Your search found 22 records
1 Schultz, B.. (Ed.) Guidelines on the construction of horizontal subsurface drainage systems. ICID. xviii, 236p.
(Location: IWMI-HQ Call no: 631.7 G000 SCH Record No: H06155)
2 Schultz, B.. 1993. Design and construction of water management facilities in drainage areas. In Zakaria, S. (Ed.), Agricultural drainage: Proceedings of the National Conference on Agricultural Drainage, Melaka, Malaysia, 9-12 February 1993. Melaka, Malaysia: MANCID. pp.4.1-4.29.
(Location: IWMI-HQ Call no: 631.62 G714 ZAK Record No: H014718)
3 Groen, K. P.; Feddes, R. A.; Boesten, J. J. T. I.; Schultz, B.; Koopmans, R.; van Dam J. C. 1996. Emission of solutes in cracked clay soils. In Ragab, R.; El-Quosy, D. E. D.; van den Broek, B.; Pereira, L. S. (Eds.), Crop-water-environment models: Selected papers to the workshop organized by the ICID Working Group on "Sustainable Crops and Water Use" at the occasion of the 16th Congress of the International Commission on Irrigation and Drainage at Cairo, Egypt. Cairo, Egypt: ICID. Egypt National Committee. pp.29-41.
Simulation models ; Computer models ; Calibrations ; Leaching ; Clay soils ; Soil properties ; Soil water ; Rain
(Location: IWMI-HQ Call no: 631.7.1 G000 RAG Record No: H019363)
4 Schultz, B.. 1993. Land and water development: Finding a balance between implementation, management and sustainability. Delft, Netherlands: International Institute for Infrastructural, Hydraulic and Environmental Engineering (IHE) 39p.
Water resources development ; Water management ; Land development ; Hydraulics ; Hydrology ; Flood control ; Irrigation systems ; Design criteria ; Optimization ; Drainage
(Location: IWMI-HQ Call no: P 4375 Record No: H019649)
Inaugural address delivered on the occasion of the public acceptance of the Chair of Land and Water Development at the International Institute for Infrastructural, Hydraulic and Environmental Engineering (IHE), Delft, The Netherlands, March 18, 1993.
5 van Hofwegen, P.; Schultz, B.. (Eds.) 1997. Financial aspects of water management: Proceedings of the Third Netherlands National ICID Day, Delft, 20 March 1997. Rotterdam, Netherlands: A. A. Balkema. x, 113p.
Water management ; Irrigation management ; Financing ; Financial planning ; Water rates / Netherlands / Argentina / Asia / Delft / Mendoza
(Location: IWMI-HQ Call no: 631.7.4 G000 VAN Record No: H021181)
6 Schultz, B.. 2001. Irrigation, drainage and flood protection in a rapidly changing world. Irrigation and Drainage, 50(4):261-277.
Water management ; Flood control ; Population growth ; Irrigated farming ; Food production ; Sustainability ; Drainage ; Research institutes
(Location: IWMI-HQ Call no: PER Record No: H029385)
7 Schultz, B.. 2002. Role of dams in irrigation, drainage and flood control. International Journal of Water Resources Development, 18(1):147-162.
Dams ; Drainage ; Flood control ; Rivers ; Environmental effects ; Decision making ; Social aspects ; Economic aspects ; Rural development ; Irrigated farming ; Research institutes
(Location: IWMI-HQ Call no: PER Record No: H029858)
8 Schultz, B.; de Wrachien, D. 2002. Irrigation and drainage systems research and development in the 21st century. Irrigation and Drainage, 51(4):311-327.
Irrigation systems ; Drainage ; Planning ; Design ; Operations ; Maintenance ; Performance evaluation ; Modernization ; Institutional development ; Economic aspects ; Human resources ; Sustainability
(Location: IWMI-HQ Call no: PER Record No: H030718)
9 de Bruin, D.; Schultz, B.. 2003. A simple start with far-reaching consequences. Irrigation and Drainage, 52(1):51-63.
