991. Conflicts of interest in designing environmentally-sound channels. In Woolridge, R. (Ed.) Techniques for environmentally sound water resources development: Papers presented to the African Regional Symposium held in Alexandria, Egypt, 17-19 February 1991. London, UK: Pentech Press. pp.137-154.
(Location: IWMI-HQ Call no: 333.91 G000 WOO Record No: H08249)
14 Leonhardt, Z. C.; Gant, S. 1989. Preventive Maintenance Project/Channel Maintenance Project component of the Irrigation Management Systems Project: Start-up workshop report, Alexandria, Egypt, 1-5 August 1989. Washington, DC, USA: ISPAN. viii, 95p. (ISPAN report no.20)
(Location: IWMI-HQ Call no: 631.7.1 G232 LEO Record No: H09074)
15 Australia. Rural Water Commission of Victoria. 1988. Irrigation and drainage practice. Victoria, Australia: RWCV. viii, 262p.
Water supply ; Irrigation practices ; Drainage ; Irrigation operation ; Water management ; Irrigation management ; Water quality ; Water requirements ; Water distribution ; Surveys ; Pumping ; Design ; Channel improvement ; Pipes ; Surface drainage / Australia
(Location: IWMI-HQ Call no: 631.7.1 G922 AUS Record No: H04104)
16 Hin-Fatt Cheong. 1992. Discharge coefficient of lateral diversion from trapezoidal channel. Water Resources Journal, March:56-64.
(Location: IWMI-HQ Call no: PER Record No: H012980)
The discharge coefficient of a lateral opening in a prismatic trapezoidal main channel is determined for subcritical flow conditions from considerations of the conservation of energy and the conservation of momentum. The latter requires an empirical relationship for the local downstream component of the spillage velocity with the local downstream velocity in the main part of the channel. The discharge coefficients obtained by both considerations for a broad range of Froude numbers, combination of both side slopes of IV:mH with m = 0, 0.5, 1.0, and 2.0, and different lengths of lateral opening are found to be nearly the same. The measured water depth just downstream of the lateral opening is not recommended for use in the numerical determination of the discharge coefficient and the reasons are discussed in detail. The discharge coefficient is found to be related to the upstream Froude number and this relationship is empirically established.
17 Navkal, A. H. 1982. Lining of small channels. In Water and Land Management Institute, Maharashtra, Workshop in Water Resources Planning and Management, Maharashtra, India, 22-24 January 1982. Maharashtra, India: WALMI. pp.E1-E12.
(Location: IWMI-HQ Call no: 631.7.8 G635 WAT Record No: H013076)
18 Kahlown, M. A.; Hamilton, J. R. 1994. Status and prospects of karez irrigation. Water Resources Bulletin, 30(1):125-134.
Tube well irrigation ; Water management ; Channel improvement ; Water users ; Cropping systems ; Water loss / Pakistan / Balochistan
(Location: IWMI-HQ Call no: PER Record No: H014283)
19 Diamant, B. Z. 1980. Environmental repercussions of irrigation development in hot climates. Environmental Conservation, 7(1):53-58.
Environmental effects ; Public health ; Disease vectors ; Chemical control ; Biological control ; Irrigation programs ; Reservoirs ; Channel improvement ; Legislation
(Location: IWMI-HQ Call no: P 3661 Record No: H015601)
20 D"ring, M. 1993. Historical irrigation-systems in the Valais/Switzerland. In ICID, 15th International Congress on Irrigation and Drainage, The Hague, Netherlands, 1993: Water management in the next century: Transactions: Vol.1-I: History special session. R.8. New Delhi, India: ICID. pp.121-132.
Irrigation systems ; Channel improvement ; Construction ; Water distribution ; History / Switzerland
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H015741)
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