Your search found 19 records
1 Wolters, W.; Ghobrial, N. S.; Bos, M. G. 1988. Division of irrigation water in the Fayoum, Egypt. Irrigation and Drainage Systems, 1(2):159-172.
Irrigation programs ; Flow discharge ; Water use efficiency ; Water management ; Water distribution ; Water control / Egypt
(Location: IWMI-HQ Call no: PER Record No: H02688)
2 Wolters, W.; Ghobrial, N. S.; Eisa, M. 1988. Calibration of weirs in the Fayoum, Egypt. Irrigation and Drainage Systems, 1(2):173-185.
(Location: IWMI-HQ Call no: PER Record No: H01768)
3 Wolters, W.; Ghobrial, N. S.; van Leeuwen, H. M.; Bos, M. G. 1989. Managing the water balance of the Fayoum Depression, Egypt. Irrigation and Drainage Systems, 3(2):103-123.
(Location: IWMI-HQ Call no: PER Record No: H05777)
A study of the water balances of the Fayoum irrigated lands and Lake Qarun was made to investigate the management of the irrigation system and the efficiency of irrigation water use. The two water balances are strongly interrelated. The drainage flow to Lake Qarun and the water level of the Lake are in delicate balance. A rise in lake level causes the inundation of adjacent land. Management of the Fayoum water balance assumes control over irrigation water flows, but this control has technical and organizational limitations. Also discussed is the influence of irrigation practices in the Fayoum on the water balance (e.g. the autumn flushing of fields and farmer's preference for not irrigating at night in winter). Notwithstanding a high overall efficiency, irrigation efficiency during the winter is low. The reasons for this are given, together with the constraints against improving system management. Improved uniformity of the division and application of irrigation water will enable a better technical control of flows and will result in better water management in the Fayoum.
4 Bos, M. G.; Wolters, W.. 1989. Project or overall irrigation efficiency. In Rydzewski, J. R.; Ward, C. F. (Eds.) Irrigation theory and practice. Proceedings of the International Conference, University of Southampton, 12-15 September. London: Pentech Press. pp.499-506.
(Location: IWMI-HQ Call no: 631.7 G000 RYD Record No: H07539)
5 Bos, M. G.; Wolters, W.. 1990. Water charges and irrigation efficiencies. Irrigation and Drainage Systems, 4(3):267-278.
(Location: IWMI-HQ Call no: PER Record No: H07743)
6 Wolters, W.; Bos, M. G. 1989. Irrigation performance assessment and irrigation efficiency. Reprinted from ILRI Annual Report 1989. pp.25-37. (ILRI reprint no.64)
(Location: IWMI-HQ Call no: P 1820 Record No: H08075)
7 Bos, M. G.; Wolters, W.; Drovandi, A.; Morabito, J. A. 1991. The Viejo Retamo secondary canal: Performance evaluation case study - Mendoza, Argentina. Irrigation and Drainage Systems, 5(1):77-88.
(Location: IWMI-HQ Call no: PER Record No: H08868)
8 Wolters, W.. 1992. Influences on the efficiency of irrigation water use. Wageningen, The Netherlands: ILRI. 150p.
(Location: IWMI-SA Call no: 631.7.2 G000 WOL Record No: H011976)
9 Wolters, W.; Zevenbergen, A. W.; Bos, M. G. 1991. Satellite remote sensing in irrigation. Irrigation and Drainage Systems, 5(4):307-323.
(Location: IWMI-HQ Call no: PER Record No: H09975)
10 Wolters, W.; Bos, M. G. 1990. Interrelationship between irrigation efficiency and the re-use of drainage water. In Symposium on Land Drainage for Salinity Control in Arid and Semi-arid Regions, Cairo, Egypt, 25 February - 2 March 1990. Vol.3: Presented papers. Session III - Session IV - Session V. Cairo, Egypt: Ministry of Public Works and Water Resources. pp.237-245.
(Location: IWMI-HQ Call no: 631.7.2 G000 SYM Record No: H011345)
Irrigation efficiency and the re-use of drainage water are interrelated. In the Fayoum, Egypt, re-use has a pronounced influence on the overall irrigation efficiency and is used to counteract non-uniformity of supply over the irrigated area. A river basin with several consecutive projects, each with a low overall irrigation efficiency, can reach a high efficiency through re-use at river-basin level.
11 Smedema, L. K.; Wolters, W.; Hoogenboom, P. J. 1992. RE-USE simulation in irrigated river basin. Journal of Irrigation and Drainage Engineering, 118(6):841-851.
