Your search found 242 records
(Location: IWMI-HQ Call no: 631.7.6.3 G584 HAM Record No: H079)
2 Reddy, J. M.; Clyma, W. 1984. Irrigation system improvement by simulation and optimization. Cairo, Egypt: Egypt Water Use and Management Project. 2 vols.; iv, 26p.; v, 35p. (EWUP technical report no.16; no.16B)
(Location: IWMI-HQ Call no: 631.7.1 G730 RED Record No: H0159)
Vol. 1 - Theory. A theory for simulation and optimization of an irrigation system to evaluate improvement alternatives was presented. The mathematical simulation model of an irrigation system was developed combining existing models of conveyance, application and water use subsystems. The performance of the subsystem simulation models was verified using available field data from Pakistan. A methodology for the optimal design of a level basin irrigation system was described. Irrigation system improvement alternatives such as canal lining, earthen improvement of the application system were evaluated. Vol. 2 - Application. Wheat production on a watercourse in Pakistan was analyzed. Models for water conveyance, application, and water use subsystems were calibrated with data from the study area. The existing irrigation system operated at a 39 percent application efficiency and 53 percent conveyance efficiency. Optimal design of the application system with precision land leveling provided net benefits of 3625 rupees (Rs) compared to Rs 2612 under traditional field conditions. Canal lining was not economical. Earthen improvement of the conveyance system was beneficial to the farmer with a net profit of Rs 3304. Combined improvement of the application and conveyance systems almost doubled the total net benefits over the traditional system, but with an increased level of investment. The increase in benefits was mostly a result of the increased irrigated area that could be irrigated after the improvements. The benefit/cost ratio of each improvement alternative was different. The difference in benefits between improving the conveyance system and the application system was small, but there was a significant difference in net benefits between any single improvement and the combined improvement of the application and conveyance systems.
3 Stone, I. 1984. Canal irrigation in British India: Perspectives on technology change in a peasant economy. Cambridge: Cambridge University Press. xiii, 374 p. (Cambridge South Asian studies 29)
(Location: IWMI-HQ Call no: 631.7.6.2 G635 STO Record No: H0240)
4 Sinha, B.; Bhatia, R. 1984. Economic appraisal of irrigation projects in India. New Delhi, India: Agricole Publishing Academy. xxxi, 487 p. (Studies in economic development and planning no. 27)
(Location: IWMI-HQ Call no: 631.7.4 G635 SIN Record No: H0241)
The book reviews alternative approaches to pre-sanction appraisal of irrigation projects such as those suggested by the Second Irrigation Commission, the World Bank and UNIDO. Details of alternative methodologies and social benefit cost analysis (SBCA) of various technical alternatives have been presented by using the Auranga Reservoir Project in Bihar as an illustration. A computer programme in Fortran 1V has been included as a useful tool for performing necessary appraisals and sensitivity analysis.
5 Nyberg, A. J.; Prabowo, D. 1982. Status and performance of irrigation in Indonesia and the prospects to 1990 and 2000. Washington, DC, USA: IFPRI. iv, 56p. (Rice policies in Southeast Asia project working paper no.4)
(Location: IWMI-India Call no: 631.7 G662 NYB Record No: H0430)
6 1972. Water in agriculture. Salisbury, Rhodesia: Government Printer. 197p. (RAJ technical bulletin no. 15)
(Location: IWMI-HQ Call no: 631 G176 WAT Record No: H0305)
7 Reuss, J. O. 1980. Optimization of lengths of alternative watercourse improvement programs. Fort Collins, CO, USA: Colorado State University. xi, 49 p. (Water management technical report no. 27)
(Location: IWMI-HQ Call no: 631.7.6.2 G730 REU Record No: H0346)
(Location: IWMI-HQ Call no: 631.7.7 G730 BOW Record No: H0335)
Over half of the water supplied to the watercourse at Tubewell 56L was lost before it reached the farmer's fields. This loss was primarily through the upper porous portions of the banks and in the vicinity of junctions where banks were thin. The 35 farmers in the 900-acre area served by this watercourse were motivated to organize themselves to rebuild their own earthen watercourse, according to specifications drawn up by Pakistani engineers. Low cost concrete diversion structures were developed and installed at junctions to eliminate continued burrowing of soil and degradation of banks near the junctions. The improvements reduced losses to about one-half their previous values and increased deliveries to the fields by over 50 percent. This watercourse improvement appears to be an ideal component for a development program designed to increase crop production. However, farmers require further information on how to use this water and other inputs to optimize crop production if they are to obtain full benefits from this extra water.
