Springer Science and Business Media LLC

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
Yield measures of irrigation performance in Pakistan
Springer Science and Business Media LLC - - 1991
M. A. Bhatti, Frank Schulze, G. Levine
Turnover and irrigation service fees
Springer Science and Business Media LLC - Tập 4 - Trang 231-247 - 1990
Douglas Vermillion, Sam H. Johnson
This paper reviews the implications of the new economic policies of turning over public irrigation systems to local water users and irrigation service fees that are in the process of being implemented by the Indonesian Government. These policies are designed to ensure that irrigation is economically sustainable over the next decades. The turnover program has already made considerable progress and,...... hiện toàn bộ
Calibration of weirs in The Fayoum, Egypt
Springer Science and Business Media LLC - - 1987
W. Wolters, Nadi Selim Ghobrial, Mohamed Eisa
Design of subsurface drainage disposal structures: assessment of storage capacity
Springer Science and Business Media LLC - Tập 1 - Trang 231-237 - 1987
S. K. Gupta, R. J. Oosterbaan
Storage capacity-discharge relationships have been derived. These relationships can be used to predict the maximum storage capacity for the storage structures in subsurface drainage systems. Practical applications have been dealt with using field data representing situations in Indo-Gangetic Plains of India. Though the relationships can be useful for designing either a sump or an evaporation pond,...... hiện toàn bộ
Farmer's perspective on irrigation performance
Springer Science and Business Media LLC - - 1990
Mark Svendsen, Leslie E. Small
Of the many client groups with interests in irrigation system performance, farmers are probably the least often considered. This paper attempts to explore the meaning of irrigation performance from their perspective, highlighting at the outset basic difference between this perspective and that of system managers. It then reviews several important concepts underlying a consideration of performance ...... hiện toàn bộ
Numerical Analysis to Solve the Hydraulics of Trickle Irrigation Units
Springer Science and Business Media LLC - Tập 16 - Trang 53-68 - 2002
Numan Mizyed
A model to solve the hydraulics of trickleirrigation units is developed in thisstudy. This model is based on utilizingNewton Raphson technique. The modelconverts laterals into equivalent outletsthrough utilizing a simple power relationbetween inlet lateral discharge andhydraulic head. This relation is obtainedthrough least squares analysis betweeninlet lateral discharge and hydraulic head. This st...... hiện toàn bộ
Design and Performance Analysis of Low Pressure Irrigation Distribution Systems
Springer Science and Business Media LLC - Tập 17 - Trang 305-324 - 2003
L.S. Pereira, M.J. Calejo, N. Lamaddalena, A. Douieb, R. Bounoua
Low-pressure pipe distribution systems forsurface irrigation provide both off- andon-farm recognized environmental benefits.However, expected benefits can only beattained when adequacy, dependability andequity of systems are high enough tosupport appropriate conditions for wateruse on the farm. An innovative methodologyfor design and analysis is proposed anddescribed, which includes the generation...... hiện toàn bộ
Water Productivity from Integrated Basin Modeling
Springer Science and Business Media LLC - Tập 13 - Trang 275-290 - 1999
Peter Droogers, Geoff Kite
It is obvious that real water saving measures are only possible if the current water resources are clearly understood. For a basin in western Turkey, simulation modeling at three different scales, field, irrigation scheme and basin level was performed to obtain all terms of the water balance. These water balance numbers were used to calculate the Productivity of Water (PW) at the three levels. The...... hiện toàn bộ
Diagnostic expert systems for land drainage decisions
Springer Science and Business Media LLC - Tập 2 - Trang 139-146 - 1988
N. Haie, R. W. Irwin
The structure of an expert system is briefly described and the advantages of these design support systems are reviewed. The potential and benefits of the application of expert systems in land drainage is large. A simple situation in land drainage is used to delineate the problem domain and a separate knowledge base is created. The probable solution to the problem is derived.
Design and management nomograph for furrow irrigation
Springer Science and Business Media LLC - Tập 7 - Trang 29-41 - 1993
D. Zerihun, J. Mohan Reddy, J. Feyen, G. Breinburg
There exist capabilities for analyzing the behavior of surface flow and the ultimate distribution of infiltrated water in furrow irrigation. The corresponding synthesis, i.e., the selection of appropriate combinations of inflow rates, cutoff times and length of furrow — design and management, currently not so well established, is treated herein. A design-management nomograph is proposed for free d...... hiện toàn bộ
Tổng số: 382   
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 10