Water management ; Drainage ; History ; Land reclamation ; Waterlogging ; Flood water ; Desalinization ; Water quality ; Water policy / Netherlands
(Location: IWMI-HQ Call no: PER Record No: H031260)
10 Fahlbusch, H.; Schultz, B.; Thatte, C. D. (Eds.) 2004. The Indus Basin: History of irrigation, drainage and flood management. New Delhi, India: ICID. xix, 389p.
River basins ; History ; Irrigation management ; Modernization ; Flood control ; Urbanization ; Settlement ; Bunds ; Water lifting ; Irrigation canals ; Weirs ; Dams ; Hydroelectric schemes ; Infiltration ; Groundwater development ; Water table ; Waterlogging ; Land reclamation ; Soil salinity ; Tube wells ; Water delivery ; Flumes ; Watercourses ; Environmental effects ; Rehabilitation ; Domestic water ; Public health ; International cooperation ; Irrigated farming / India / Pakistan / Indus Basin / Himalayas
(Location: IWMI-HQ Call no: 631.7 G635 FAH Record No: H035352)
11 Ismail, S. M.; Depeweg, H.; Schultz, B.. 2004. Surge flow irrigation under short field conditions in Egypt. Irrigation and Drainage, 53(4):461-475.
(Location: IWMI-HQ Call no: PER Record No: H036096)
12 Mehari, A.; Schultz, B.; Depeweg, H. 2005. Where indigenous water management practices overcome failures of structures: The Wadi Laba spate irrigation system in Eritrea. Irrigation and Drainage, 54(1):1-14.
(Location: IWMI-HQ Call no: PER Record No: H036885)
13 Hollanders, P.; Schultz, B.; Shaoli, W.; Lingen, C. 2005. Drainage and salinity assessment in the Huinong Canal Irrigation District, Ningxia, China. Irrigation and Drainage, 54(2):155-173.
Salinity ; Assessment ; Drainage ; Irrigation canals ; Computer models ; Simulation models ; Groundwater ; Flow / China / Ningxia
(Location: IWMI-HQ Call no: PER Record No: H036956)
14 Schultz, B.; Thatte, C. D.; Labhsetwar, V. K. 2005. Irrigation and drainage - Main contributors to global food production. Irrigation and Drainage, 54(3):263-278.
(Location: IWMI-HQ Call no: PER Record No: H037452)
15 Mehari, A.; Depeweg, H.; Schultz, B.. 2005. Hydraulic performance evaluation of the Wadi Laba spate irrigation system in Eritrea. Irrigation and Drainage, 54(4):389-406.
(Location: IWMI-HQ Call no: PER Record No: H037815)
16 Wandee, P.; Schultz, B.; Tingsanchali, T. 2005. A model for optimization of water management in rice polders in Thailand. Irrigation and Drainage, 54(5):527-541.
Mathematical models ; Optimization ; Irrigated farming ; Rice ; Drainage ; Economic analysis / Thailand
(Location: IWMI-HQ Call no: PER Record No: H038208)
17 Mehari, A.; van Steenbergen, F.; Schultz, B.. 2005. Water rights and rules, and management in spate irrigation systems. In van Koppen, Barbara; Butterworth, J.; Juma, I. (Eds.). African Water Laws: Plural Legislative Frameworks for Rural Water Management in Africa: An International Workshop, Johannesburg, South Africa, 26-28 January 2005. pp.23-1/23-15.
(Location: IWMI-HQ Call no: IWMI 333.91 G100 VAN Record No: H038760)
(0.73 MB)
18 Mehari, A.; van Steenbergen, F.; Schultz, B.. 2007. Water rights and rules, and management in spate irrigation systems in Eritrea, Yemen and Pakistan. In van Koppen, Barbara; Giordano, Mark; Butterworth, J. (Eds.). Community-based water law and water resource management reform in developing countries. Wallingford, UK: CABI. pp.114-129. (Comprehensive Assessment of Water Management in Agriculture Series 5)
Water rights ; Irrigation management ; Spate irrigation ; Bunds ; Flood water / Eritrea / Yemen / Pakistan
(Location: IWMI HQ Call no: IWMI 346.04691 G000 VAN Record No: H040690)
19 Munir, Sarfraz; Schultz, B.; Khan, Abdul Hakeem; Suryadi, F. X.; Gichuki, Francis. 2007. Hydrodynamic behavior of a canal network under simultaneous supply and demand based operations. Paper presented at the USCID Fourth International Conference on Irrigation and Drainage held in Sacramento, California, USA, 3-6 October, 2007. 17p.
