Effect of surface geometry and insolation on temperature profile of green roof in Saint-Petersburg environment
- 1 — Ph.D. associate professor Saint-Petersburg Mining University
- 2 — junior scientist V.L.Komarov Botanical Institute, Russian Ac.Sci.
Abstract
The paper addresses an issue of creating an environment favorable for the life in megacities by planting vegetation on the rooftops. It also provides information about rooftop greening practices adopted in other countries. The issues of ‘green roof’ building in climatic conditions of Saint Petersburg and roof vegetation impact on the urban ecosystem are examined. Vegetation composition quality- and quantity-wise has been proposed for the roof under research and a 3D model of this roof reflecting its geometric properties has been developed. A structure of roof covering and substrate qualitative composition is presented. An effect of rooftop geometry on the substrate temperature is explored. The annual substrate temperature and moisture content in different parts of the roof have been analyzed. Results of thermal imaging monitoring and insolation modelling for different parts of green roof surface are presented.
References
- Орлова О.Н. Виды очитковых (Сrassulaceae) для озеленения города Белгорода / О.Н.Орлова, О.А.Сорокопудова // Научные ведомости. Серия «Естественные науки». 2010. № 9 (80). Вып.11. C.45-48.
- Brenneisen S. Space for urban wildlife: designing green roofs as habitats in Switzerland // Urban Habitats. 2006. Vol.4. P.27-36.
- Dunnett N., Nagase A., Booth R., Grime P. Influence of vegetation composition on runoff in two simulated green roof experiments // Urban Ecosystems. 2008. Vol.11. P.385-398.
- Dunnett N., Nagase A., Both R., Grime P. Vegetation composition of green roofs and its influence on ruoff and biodiversity. Paper presented at the Third Annual Greening Rooftops for Sustainable Communities Conference, Awards and Trade Show. Washington, DC, 2005.
- Dvorak B., Volder A. Green roof vegetation for North American ecoregions: A literature review // Landscape and Urban Planning. 2010. № 96. P.197-213.
- Emilsson T. Vegetation development on extensive vegetated green roofs: Influence of substrate composition, establishment method and species mix // Ecological engineering. 2008. № 33. P.265-277.
- Getter K.L., Rowe D.B., Cregg B.M. Solar radiation intensity influences extensive green roof plant communities // Urban Forestry & Urban Greening. 2009. № 8. P.269-281.
- Kohler M. Long-term vegetation research on two extensive green roofs in Berlin // Urban Habitats. 2006. Vol.4. P.3-26.
- Maclor J., Lundholm J. Performance evaluation of native plants suited to extensive green roof condition in a maritime climate // Ecological Engineering .2011. Vol.37. P.407-417.
- Oberndorfer E., Lundholm J., Bass B., Coffman R.R., Doshi H., Dunnett N., Gaffin S., Kohler M, Liu K.K.Y., Rowe B. Green roofs as urban ecosystems:Ecological structures, functions, and services. 2007. BioScience 57. P.823-833.