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http://dx.doi.org/10.5762/KAIS.2019.20.2.434

An Analysis of the Outflow reduction effect of Bio-retention in Small watershed during Short-term rainfall  

Cheon, Jong-hyeon (Department of Civil and Environmental Engineering, Pusan National University)
Kim, Jae-moon (Department of Civil and Environmental Engineering, Pusan National University)
Jang, Young-su (Department of Civil and Environmental Engineering, Pusan National University)
Shin, Hyun-suk (Department of Civil and Environmental Engineering, Pusan National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.2, 2019 , pp. 434-442 More about this Journal
Abstract
Low Impact Development(LID) techniques has been attracting attention as a countermeasure to solve frequent flood damage in urban areas. LID is a techniques for returning to the natural hydrological cycle system by infiltrating the runoff from the impervious surface into the soil. The Bio-retention, one of the LID element technology has outflow reduction effect by reserving and infiltrating storm water runoff from watersheds. Recently, a number of studies have been carried out as interest in the reduction of storm water runoff and non-point pollutants in Bio-retention has increased. However, quantitative analysis on the outflow reduction of Bio-retention applied to small watershed is insufficient. In this study, Bio-retention model was constructed in a small watershed using K-LIDM which is capable of hydrologic analysis. When the storage capacity was increased or dividing the Bio-retention and watershed, the outflow reduction effect was 20% according to the storage capacity increase and 5~15% in the distributed Bio-retention system. The results of this analysis will be used as the basic data of future Bio-retention research related to watershed characteristics, vegetation type and soil condition.
Keywords
Low Impact Development(LID); Bio-retention; Outflow reduction; Storage capacity; K-LIDM; Distributed Bio-retention System;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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