Volume 18, Issue 67 (Spring 2014)                   jwss 2014, 18(67): 199-215 | Back to browse issues page

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Y. Nabipoor, M. Vafakhah, H. R. Moradi. Evaluation of Watershed Management Practices (WMPs) Effect on Flood Characteristics. jwss 2014; 18 (67) :199-215
URL: http://jstnar.iut.ac.ir/article-1-2081-en.html
, vafakhah@modares.ac.ir
Abstract:   (15838 Views)
The occurrence trend of floods in recent years shows that the most of Iran regions located in attacks of destructive floods and loss of life and property of flood damages is increasing. Watershed management practices (WMPs) are one of the superior and appropriate solutions for flood hazards mitigation. The impact of WMPs can be investigated using different approaches. In this study, the direct impact of WMPs was investigated using quantitative evaluation of flood characteristics for two periods, pre and post periods of measures implementation. Therefore, daily hydrograph of investigated periods and the results of flood analyses including number of floods occurrence, flood frequency percent in the different months and seasons were determined in Hajighoshan and Tamar hydrometery stations. Also, the mean continuing, rise and subsidence time of floods and maximum peak discharge of observed floods were investigated. The research results showed that the occurrence trend of floods had relatively increased. The number of floods has increased in post periods of measures implementation in two hydrometery stations, while WMPs effect on all flood characteristics were positive, as the continuing time of floods has increased with 0.5%, rise and subsidence time of floods and maximum peak discharge of floods have decreased with 7.9%, 21.98% and 70%, respectively. Totally, if WMPs volume pre watershed area isn't low, WMPs effect on flood characteristics will be positive.
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Type of Study: Research | Subject: Ggeneral
Received: 2012/04/4 | Accepted: 2012/11/21 | Published: 2014/06/7

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