Your search found 24 records
1 Ali, C. R.; Ashraf, M.; Trout, T.; Mohsin, W. A.; Ahmad, M.; Anwar, N. A.; Khan, M. U. 1978. Operational irrigation evaluations of three watercourse systems. Lahore, Pakistan: Pakistan Water & Power Development Authority. xi, 60p. (Pakistan Water and Power Development Authority publication no.1)
(Location: IWMI-HQ Call no: 631.7.8 G730 ALI Record No: H0351)
2 Clyma, W.; Ali, A.; Ashraf, M.. 1975. Irrigation practices and application efficiencies in Pakistan. Bhalwal, Pakistan: Directorate of Mona Reclamation Experimental Project. 33 p. (Water and Power Development Authority publication no. 36)
Irrigation efficiency ; Irrigation practices ; Water management ; Water supply ; Canals ; Tube wells / Pakistan
(Location: IWMI-HQ Call no: 631.7.6.2 G730 CLY Record No: H0598)
3 Ashraf, M.. 1978. Group owned private tubewells in Pakistan's Punjab. Paper presented at the Wheat Research and Production Seminar, Islamabad, Pakistan, 12-13 August 1978. 16p.
(Location: IWMI-HQ Call no: P 656 Record No: H01668)
4 Ali, A.; Clyma, W.; Ashraf, M.. 1975. Irrigation practices for traditional and precision leveled fields in Pakistan. Paper presented at the CENTO Panel Meeting on the Optimum Use of Water in Agriculture, Lyallpur, Pakistan, 3-5 March 1975. 30p.
(Location: IWMI-HQ Call no: P 158 Record No: H02252)
5 Clyma, W.; Ali, A.; Ashraf, M.. 1975. Watercourse losses. Paper presented at the CENTO Panel Meeting on the Optimum Use of Water in agriculture,Lyallpur, Pakistan, 3-5 March 1975. 30p.
(Location: IWMI-HQ Call no: P 160 Record No: H02285)
6 Ashraf, M. 1985. Water management research in Pakistan. Paper presented at the Workshop on Research Priorities for Irrigation Management in Asia, Sri Lanka 6-11 January 1985. 31p.
(Location: IWMI-HQ Call no: P 883 Record No: H04133)
7 Ashraf, M.; Balogun, P.; Jibrin, A. 1985. A case study of on-farm adaptive research in the Bida Agricultural Development Project-Nigeria. Ibadan, Nigeria: IITA. 29p. (IITA OFR bulletin no.1)
Agricultural development ; On farm research ; Development projects ; Crop enterprises ; Rice ; Farmers' attitudes / Nigeria
(Location: IWMI-HQ Call no: 631 G214 ASH Record No: H04269)
8 Ashraf, M.. 1987. Review of silt exclusion from irrigation canals. Unpublished report submitted in partial fulfillment of the requirements for the degree of Master of Science in Agricultural and Irrigation Engineering, Utah State University, Logan, Utah, USA. 102p.
Irrigation canals ; Sedimentation ; Control methods ; Irrigation engineering ; Silt ; Irrigation design / Pakistan
(Location: IWMI-HQ Call no: D 631.7.1 G730 ASH Record No: H014827)
9 Saeed, M. M.; Ashraf, M.; Asghar, M. N.; Bruen, M.; Shafique, M. S. 2002. Farmers' skimming well technologies: Practices, problems, perceptions and prospects. Lahore, Pakistan: International Water Management Institute (IWMI) vi, 46p. (IWMI Working Paper 040 / Pakistan Country Series No.11) [doi: https://doi.org/10.3910/2009.171]
Tube wells ; Technology ; Irrigation canals ; Water quality ; Salinity ; Crop production ; Pumping ; Manual pumps ; Discharges ; Participatory rural appraisal / Pakistan / Indus Basin / Sargodha District / Tehsil Bhalwal
(Location: IWMI-PAK Call no: IWMI 631.7.6.3 G000 SAE Record No: H029981)
(772 KB)
10 Saeed, M. M.; Ashraf, M.; Bruen, M. 2002. Diagnostic analysis of farmers’ skimming well technologies in the Indus Basin of Pakistan. Irrigation and Drainage Systems, 16(2):139-160.
Wells ; Technology ; Diagnostic analysis ; Aquifers ; Salinity ; Participatory rural appraisal ; Tube wells ; Water quality ; Pumping ; Groundwater irrigation ; River basins / Pakistan / Indus Basin
(Location: IWMI-HQ Call no: PER Record No: H030556)
11 Saeed, M. M.; Ashraf, M.; Asghar, M. N. 2003. Hydraulic and hydro-salinity behavior of skimming wells under different pumping regimes. Agricultural Water Management, 61(3):163-177.
(Location: IWMI-HQ Call no: PER Record No: H032298)
12 Asghar, Muhammad Nadeem; Ashraf, M.; Yasin, M.; Ahmad, S. 2004. Root zone salinity management using fractional skimming wells with pressurized Irrigation. Volume VI - Irrigation scheduling. Lahore, Pakistan: International Water Management Institute (IWMI). 57p.
