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http://dx.doi.org/10.33768/ksue.2018.18.4.419

Long-term Estimation and Mitigation of Urban Development Impact on Watershed Hydrology  

Jeon, Ji-Hong (Department of Environmental Engineering, Andong National University)
Jang, Joo Bok (Korea Quality Institute of Construction Industry)
Kim, Tae-Dong (Department of Environmental Engineering, Andong National University)
Choi, Donghyuk (Department of Environmental Engineering, Andong National University)
Publication Information
Journal of the Korean Society of Urban Environment / v.18, no.4, 2018 , pp. 419-428 More about this Journal
Abstract
This study is aimed at estimating and mitigating the impact of urban development on watershed hydrology for new town experienced with dramatical change of land use from rural to urban. The climate change scenario, representative concentration pathway (RCP), revealed direct response of runoff depth to precipitation, which increased until year 2100. The types of areas for urban use in addition to climate change affected the efficiencies of bioretention, applied as a low impact development (LID). Combining different areas for urban use suggested that a possible approach to mitigate the urban development impact on watershed hydrology by supplementing captured rainfall potential from area to area and attenuating peak discharge and retarding its time of concentration.
Keywords
Low impact development (LID); Bioretention efficiency; Runoff depth; Watershed hydrology;
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