JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Runoff Reduction Effect of Rainwater Retentive Green roof
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : KIEAE Journal
  • Volume 16, Issue 1,  2016, pp.67-71
  • Publisher : Korea Institute of Ecological Architecture and Environment
  • DOI : 10.12813/kieae.2016.16.1.067
 Title & Authors
Runoff Reduction Effect of Rainwater Retentive Green roof
Baek, So-Young; Kim, Hyun-Woo; Kim, Mi-Kyeong; Han, Moo-Young;
  PDF(new window)
 Abstract
Purpose: There is a growing interest in rainwater runoff reduction effect of green roof, as flooding caused by increasing impervious surface is becoming more and more frequent in urban areas. This study was conducted to prove runoff reduction and runoff delay effect of the retentive green roof and to investigate its influencing factors to the rainfall events that occurred in the summer of 2013. Method: The experiment intended to monitor the runoff quantity of the retentive green roof() and normal roof() in #35 building in Seoul National University, Seoul, Korea for 75 days in 2013. Result: On analysis of 9 rainfall events, it showed that the retentive green roof has 24.8~100% of runoff reduction ratio, 21.2~100% of peak flow reduction ratio, 0.5~3.75 hours of peak delay, and of retaining capacity in an area of . It shows different results depending on rainfall and antecedent dry days. The results show that runoff reduction effect is effective when the rainfall is less than 50 mm and antecedent dry day is longer than five days on average. By installing retentive green roofs on buildings, it can help mitigate urban floods and rehabilitate urban water cycle.
 Keywords
retentive green roof;Rainwater retention;Runoff reduction;Peak flow reduction;
 Language
Korean
 Cited by
 References
1.
Bengtsson, L., Grahn, L., Olsson, J. Hydrological function of a thin extensive green roof in southern Sweden. Nordic Hydrology, 36, 259-268, 2005

2.
VanWoert, N.D., Rowe, D.B., Andresen, J.A., Rugh, C.L., Fernandez, R.T., & Xiao, L. Green roof stormwater retention: effects of roof surface, slope, and media depth. J Environ Qual, 34(3), 1036-1044, 2005 crossref(new window)

3.
Mentens, J., Raes, D., Hermy, M. Green roofs as a tool for solving the rainwater runoff problem in the urbanized 21st century? Landscape and Urban Planning, 77(3), 217-226, 2006 crossref(new window)

4.
Stovin, V., Vesuviano, G., Kasmin, H. The hydrological performance of a green roof test bed under UK climatic conditions. Journal of Hydrology, 414-415, 148-161, 2012 crossref(new window)

5.
Roehr, D., Kong, Y. Runoff reduction effects of green roofs in Vancouver, BC, Kelowna, BC, and Shanghai, PR China. Canadian Water Resources Journal, 35(1), 53-68, 2010 crossref(new window)

6.
Lee, J., Moon, H., Kim, T., Han, M.. Quantitative analysis on the urban flood mitigation effect by the extensive green roof system. Environmental Pollution, 181, 257-261, 2013 crossref(new window)

7.
Krebs, G., Kuoppamai, K., Kokkonen, T., & Koivusalo, H. Simulation of green roof test bed runoff. Hydrological Processes, 2015

8.
Moran, A., Hunt, B., and Jennings, G. A North Carolina Field Study to Evaluate Greenroof Runoff Quantity, Runoff Quality, and Plant Growth. World Water & Environmental Resources Congress 2003: 1-10, 2004

9.
Kohler, M., Schmidt, M., Grimme, F.W., Laar, M.. & Gusmao, F. Urban water retention by greened roofs in temperate and tropical climate. in 38th International Federation of Landscape Architects World Congress, Singapore, 2001

10.
DeNardo, J., Jarrett, A., Manbeck, H., Beattie, D., and Berghage, R. Stormwater detention and retention abilities of green roofs. in World water and environmental resources congress, 2003

11.
Lee, J., Kim, B., Park, H., Jung, H., Yeom, K. A Simulation of Runoff by a greening roof for Rainfall Runoff Retardation, J. Korean Society of Water & Wastewater., 2006: 981-990, 2006

12.
Lee, E., Jang, H., Anh, G. Effects of Extensive Green Roof System on Rainwater Circulation. J. Korean Env. Res. Tech. 14(4), 81-88, 2011.

13.
Carter, T.L., Rasmussen, T.C. Hydrologic Behavior of Vegetated Roofs, Journal of the American Water Resources Association, 42(5), 1261-1274, 2006 crossref(new window)

14.
Simmons, M.T., Gardiner, B., Windhager, S., Tinsley, J. Green roofs are not created equal: the hydrologic and thermal performance of six different extensive green roofs and reflective and non-reflective roofs in a sub-tropical climate. Urban Ecosystems, 11(4), 339-348, 2008 crossref(new window)