Irrigation scheduling ; Groundwater ; Aquifers ; Wells ; Soil salinity ; Sodic soils ; Water stress ; Soil texture ; Water table ; Salinity control ; Water quality ; Water balance ; Performance evaluation ; Crop production ; Environmental effects / Pakistan / Mona / Chaj Doab
(Location: IWMI-HQ Call no: IWMI 631.7.6.3 G730 ASG Record No: H036176)
(1.73 MB)
13 Ashraf, M.; Idris, M. 2004. Farmers’ groundwater skimming practices. In Asghar, Muhammad Nadeem; Shafique, Muhammad Siddique; Ahmad, S.; Kahlown, M. A. (Eds.). Root zone salinity management using fractional skimming wells with pressurized Irrigation: Proceedings of the Year-End Seminar 2000. Lahore, Pakistan: International Water Management Institute (IWMI). pp.12-21.
(Location: IWMI-HQ Call no: IWMI 631.7.6.3 G730 ASG Record No: H036178)
(0.79 MB)
14 Saeed, Muhammad Mazhar; Ashraf, M.; Asghar, Muhammad Nadeem; Shafique, Muhammad Siddique. 2004. Diagnostic analysis of farmers’ skimming well technologies in the Indus Basin. In Asghar, Muhammad Nadeem; Shafique, Muhammad Siddique; Yasin, Muhammad ; Alam, Muhammad Mehboob (Eds.), Root zone salinity management using fractional skimming wells with pressurized Irrigation: Proceedings of the Year-End Seminar 2001. Lahore, Pakistan: IWMI. pp.60-79.
Groundwater ; Supplementary irrigation ; Irrigation canals ; Tube wells ; Water quality / Pakistan / Indus
(Location: IWMI-HQ Call no: IWMI 631.7.6.3 G730 ASG Record No: H036188)
(1.21 MB)
15 Ashraf, M.; Asghar, Muhammad Nadeem; Shafique, Muhammad Siddique; Saeed, M. M. 2004. Irrigation scheduling with skimmed groundwater to manage root zone salinity. In Asghar, Muhammad Nadeem; Shafique, Muhammad Siddique; Yasin, Muhammad ; Alam, Muhammad Mehboob (Eds.), Root zone salinity management using fractional skimming wells with pressurized Irrigation: Proceedings of the Year-End Seminar 2001. Lahore, Pakistan: IWMI. pp.80-104.
Irrigation scheduling ; Groundwater ; Tube wells ; Furrow irrigation ; Evaporation ; Soil moisture ; Salinity control ; Maize ; Water use efficiency ; Crop production ; Water conservation / Pakistan
(Location: IWMI-HQ Call no: IWMI 631.7.6.3 G730 ASG Record No: H036189)
(1.46 MB)
16 Saeed, M. M.; Ashraf, M.. 2005. Feasible design and operational guidelines for skimming wells in the Indus basin, Pakistan. Agricultural Water Management, 74(3):165-188.
(Location: IWMI-HQ Call no: PER Record No: H037018)
17 Kahlown, M. A.; Ashraf, M.; Zia-ul-Haq. 2005. Effect of shallow groundwater table on crop water requirements and crop yields. Agricultural Water Management, 76(1):24-35.
Groundwater ; Crop yield ; Water requirements ; Water table ; Salinity ; Wheat ; Sugarcane ; Maize ; Sorghum ; Sunflowers ; Evapotranspiration / Pakistan / Lahore
(Location: IWMI-HQ Call no: PER Record No: H037131)
18 Tahir, A. A.; Chevallier, P.; Arnaud, Y.; Ashraf, M.; Bhatti, Muhammad Tousif. 2015. Snow cover trend and hydrological characteristics of the Astore River basin (Western Himalayas) and its comparison to the Hunza basin (Karakoram region) Science of the Total Environment, 505:748-761. [doi: https://doi.org/10.1016/j.scitotenv.2014.10.065]
Snow cover ; Glaciers ; Snowmelt ; Hydrological regime ; River basins ; Climatic data ; Meteorological stations ; Satellite observation ; Water resources ; Catchment areas / Pakistan / India / Western Himalayas / Karakoram Region / Indus River Basin / Astore River Basin / Hunza Basin
(Location: IWMI HQ Call no: e-copy only Record No: H046709)
(4.13 MB)
A large proportion of Pakistan's irrigation water supply is taken from the Upper Indus River Basin (UIB) in the Himalaya–Karakoram–Hindukush range. More than half of the annual flow in the UIB is contributed by five of its snow and glacier-fed sub-basins including the Astore (Western Himalaya — south latitude of the UIB) and Hunza (Central Karakoram — north latitude of the UIB) River basins. Studying the snow cover, its spatiotemporal change and the hydrological response of these sub-basins is important so as to better managewater resources. This paper compares new data from the Astore River basin (mean catchment elevation, 4100 m above sea level; m asl afterwards), obtained using MODIS satellite snow cover images, with data from a previouslystudied high-altitude basin, the Hunza (mean catchment elevation, 4650 m asl). The hydrological regime of this sub-catchment was analyzed using the hydrological and climate data available at different altitudes from the basin area. The results suggest that the UIB is a region undergoing a stable or slightly increasing trend of snow cover in the southern (Western Himalayas) and northern (Central Karakoram) parts. Discharge from the UIB is a combination of snow and glacier melt with rainfall-runoff at southern part, but snow and glacier melt are dominant at the northern part of the catchment. Similar snow cover trends (stable or slightly increasing) but different river flow trends (increasing in Astore and decreasing in Hunza) suggest a sub-catchment level study of the UIB to understand thoroughly its hydrological behavior for better flood forecasting and water resources management.