Irrigation canals ; Flow control ; Canal regulation techniques ; Crop based irrigation ; Water requirements ; Irrigation scheduling ; Simulation models / Pakistan / Machai Branch Canal / Pehure High Level Canal / Maira Branch Canal / North West Frontier Province / Swat River / Indus River
(Location: IWMI HQ Call no: IWMI 631.7.1 G730 MUN Record No: H040871)
The irrigation network of this study consists of three branch canals (the Machai Branch Canal, the Pehure High Level Canal (PHLC) and the Maira Branch Canal) connected to each other in such a way that the Machai Branch and the PHLC feed the Maira Branch Canal for providing a reliable irrigation service. The Machai Branch Canal has limited and erratic discharges and can not fulfill the peak water requirements of the Maira Branch Canal and therefore any deficiency in the supplies to the Maira Branch Canal is automatically compensated by the PHLC. PHLC is an automatic canal and has been equipped with Proportional Integral Derivative (PID) discharge controllers at its head whereas the Machai Branch Canal has fixed supply based operations. The Maira Branch Canal is also an automatically downstream controlled irrigation canal, which is operated according to crop water requirements using Crop Based Irrigation Operations (CBIO) model. Under this scheme of operations the flows remain changing most of the time following the crop water requirements curve. The frequent changes in discharges keep the canal in unsteady state conditions, which affect the functioning of automatic discharge and water level regulation structures. Efficient system operation is a prerequisite for getting better water productivity and the precise understanding of the behavior of the structures and canal’s hydrodynamics against such changes is a key for getting effective system operations. In this paper the canal’s hydrodynamic behavior and the automatic structures’ functioning have been assessed and suggestions have been provided to fine tune the automatic discharge controllers in order to avoid the oscillatory and abrupt hydrodynamic behavior in the canal. The guidelines have been provided for the operation of the secondary system for achieving smooth and sustainable operations of the canals. In addition to this the effects of any discharge variation in the Machai Branch Canal on the automatic discharge controller’s behavior also has been assessed.
20 Yihun, Y. M.; Haile, A. M.; Schultz, B.; Erkossa, Teklu. 2013. Crop water productivity of irrigated teff in a water stressed region. Water Resources Management, 27(8):3115-3125. [doi: https://doi.org/10.1007/s11269-013-0336-x]
Crop production ; Water productivity ; Water stress ; Water deficit ; Irrigation water ; Eragrostis tef ; Evapotranspiration ; Biomass ; Soil Moisture / Ethiopia
(Location: IWMI HQ Call no: e-copy only Record No: H045817)
(0.33 MB)
In water stressed regions such as the Central Rift Valley of Ethiopia, increasing Crop Water Productivity (CWP) is imperative for sustainable food and water security. This paper presents CWP of Teff (Eragrostic Tef), a staple food in Ethiopia and an important export crop. Field experiments were conducted under irrigated agriculture during the dry seasons in the periods: 1) November 2010 to March 2011; and 2) December 2011 to April, 2012 at Melkassa Agricultural Research Centre in Ethiopia. Teff crop was irrigated at sixteen different water application depths ranging from 100 to 25 % of the optimum Crop Water Evapotranspiration (ETc.) during the four growing stages, the initial, development, mid season and late season. The effect of seeding rates of 25 kg/ha and 10 kg/ha on lodging and yield of the crop was also determined. The main results were: 1) At 25 % deficit irrigation applied for the whole growth period, Teff CWP was the highest at 1.16 and 1.08 kg/m3 respectively for the seeding rates of 25 kg/ha and 10 kg/ha; 2) the CWP slightly decreased to 1.12 and 1.07 kg/m3 when the 25 % deficit was applied during the late season stage; 3) the crop yield response factor (Ky) of 1.09 and 1.19 was obtained for seeding rates of 25 kg/ha and 10 kg/ha respectively; the equivalent biomass response factor (Ky) was less at 0.88 and 0.96 respectively.
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