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KMID : 1024520110200111457
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Journal of the Environmental Sciences
2011 Volume.20 No. 11 p.1457 ~ p.1464
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Analysis of Flow Duration Based on SWAT-K Simulation for Construction of Natural Riparian
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Kim Nam-Won
Lee Jeong-Woo
Chung Il-Moon
Kim Ji-Tae
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Abstract
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In this study, the method of estimating hydrologic information (water depth, submerged period etc.) on the proper selection of construction point and scale as well as vegetation type suggested for the design of natural riparian rehabilitation structure. Long-term comprehensive watershed model SWAT-K(Korea) was applied to this purpose. Flow duration analysis was conducted to analyze the hydrologic characteristics of Pyungchang watershed at which the ’bangtul’ construction method was tested. For this purpose 20 years (1989-2008) rainfall runoff analysis was carried out. Based on the simulated daily streamflow data, flow duration curve was made to analyze the flow characteristics, and the water depth hydrograph was made to analyze the water depth distribution at the cross section. Finally, the information for the selection of proper vegetation according to the submerged period is suggested.
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KEYWORD
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SWAT-K, Natural riparian rehabilitation, Flow duration analysis, Vegetation
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