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Article

Planning Strategy for the Reduction of Runoff Using Urban Green Space

by 1 and 2,3,*
1
Korea Institute of Civil Engineering and Building Technology, Gyeonggi-Do 10223, Korea
2
Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
3
Department of Landscape Architecture and Rural System Engineering, Seoul National University, Seoul 08826, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Jinhyung Chon
Sustainability 2021, 13(4), 2238; https://doi.org/10.3390/su13042238
Received: 19 January 2021 / Revised: 11 February 2021 / Accepted: 11 February 2021 / Published: 19 February 2021
Urban green space plays an important role in treating stormwater. In a highly dense urban environment, it is difficult to create large areas of green space. To utilize green space in urban areas effectively, locating an effective green space type is important. In this study, we examined the effect of green space on runoff reduction by comparing different green space setting scenarios. By changing the green space area ratio, green space structure, street tree type, and rainfall duration and amount, we compared the runoff rates. The results showed that the green space area ratio was more effective when more than 10% of the area was green space, and the runoff reduction rate was decreased more effectively when the tree canopy LAI (leaf area index) value increased from 2 to 2.5 than when the LAI value was higher. Green space was more effective at lower intensities of rainfall events. Different green space structures cause other effects on evaporation and soil infiltration. Each strategy needs to be implemented correctly for green infrastructure policy purposes. View Full-Text
Keywords: landscape planning; green infrastructure; stormwater treatment; spatial modeling; street tree; LAI landscape planning; green infrastructure; stormwater treatment; spatial modeling; street tree; LAI
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MDPI and ACS Style

Yang, B.; Lee, D.K. Planning Strategy for the Reduction of Runoff Using Urban Green Space. Sustainability 2021, 13, 2238. https://doi.org/10.3390/su13042238

AMA Style

Yang B, Lee DK. Planning Strategy for the Reduction of Runoff Using Urban Green Space. Sustainability. 2021; 13(4):2238. https://doi.org/10.3390/su13042238

Chicago/Turabian Style

Yang, Byungsun, and Dong K. Lee. 2021. "Planning Strategy for the Reduction of Runoff Using Urban Green Space" Sustainability 13, no. 4: 2238. https://doi.org/10.3390/su13042238

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