Hydrologic impact on change in land use/land cover in an urbanizing catchment of Mumbai: a case study

摘要: In this paper, an integrated model has been applied to study the hydrologic impact of changing land use in Poisar watershed Mumbai, India. study, overland flow modelled using 1-D mass balance approach, infiltration Green-Ampt equations and channel diffusion wave equation. The use/land cover maps from satellite imageries for 1972, 1992 2009 indicated that impervious area increased by 116% between 1972 2009. studies few rainfall events showed increase peak discharge 7 30%, decrease time 0 4% surface runoff 14 48%, with return periods 25, 50 100 years 6 9%; reduced 2% while 11 16%. results indicate urbanization...