Your search found 9 records
1 Chandio, B. A.; Koondhar, I. D. M.; Bhutto, H. B. 1983. Numerical modelling of mass transfer in groundwater. Lahore, Pakistan: Centre of Excellence in Water Resources Engineering. In Centre of Excellence in Water Resources Engineering, Proceedings of the International Seminar on Water Resources Management, Lahore, 22-27 October 1983 (pp. 46-54). Lahore: Centre of Excellence in Water Resources Engineering.
(Location: IWMI-HQ Call no: 631.7.1 G570 CEN Record No: H01493)
2 Soomro, G. M.; Jutras, P. T.; Chandio, B. A.. 1983. Crop water requirement of apple trees under drip irrigation system. Lahore, Pakistan: Centre of Excellence in Water Resources Engineering. In Centre of Excellence in Water Resources Engineering, Proceedings of the International Seminar on Water Resources Management, Lahore, 22-27 October 1983 (pp. 70-83). Lahore: Centre of Excellence in Water Resources Engineering.
(Location: IWMI-HQ Call no: 631.7.1 G570 CEN Record No: H01495)
3 Chandio, B. A.; Chandio, A. S. 1992. Modelling of skimming well for irrigation and drainage. In Vlotman, W. F. (Ed.) 5th International drainage workshop: Subsurface Drainage on Problematic Irrigated Soils - Sustainability and Cost Effectiveness, Lahore, 8-15 February 1992. Vol. II. Lahore, Pakistan: International Waterlogging and Salinity Research Institute (IWASRI) pp.3-11;3-21.
(Location: IWMI-HQ Call no: 631.7.6.2 G000 VLO Record No: H010057)
4 Chandio, B. A.; Azam, M.; Khan, M. Z. I. 1993. Potential role of water users associations for better water management at the farm level: Synthesis of nine studies. In Government of Pakistan-USAID Irrigation Systems Management Research Project; IIMI, Proceedings: Irrigation Systems Management Research Symposium, Lahore, 11-13 April 1993. Vol.III. - Role of water users in irrigation management. pp.1-16.
Water user associations ; Water management ; On farm research ; Farmers' associations / Pakistan / Balochistan / Kech Valley / Swat Valley / Chitral / Sind / Punjab
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIMI Record No: H012891)
Considering that little monitoring of the performance of water users associations was conducted until 1986, nine studies to determine the success of water user organizations were recently conducted by social scientists and anthropologists of various universities in Pakistan under the Encouraging Water Users (EWU) sub-project. Based on the fact that the on-farm water management program was launched in the early seventies and that water users associations were not provided legal protection until 1981, the studies also searched for any institutional constraints limiting the viability of the associations. Out of nine studies, three were done in Balochistan to determine community impact and tribal affiliations on collective management of karezes and tubewells. Studies suggested that the tribal system could readily form into a water users association. The studies noted also that the tribal system was a more appropriate system for installation of tubewells than rehabilitation of karezes. Poverty emerged as a larger constraint against the success of water management programs. The study of socioeconomics and irrigation system in Swat indicated that the unplanned and disorganized irrigation system is prone to many problems whereas the study on irrigation and society in Chitral revealed that socially organized farmers could manage irrigation water effectively. Two studies in Sindh and one in Punjab reported that water users associations would not help improve irrigation efficiencies unless other considerations were brought under the domain of water users associations. In Barani areas of Punjab, research suggested that because the local Irrigation Department had shown little interest, water users associations were prime candidates to take responsibility of small dams.
5 Chandio, B. A.; Chandio, A. S.; Sheikh, A. M. 1993. Effect of drain positions and boundary conditions on seepage interception using galerkin finite element model. In Government of Pakistan-USAID Irrigation Systems Management Research Project; IIMI, Proceedings: Irrigation Systems Management Research Symposium, Lahore, 11-13 April 1993. Vol.IV. - Drainage and water table control. pp.27-60.
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIMI Record No: H012896)
Seepage losses from canals waste irrigation water and induce waterlogging in the adjoining areas. Suitable lining methods can be applied to minimize such losses or they can be intercepted through horizontal drains parallel to the unlined canals. In order to make a correct estimation for seepage flow to the interceptors, hydraulic properties of alluvium as well as the hydraulic differences between the canal and drain are to be determined accurately. This paper discusses the use of Galerkin Finite Element Model to simulate the time-invariant seepage flow from unlined canals to the intercepter drains under different boundary conditions and drain positions. The computer model is calibrated against interceptor drains which are laid along some parts of Jamrao and Amurji canals on the Sukkur Barrage Command area under the real drain discharge and constant head boundary conditions. Subsequently, computer model is run for different boundary conditions and drain positions to see interaction between seepage interception and the consequent watertable elevations. Results from computer runs indicate that effects of downstream boundaries are so significant that change in watertable travels all its way upto the toe of canal. Similarly when canal seepage is intercepted by more than one row of drains, watertable of the project is effectively controlled. Computer model also shows that interceptor drain placed at 15 m away from the toe of canal has a better watertable control than that placed at a distance of 65 or 115 meters. The effect of drain depth on watertable control does not differ unless seepage interception by drains is increased. The complicated interactive nature of various parameters strongly favors computer modelling to depict the effects of different parameters more accurately, however, boundaries positions should be carefully located so that the computer model is properly calibrated.
6 Chandio, B. A.. 1993. Irrigation management research agenda: View from PCRWR. In Government of Pakistan-USAID Irrigation Systems Management Research Project; IIMI, Proceedings: Irrigation Systems Management Research Symposium, Lahore, 11-13 April 1993. Vol.IX. - Symposium highlights and ISM research agenda for the future. pp.41-45.
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIMI Record No: H012922)
7 Chandio, B. A.; Azam, M.; Khan, M. Z. I. 1993. Potential role of water users associations for better water management at the farm level: Synthesis of nine studies. In IIMI. Pakistan; PCRWR, Irrigation Systems Management Research (ISM/R) Project. Final report: Encouraging water users associations. 14p.
Water user associations ; Water management ; Case studies ; Social aspects ; Economic aspects / Pakistan / Balochistan / Swat Valley / Chitral / Sind / Punjab
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIM Record No: H013273)
8 Chandio, B. A.; Yaseen, S. M.; Rao, M. I. 1995. Comparative suitability of drip irrigation over furrow irrigation. In Lamm, F. R. (Ed.), Microirrigation for a changing world: Conserving resources/preserving the environment: Proceedings of the Fifth International Microirrigation Congress, Hyatt Regency Orlando, Orlando, Florida, April 2-6, 1995. St. Joseph, MI, USA: ASAE. pp.526-531.
(Location: IWMI-HQ Call no: 631.7 G000 LAM Record No: H018899)
9 Chandio, B. A.. 1998. GIS and water resources management in Pakistan. In Morishita, H.; Piracha, A. L. (Eds.), Conference proceedings - GIS applications to Resource Management and Environmental Planning, Rawalpindi /Islamabad, Pakistan, 17-18 February, 1998. Islamabad, Pakistan: Pakistan Society of Geographic Information Systems (PSGIS) pp.87-95.
(Location: IWMI-HQ Call no: 006 G730 MOR Record No: H023675)
Powered by DB/Text WebPublisher, from
