Impact of urbanization on inflows and sedimentation load in Rawal Lake of Pakistan

The presence of water for the livelihood of human beings is inevitable. this study was carried out to perceive the impact of ever increasing urbanization in the catchment area of rawal lake on inflows of water and sedimentation. rawal lake is constructed on korang river and supplies water for domestic use to rawalpindi city and cantonment area. the results argue that the population in the last eleven years has increased up to 85% at a growth rate of 5.7%,while the built up land has increased 9%. on the other hand area under forest area has been decreased up to 10%. as a result of increase in urbanization inflows to the lake have decreased even though there is no major change in rainfall trend and contributed to the amount of suspended sediment in the inflows. the suspended sediment load was found to be varies from 16.45 tons/day to 1045 tones/day during low to high inflow season. © 2016,university of agriculture. all rights reserved.