19 Ashraf, M.; Bhatti, Muhammad Tousif; Shakir, A. S.; Tahir, A. A.; Ahmad. A. 2015. Sediment control interventions and river flow dynamics: impact on sediment entry into the large canals. Environmental Earth Sciences, 74(7):5465-5474. [doi: https://doi.org/10.1007/s12665-015-4604-3]
Sedimentation ; Rivers ; Stream flow ; Monsoon climate ; Flooding ; Canal irrigation ; Water yield ; Flow discharge / India / Pakistan / Chenab River / Marala Ravi Link Canal / Upper Chenab Canal
(Location: IWMI HQ Call no: e-copy only Record No: H047101)
(0.77 MB)
At Marala barrage, two canals, i.e. Marala Ravi Link Canal (MRLC) and Upper Chenab Canal (UCC) off-take from left side of the River Chenab. MRLC has a very old history of experiencing sedimentation issues. Several attempts have been made to counterfoil or minimize this problem in the recent past. Two remarkable measures are the remodeling of MRLC in 2000-2001 (in-tervention-1) and the shifting of the confluence point of a heavily sediment-laden upstream tributary of the Chenab River by construction of a spur dike in 2004 (intervention-2). This paper investigates the effectiveness of these structural interventions as sedimentation control measures. The baseline period is selected from 1997 to 2000 and the impact is analyzed for two post-intervention time steps, i.e. evaluation period-1 ranging from 2001 to 2004 and evaluation period-2 from 2005 to 2011. Results obtained from double mass analysis revealed that sediment load increased by 33 and 8 % due to intervention-1, while decreased by 12 and 22 % due to intervention-2 in MRLC and UCC, respectively. The results suggest that monsoon floods are mainly responsible for sediment loading in the canals (66 % for UCC and 73 % for MRLC), supported by the finding that effective discharge (1900 m3 s-1) is almost twice the mean annual river discharge. The discharge classes between 900 and 2900 m3 s- 1 are mainly responsible for major proportion (89 % in MRLC and 86 % in UCC) of the total sediment load over the 15-year study period. The intervention-1 could not minimize the sediment entry into the canals; rather it aggravated the situation. The intervention-2, however, proved a useful structural measure in this regard.
20 Ashraf, M.; Bhatti, Muhammad Tousif; Shakir, A. S. 2016. River bank erosion and channel evolution in sand-bed braided reach of River Chenab: role of floods during different flow regimes. Arabian Journal of Geosciences, 9(2):1-10. [doi: https://doi.org/10.1007/s12517-015-2114-y]
Riverbank protection ; Erosion control ; Flooding ; Landsat ; Imagery ; Sand ; Open channels ; Monsoon climate ; Flow discharge ; Stream flow ; Environmental protection / Pakistan / Chenab River
(Location: IWMI HQ Call no: e-copy only Record No: H047488)
(5.03 MB)
Braided reaches of large rivers in alluvial plains show major morphological changes, particularly the external bank erosion, due to the flood events. This paper highlights the bank erosion and channel evolution induced by eleven different flood events in a 7-km long reach of the River Chenab, Pakistan. The impact of floods on river bank erosion and channel evolution is analyzed under low and high flow conditions. Flood-induced changes, for river’s external banks and channel evolution, were assessed by processing Landsat ETM+ images in ArcGIS tool, and their inter-relationship is evaluated through regression analysis. The results revealed that the major morphological changes were triggered by the flood events occurred during the high flow or Monsoon season (July–September), whereas the flood events of similar magnitude occurring during low flow season (October–March) did not induce such changes. Mostly, the erosion remained limited to the middle part of the reach,where the branch channel flows along the bank. The average annual bank erosion rates are much higher as compared with a global scale. Data analysis showed a strong correlation between the mean high flows and total bank erosion indicating that Monsoon seasonal flows and floods are responsible for bank erosion. The present study further identifies the river bank locations highly susceptible to erosion by developing the correlation between bank erosion and branch channel progression. Strong correlation for bank erosion could be established with the shift of branch channels position flowing along the banks in braided reaches of sand bed rivers. However, the presence of sand bars along the river banks resulted in reduced erosion that weakens this relationship. The findings of the present study can help develop better understanding about the bank erosion process and constitute a key element to inform and improve river bank management.
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