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Impact of Urbanization on Watershed Hydrology and Hydro-Geology

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Watershed ManWatershed Management to Meet Water Quality Standards and TMDLS (Total Maximum Daily Load) Proceedings of the 10-14 March 2007, San Antonio, Texas  701P0207.(doi:10.13031/2013.22421)
Authors:   Deepak Khare, Mahesh Kumar Jat, P K Garg
Keywords:   Urbanisation, Runoff, Groundwater, Recharge, Remote Sensing, GIS

Increased impervious surface area is a consequence of urbanization, which exert multiple pressures on the hydrologic cycle. Specifically, increase in impervious surface result in increased hydraulic efficiency in urban catchments, and can substantially decrease capacity for a given landscape or region to infiltrate precipitation, with a concomitant increase in the production of runoff, shorter times of concentration or lag times and decreased groundwater recharge. Urbanization also has indirect effects on downstream flooding and on aquatic ecosystems.

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