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http://dx.doi.org/10.13047/KJEE.2016.30.4.793

Correlation Between the Microclimate and the Crown of Platanus orientalis and Ulmus davidiana  

Lee, Jae-yoon (Dept. of Horticulture and Landscape Architecture, Sangju Univ.)
Ki, Kyong-Seok (Dept. of Horticulture and Landscape Architecture, Sangju Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.30, no.4, 2016 , pp. 793-799 More about this Journal
Abstract
This study examined Platanus orientalis and Ulmus davidiana planted in downtown parks to identify the correlations among microclimatic factors such as temperature in the crown, air flow, and wind speed. For the field survey, measurements were taken at 1 hour intervals from 09:00 am to 06:00 pm in August. For the measurement of microclimatic factors, data on temperature, light intensity, air flow, and wind speed were collected using a quantum sensor (PAR Quantum Sensor SKP215), a precision thermometer (Pt1000-Sensor), and a combination anemometer (1467 G4 & HG4). The results of the analysis demonstrated that both Platanus orientalis and Ulmus davidiana, showed a greater cooling effect inside the crown as compared with the outside temperature. The cooling effect inside the crown was more evident with air flow and wind speed factors. With relation to wind, the inner temperature of the crown of Platanus orientalis decreased due to air flow while that of Ulmus davidiana decreased due to wind speed. With no wind, the average variation in temperature inside the crown was $-0.9^{\circ}C$ for Ulmus davidiana and $-0.958^{\circ}C$ for Platanus orientalis, indicating that Platanus orientalis was relatively more effective in lowering the temperature of the planting space than Ulmus davidiana. This study is significant because it shows that different tree species have different effects on the microclimate and that factors affecting the formation of the microclimate of trees may vary with species. Further studies on species other than broad leaf trees, such as evergreen trees and shrubs, are required in order to plan the distribution of landscaping trees that are effective in regulating the microclimate within urban green spaces.
Keywords
COOLING EFFECT; URBAN HEAT ISLAND EFFECTS; TEMPERATURE; WIND SPEED; AIR VOLUME; MICROCLIMATE CONTROL;
Citations & Related Records
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