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Journal of Applied Sciences
  Year: 2009 | Volume: 9 | Issue: 20 | Page No.: 3723-3730
DOI: 10.3923/jas.2009.3723.3730
 
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The Influence of Anthropogenic Activities on Intensifying Runoff Generation and Flood Hazard in Kasilian Watershed

Gholami V., Jokar E., Azodi M., Zabardast H.A. and M. Bashirgonbad

Abstract:
Destroy of forest lands and changing them into agricultural and range lands has been followed by the development of human societies and increase of man’s activities in the Northern part of Iran. These land use changes and also the development of road network and residential areas have caused to increase runoff generation and flood hazard. We have observed the development of residential areas, road network and destroy of forest lands in Kasilian watershed in the recent several decades. Kasilian watershed is located in the Northern part of Iran. The objective of this study has been the quantitative investigation of the effects of man’s activities on the destroy of forest lands, land use changes, impervious surface development and finally the influence of the set of these changes on runoff generation and flood hazard in Kasilian watershed. The study of land use changes and residential area development has been carried out by using aerial photos, topographic maps 1:25000, land use maps and satellite images. Also a runoff-rainfall model has been presented by using GIS (HEC-GeoHMS extension) and hydrologic model (HEC-HMS). We used the SCS method for presenting the hydrologic model. It is noted that the optimized model is evaluated by the other six events of flood. Then land use changes and also the development of the residential areas and roads have been included in the evaluated hydrologic model and their effects on intensifying runoff generation and flood hazard have been investigated quantitatively during the recent forty years.
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How to cite this article:

Gholami V., Jokar E., Azodi M., Zabardast H.A. and M. Bashirgonbad, 2009. The Influence of Anthropogenic Activities on Intensifying Runoff Generation and Flood Hazard in Kasilian Watershed. Journal of Applied Sciences, 9: 3723-3730.

DOI: 10.3923/jas.2009.3723.3730

URL: https://scialert.net/abstract/?doi=jas.2009.3723.3730

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