Your search found 3 records
1 Garces-Restrepo, C.; Lazaro, R. C.; Akhand, N. A.. 1986. Methodologies to evaluate the performance of irrigation systems in Bangladesh. In Bangladesh Agricultural Research Council and Winrock International Institute for Agricultural Development, Methodologies to evaluate the performance of irrigation systems (pp. 142-168). Dhaka, Bangladesh: BARC and Winrock International.
(Location: IWMI-HQ Call no: 631.7.8 G584 BAN Record No: H01681)
Reviews the performance studies of irrigation projects in Bangladesh with attention to both internal and external evaluations. The paper gives a brief description of each project, project objectives, purpose of evaluation, methodology followed, and parameters used. Results of the evaluations, however, are not presented as the paper concentrates on the methodologies issue. Methodologies for evaluation ranged from simple field inspections with random interviews to surveys with full sampling techniques. Although most studies appeared to have been based on secondary sources some internal evaluation studies utilized primary data. Evaluation studies reviewed in the paper suggest that individuals, rather than institutions, have had the initiative to undertake studies dealing with the performance of irrigations systems. The authors also point out that the studies have been heavily biased towards socio-economic aspects of systems with some attention to agronomic issues. The technical and engineering component of the evaluation have been mostly neglected, although this appears to be changing. The paper concludes with three recommendations that the authors feel would be of great help towards enhancing the understanding of past, present, and potential performance of irrigation systems in Bangladesh.
2 Harun-ur-Rashid, M.; Akhand, N. A.. 1984. Forthcoming on-farm work with distribution systems by BARI and BAU through research project on Integrated Command area Development (IICAD) 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. 94-103). Dhaka: BARC.
Food production ; Small scale systems ; Tube wells ; Farmer managed irrigation systems ; Irrigation efficiency / Bangladesh
(Location: IWMI-HQ Call no: 631.7.1 G584 BAN Record No: H01462)
3 Akhand, N. A.; Larson, D. L.; Slack, D. C. 1995. Canal irrigation allocation planning model. Transactions of the ASAE, 38(2):545-550.
Irrigation canals ; Irrigation management ; Planning ; Models ; Water allocation ; Linear programming ; Water demand ; Irrigation scheduling / USA / Arizona
(Location: IWMI-HQ Call no: P 4109 Record No: H017663)
A water allocation model was developed to recommend allocation of irrigation water to different crop fields in a canal-based irrigation project. Model components are an irrigation scheduling program to predict irrigation water demands, a crop response model to compute crop yields, and a canal delivery model to check the physical feasibility of water delivery. Multiperiod linear programming is utilized to determine the optimal allocation strategy, which maximizes irrigation benefits. Allocation constraints are irrigation water demand, irrigation water availability, canal delivery capacity, minimum irrigation limitations, and crop response model limitations. The allocation model was validated using crop, soil, canal, and irrigation management data for MAC, a University of Arizona farm.
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