DOI QR코드

DOI QR Code

오목형 옥상녹화의 수자원확보효과와 영향인자

Water conservation effect of concave greenroof system and its influential factors

  • 백소영 (서울대학교 건설환경공학부) ;
  • 한무영 (서울대학교 건설환경공학부)
  • Baek, So-Young (Department of Civil and Environmental Engineering, Seoul National University) ;
  • Han, Moo-Young (Department of Civil and Environmental Engineering, Seoul National University)
  • 투고 : 2014.10.15
  • 심사 : 2015.04.14
  • 발행 : 2015.04.15

초록

Green roofs are gaining much interest in many cities around the world due to its multi-purpose effects of water conservation, flood mitigation and aesthetic benefits. However it may cause additional water demand to maintain green plants, which may intensify the current and future water shortage problems. While ordinary concrete roofs and normal green roof drains off rain water, concave green roof system can retain rain water because of its water holding capability. In this study, the water conservation effect of concave green roof was compared to normal roof on #35 building in Seoul National University, Seoul, Korea. For seven rainfall events the amount of stored rainwater and runoff were measured and proved water conservation effect of the concave green roof system. The concave green roof system of which area is 140m2 showed effect of water conservation from 1.8ton to 7.2ton and the most influence factors on water conservation in green roof are rainfall and antecedent day. If this concave green roof is applied to many buildings in the cities, it is expected as a way to water conservation through rainfall storage.

키워드

참고문헌

  1. Virginia S, Gianni V, Hartini K., (2010). The hydrological performance of a green roof test bed under UK climatic conditions. Journal of Hydrology 414-415, 148-161.
  2. Stovin, V., Dunett, N., Hallam, A., (2007). Green roofs-getting sustainable drainage off the ground. In: 6th International Conference of Sustainable Technologies and Strategies in Urban Water Management (Novatech 2007), Lyon, France, 11e18.
  3. Deborah A. Beck, Gwynn R. Johnson, Graig A. Spolek.,(2011). Amending greenroof soil with biochar to affect runoff water quantity and quality. Environmental Pollution 159, 2111-2118. https://doi.org/10.1016/j.envpol.2011.01.022
  4. Teemusk, A.,Mander,U.,(2007). Rainwater runoff quantity and quality performance from a greenroof: the effects of short-term events. Ecological Engineering 30, 271-277. https://doi.org/10.1016/j.ecoleng.2007.01.009
  5. Lee, J., Moon, H., Kim, T., Kim, H., Han, M. (2013). Quantitative analysis on the urban flood mitigation effect by the extensive green roof system. Environmental Pollution 181, 257-261. https://doi.org/10.1016/j.envpol.2013.06.039
  6. Ayako, N., Nigel, D. (2011). Amount of water runoff from different vegetation types on extensive green roofs: Effects of plant species, diversity and plant structure. Land scape and urban planning 104, 3-4.
  7. Han, M., (2014) Concave Green Roof as Water-Food-Energy Nexus. In: National ENERGY GLOBE Award Republic of Korea 2014, http://www.energyglobe.info/southkorea2014?cl.

피인용 문헌

  1. Field evaluation of the fertilizing potential of biologically treated sanitation products vol.650, pp.1, 2015, https://doi.org/10.1016/j.scitotenv.2018.09.009