9 CARE, Bangladesh. 1984. Deep tubewell irrigation and credit program (DTICP): Evaluation of some primary and secondary effects. Dhaka, Bangladesh: CARE. [67 p.]
(Location: IWMI-HQ Call no: 631.7.4 G584 CAR Record No: H0463)
10 ADB. 1980. Irrigation development and management: Proceedings of the ADB regional seminar , Manila, 29 Jan - 16 Feb 1974. Manila, Philippines: ADB. xi, 267 p.
(Location: IWMI-HQ Call no: 631.7.8 G570 ASI Record No: H0488)
11 Palanisami, K.; Apinantara, A. 1984. Performance evaluation and investment priorities in irrigation systems of Northeast Thailand. Khon-Kaen, Thailand: [ix], 102 p.
(Location: IWMI-HQ Call no: 631.7.8 G750 PAL Record No: H0499)
12 Scudder, T.; Wimaladharma, K. P. 1984. The Accelerated Mahaweli Programme (AMP) and dry zone development. Worcester, MA, USA: International Development Program. Clark University.
(Location: IWMI-HQ Call no: 631.7 G744 SCU Record No: H0637)
Library has reports no. 4, 5 and 6.
(Location: IWMI-HQ Call no: 631.7 G750 THA Record No: H0689)
14 Bowen, R. L.; Young, R. A. n.d. Private and social irrigation net benefit functions for Egypt's northern delta. Fort Collins, CO, USA: Department of Agricultural and Natural Resource Economics. Colorado State University. 22p.
(Location: IWMI-HQ Call no: P 1076 Record No: H0710)
Estimates of net private and social benefits to irrigation water supply are shown for a case study area in the northern Nile delta region of Egypt. Net benefits are defined as gross revenues minus costs of production, including an imputed charge for family labor. Linear programming models of representative farms in the study area are formulated with particular reference to the possibilities of using less water per crop or shifting crops in response to changes in water supply. Model solutions are based both on government prices (with production controls) and hypothetical international market prices (with relaxed controls). Five different water supply scenarios are analyzed from current adequate levels of supply down to 40 percent reduction from that level. Total, average, and marginal net benefit functions are reported. Implications of the differences between the social and private benefit functions are discussed.
15 Chaudhary, M. A.; Ashraf, M. M. 1981. An economic analysis of level and structure of irrigation water charges. Islamabad, Pakistan: Pakistan Institute of Development Economics. xii, 286p.
(Location: IWMI-HQ Call no: 631.7.4 G730 CHA Record No: H0718)
16 1985. Summary report. New York, NY, USA: Social Science Research Council. v. p.
(Location: IWMI-HQ Call no: 631.7.8 G570 INT Record No: H0639)
17 Roskunpanit, S. 1979. Problems and constraints related to agricultural resources management: A case study of Nam Pong Irrigation Project. A thesis submitted to the faculty of graduate studies of Mahidol University for the degree of Technology of Environmental Management. x, 189p.
(Location: IWMI-HQ Call no: 631.7.8 G750 ROS Record No: H0664)
18 ADB. 1977. Appraisal of Nakdong River Basin Development Project in Korea. Manila, Philippines: ADB. iii, 109 p.
(Location: IWMI-HQ Call no: 631.7.8 G704 ADB Record No: H0757)
19 Easter, K. W.; Welsch, D. E. 1983. Socioeconomic issues in irrigation development and distribution. St. Paul, MN, USA: Department of Applied and Agricultural Economics. University of Minnesota. 64p. (Department of Applied and Agricultural Economics report 83-5)
(Location: IWMI-HQ Call no: 631.7.4 G000 EAS Record No: H0837)
(Location: IWMI-HQ Call no: 631.7.6.2 G730 PAI Record No: H0835)
Powered by DB/Text
WebPublisher, from