A field study to evaluate the runoff quantity and stormwater retention of a typical extensive green roof in Bahçeköy, Istanbul

• Autorzy: Ekşi M.

Identyfikatory

DOI

10.5277/epe130407

• Języki publikacji: EN

Abstrakty

EN

mpervious surfaces in urban areas are increasing as a result of urbanization and development. Roof surfaces constitute a large portion of impervious cover in cities. Within the scope of the sustainability principle and urban policies in the world, water retention benefits of the green roofs to the urban environment have been assessed with various academic studies. In recent years, green roof systems are being used to reduce stormwater runoff in urban areas. In the research, main aim was to determine the rainfall-runoff relationship of a typical extensive green roof with 50 mm thick substrate and to perform comparisons with an unvegetated roof based on field measurements. Hydrological performance of green roofs such as water retention and runoff delay were investigated in local climate of Bahcekoy, Istanbul. Through comparative field measurements at Istanbul University Faculty of Forestry Landscape Architecture Department, Green Roof Research Station (IUGRRS), stormwater retention performance of green roofs was investigated in terms of sustainability. From the derived data, moisture changes in the substrate, outdoor environment interactions and the runoff characteristics of the green roofs were evaluated. According to rainfall characteristics, a typical extensive green roof system delayed the runoff between 1 to 23 h in several rain events and prevented the runoff between 12.8% and 100%. Overall, green roof systems may provide an alternative and sustainable solution for the impervious roof surfaces in cities.

Słowa kluczowe

EN

roofs; green roofs; landscape architecture; rainfall; stormwater retention; stormwater runoff

PL

dachy; zielone dachy; architektura krajobrazu; retencja wód burzowych; obszar miejski; odpływ wód deszczowych

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2013
• Tom: Vol. 39, nr 4
• Strony: 79--89
• Opis fizyczny: Bibliogr. 13 poz., tab., rys.

Twórcy

autor

Ekşi M.

• Istanbul University Faculty of Forestry Landscape Architecture Department, Bahçeköy/Sariyer 34473, Istanbul, Turkey

Bibliografia

• [1] Millennium Ecosystem Assessment, Ecosystems and Human Well-being Current State and Trends, United Nations, Island Press, Washington, DC, 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., 2005, 34 (3), 1036.
• [3] TEEMUSK A., MANDER U., Rainwater runoff quantity and quality performance from a green roof. The effects of short-term events, Ecol. Eng., 2007, 30, 271.
• [4] VILLARREAL E.L., BENGTSSON L., Response of a Sedum green-roof to individual rain events, Ecol. Eng., 2005, 25, 1.
• [5] U.S. Environmental Protection Agency, Report on protecting water quality from urban runoff, Office of Research and Development, National Risk Management Research Laboratory, Water Supply and Water Resources Division Cincinnati, OH, 2003, AEPA 841-F-03-003.
• [6] DUNNETT N., NAGASE A., BOOTH R., GRIME P., Influence of vegetation composition on runoff in two simulated green roof experiments, Urban Ecosyst., 2008, 11, 385.
• [7] MENTENS J., RAES D., HERMY M., Green roofs as a tool for solving the rainwater runoff problem in the urbanized 21st century, Landscape Urban Plan., 2006, 77, 217.
• [8] GREGOIRE B.G., CLAUSEN J.C., Effect of a modular extensive green roof on stormwater runoff and water quality, Ecol. Eng., 2011, 37, 963.
• [9] BERGHAGE R.D., BEATTIE D., JARRETT A.R., THURING C., RAZAEI F., O’CONNOR T.P., Green roofs for stormwater runoff control, National Risk Management Research Laboratory Office of Research and Development U.S. Environmental Protection Agency Cincinnati, OH, 2009, 9-26. EPA/600/R- 09/026, .
• [10] HILTEN R.N., LAWRENCE T.M., TOLLNER E.W., Modeling stormwater runoff from green roofs with HYDRUS-1D, J. Hydrol., 2008, 358, 288.
• [11] CARTER T.L., RASMUSSEN T.C., Hydrologic behavior of vegetated roofs, JAWRA, 2007, 42 (5),1261.
• [12] ROWE D.B., RUGH C.L., VANWOERT N.D., MONTERUSSO M.A., RUSSELL D.K., Green roof slope, substrate depth, and vegetation influence runoff, Proceedings of 1st North American Green Roof Conference: Greening Rooftops for Sustainable Communities Chicago, The Cardinal Group, Toronto, 2003, 354–362.
• [13] EZBER Y., SEN O.L., KINDAP T., KARACA M., Climatic effects of urbanization in Istanbul. A statistical and modeling analysis, Int. J. Climatol., 2007, 27, 667–679.