| Summary: | 碩士 === 國立臺灣大學 === 園藝暨景觀學系 === 102 === Due to urban sprawl, the green land is shrinking. The importance of urban greenery is increasingly being recognized by people in the regeneration of our cities. Vertical greening is thought as an effective way to increase urban green land, Vertical greening not only increase urban green land but also can improve beautification, reduce air pollution, sound insulation and especially mitigation of urban heat island effect. In recent years, under the vertical greening technology updates. The vertical greening planting more and more refined and thus enhance the urban landscape, estimate a value increase interval for a property. Vertical greening was under consideration until the concern of carbon reduction issue. Cooling efficiency has become an important topic of vertical greening, and have excellent shape configuration is the development trend of green wall. The aims of this study were to discuss the effects of different composition on green wall cooling and to examine different cooling effects of planting composition. The platform of National Taiwan University were chosen as the study site. Six kinds of configurations green wall were chosen as study, about geometry, geometry with overhang plant, curve, curve with overhang plant, no pattern, and special shape. The surface temperature and air temperature were recorded the average every 5 minutes. The daily data from 11 am to 12 am between April and May, 2014 were used. Results suggested that there were significantly different between the cooling effects of different composition, and the special shape composition had a best cooling effect. The effects of plant characteristics on cooling effect of the surface temperature and the air temperature were examined. Results suggested that increase covered area of red leaves and overhang, and less dark green leafy coverage area had positive surface temperature cooling effect significantly, and increase covered area of red leaves, overhang, green leafy coverage area had positive air temperature cooling effect significantly.
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