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http://dx.doi.org/10.3741/JKWRA.2022.55.10.749

A study on the selection of priority management watershed for the restoration of water cycle  

Kim, Jaemoon (Green Land and Water Management Research Institute, Pusan National University)
Baek, Jongseok (Advanced Infrastructure Department, Korea Institute of Hydrological Survey)
Park, Jaerock (Green Land and Water Management Research Institute, Pusan National University)
Park, Byungwoo (K-water Education Dispatch)
Shin, Hyunsuk (School of Urban, Architecture and Civil Engineering, Pusan National University)
Publication Information
Journal of Korea Water Resources Association / v.55, no.10, 2022 , pp. 749-759 More about this Journal
Abstract
The paradigm of water cycle management in the watershed is changing due to the increase in abnormal climate phenomena caused by climate change and the increase in impervious area due to urbanization. Research is continuously underway based on Low Impact Development technology that can suppress water cycle distortion. In this study, factors that can reflect water cycle distortion were selected before applying LID, and the PSR index for each 148 watershed was calculated for the the Nakdonggang River basin. As of 1975, the PSR index is calculated by calculating the pressure index P, which represents the rate of change in impervious surface area to 2019, the phenomenon index S, which represents the rate of change in water cycle for each subwatershed, and the Low Impact Development area countermeasure index R. The lower PSR index value, the higher the priority management watershed, and the water cycle recovery priority management watershed was calculated in the order of 1, 2, 87, 90, 91, and 147. It is expected that the efficient application of low-impact development factors in accordance with the order of priority management of water cycle by subwatershed in the large area will contribute to the recovery of water cycle distortion.
Keywords
Water cycle; Water cycle restoration; PSR framework; HSPF;
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Times Cited By KSCI : 2  (Citation Analysis)
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