Abstract
In this study both data of land use and land cover were compared for selected period of time it is obvious that urban area is significantly increased in Saline River watershed, Arkansas, USA. For hydrologic studies and analysis WMS 8.1 program was used to delineate the watershed and analysis of other hydrologic processes. For further analysis, HEC-HMS was used to analyze the results of hydrographs of peak flows. Results show there is impact to hydrologic processes due to urbanization.
Highlights
Population of the Earth is significantly increasing with a shift of 60% would live in urban areas by 2030 [1, 2]
A watershed model is used as a tool to educate people about the changes of their watershed, consequences of urbanization and their security associated with flood generated by rising of peak flows [5, 6, 16]
The curve numbers for each subbasin were calculated from digital soil and land use data using WMS 8.1 [11, 12]
Summary
Population of the Earth is significantly increasing with a shift of 60% would live in urban areas by 2030 [1, 2]. Urbanization along with land use and land changes has an impact to natural ecosystems [2,3,4]. A watershed model is used as a tool to educate people about the changes of their watershed, consequences of urbanization and their security associated with flood generated by rising of peak flows [5, 6, 16]. Our analysis of the watershed uses the curve number method to calculate surface runoff volumes and peak flows.
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