(Location: IWMI-HQ Call no: PER Record No: H011698)
12 De Veer, M.; Wormgoor, J. A.; Rizo, R. G.; Wolters, W.. 1993. Water management in tertiary units in the Fayoum, Egypt. Irrigation and Drainage Systems, 7(1):69-82.
Farmer managed irrigation systems ; Water user associations ; Water management ; Tertiary level irrigation / Egypt
(Location: IWMI-HQ Call no: PER Record No: H013384)
13 Jurri%ns, M.; Wolters, W.. 1993. Can protective irrigation be more efficient? Paper presented at the International Conference on Hydrology and Water Resources, Delhi, India, December 1993. 11p.
Protective irrigation ; Irrigation systems ; Irrigation efficiency ; Irrigation canals ; Irrigation design ; Water allocation / India / Karnataka / Tungabhadra
(Location: IWMI-HQ Call no: P 3577 Record No: H015169)
14 Visser, T. N. M.; Wolters, W.; Smit, M. F. R.; Khalek, M. A. 1993. Effect of reuse on irrigation efficiencies in the Eastern Nile Delta, Egypt using the SIWARE model. In ICID, 15th International Congress on Irrigation and Drainage, The Hague, The Netherlands, 1993: Water management in the next century: Transactions: Vol.1-D, Question 44, R104-R118: Planning and design of irrigation and drainage systems. New Delhi, India: ICID. pp.1485-1500.
Water reuse ; Water quality ; Drainage ; Irrigation efficiency ; Simulation models ; Performance ; Evapotranspiration ; Constraints / Egypt / Nile River
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H015492)
15 Knops, J. A. C.; Bhutta, M. N.; Malik, H.; Wolters, W.. 1996. Towards improved drainage performance in Pakistan. In Vincent, B. (Ed.), 16th ICID Congress: Sustainability of Irrigated Agriculture - Evaluation of the Performance of Subsurface Drainage Systems: Transactions of the Workshop, Cairo, Egypt, 15-22 September 1996. New Delhi, India: ICID. pp.127-137.
Farmer participation ; Participatory rural appraisal ; Farmers associations ; Farmer-agency interactions ; Non-governmental organizations ; Drainage ; Irrigation management / Pakistan
(Location: IWMI-HQ Call no: ICID 631.7.8 G000 VIN Record No: H019506)
16 Saleem Bashir, M.; Ittfaq, M.; Wolters, W.; Bhutta, M. N. 1996. Performance of interceptor drains along Chashma right bank canal, Pakistan. In Vincent, B. (Ed.), 16th ICID Congress: Sustainability of Irrigated Agriculture - Evaluation of the Performance of Subsurface Drainage Systems: Transactions of the Workshop, Cairo, Egypt, 15-22 September 1996. New Delhi, India: ICID. pp.183-191.
Irrigation canals ; Drains ; Design ; Subsurface drainage ; Performance evaluation ; Seepage ; Groundwater ; Simulation models ; Pumping / Pakistan / North-West Frontier Province / Chashma Right Bank Canal
(Location: IWMI-HQ Call no: ICID 631.7.8 G000 VIN Record No: H019508)
17 Bhutta, M. N.; Wolters, W.. 1996. Drainage and the environment in Pakistan. 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, November 5-7, 1996. Volume I - Inauguration and deliberations. Theme III: Environmental management of irrigated lands - Issue paper. Lahore, Pakistan: IIMI Pakistan. National Program. pp.30-40.
Irrigation management ; Irrigable land ; Hydrology ; Irrigation effects ; Drainage ; Pipes ; Water reuse ; Environmental effects ; Waterlogging ; Tube wells ; Water table ; Soil salinity / Pakistan / Indus Basin
(Location: IWMI-HQ Call no: IIMI 631.7 G730 BAD Record No: H020183)
18 Bhutta, M. N.; Wolters, W.. 1997. IWASRI research, value for money. Grid: IPTRID Network Magazine, 10:3.
(Location: IWMI-HQ Call no: P 4631 Record No: H021487)
19 Boonstra, J.; Wolters, W.; Gupta, S. K. 2001. Salinity control in canal commands: the Indo-Dutch Network Project. Grid: IPTRID Network Magazine, 18:13.
Salinity control ; Networks ; Water management ; Irrigation canals ; Waterlogging ; Drainage / India
(Location: IWMI-HQ Call no: P 5895 Record No: H029012)
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