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The Analysis of Instantaneous $CO_2$ Uptake and Evapotranspiration of Herbaceous Plants for Artificial Roof Greening  

Ahn, Geun-Young (College of Natural Science, Seoul Women's University)
Han, Seung-Won (National Institute of Horticultural & Herbal Science)
Lee, Eun-Heui (Division of Environmental & Life Science, Seoul Women's University)
Publication Information
Korean Journal of Environment and Ecology / v.25, no.1, 2011 , pp. 91-101 More about this Journal
Abstract
The purpose of this study is to demonstrate the positive effects of artificial ground greening on the reduction of carbon dioxide ($CO_2$) which can help improve ecological functions in cities and mitigation of climate change, through quantifying $CO_2$ uptake and evapotranspiration by the process of photosynthesis of some plants. Experiment of $CO_2$ uptake and evapotranspiration was conducted by measurement of $CO_2$ exchange rate using the infrared gas analyzer, for 7 month, growing season from May to November 2009, 2 times a month. The result was as follows; The $CO_2$ uptake quantity per $cm^2$ of Chrysanthemum zawadskii was the highest rate at $21.47{\times}10^{-6}g/cm^2/s$ and Poa pratensis was $16.20g{\times}10^{-6}g/cm^2/s$. The stronger was light of intensity, the higher were $CO_2$ uptake rate of most plants. In quantity of evapotranspiration, Poa pratensis was the highest rate at $8.75{\times}10^{-5}g/cm^2/s$ and Aquilegia buergariana was $8.66{\times}10^{-5}g/cm^2/s$. From this study, it is confirmed that artificial ground greening has capacity of absorption $CO_2$ and effects on improving urban microclimate.
Keywords
GREEN ROOF; URBAN MICRO-CLIMATE; ${CO_2}$REDUCTION; HEAT ISLAND EFFECTS;
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Times Cited By KSCI : 5  (Citation Analysis)
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