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한국조경학회 / v.32, no.3, 2004년, pp.51-59 
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도심 녹음수의 체감온도지수(WBGT) 조절효과
( The Effect of Urban Shade Trees on the WBGT(Wet Bulb Globe Thermometer Index) ) |
| 주민진;이춘석;류남형; (주)지오 이.엔.지;진주산업대학교 조경학;진주산업대학교 조경학과;
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| 초 록 |
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| Focusing on WBGT(Wet Bulb Globe Thermometer Index) according to the LAI(Leaf Area Index) variation of trees, this study verifies the effects of urban shade trees on the outdoor thermal environment. As for methodology, air$.$globe temperature, air humidity and WBGT were measured under three shade trees whose LAIs were 2.1, 4.0 and 8.2 respectively at midday(12:00-13:00) of 14 sunny days from the 4th through the 29th day of September 2003. Those factors were also measured at the unshaded areas and compared with the values of shaded areas. The measured site was paved with interlocking concrete bricks. The measurements were analyzed through the ANCOV A(Analysis of Covariance) and the regression routines of SPSS11 for windows (SPSS Inc., 2001). The major findings were as follows. 1. The direct correlation between WBGT and LAI was very low. On the contrary, the WBGT showed close correlation with air$.$globe temperature and air humidity, and the LAI also showed very close correlation with globe temperature. These results tell that dominant shading effect by the tree is on the screening of direct solar radiation which lower the globe temperature and WBGT consequently. 2. While the average globe temperatures and WBGT at unshadowed area were 40.4$^{circ}C$ and 26.2$^{circ}C$ respectively, the former under the shade tree with LAI 2.1, 4.0 and 8.2 were 34.5$^{circ}C$, 32.6$^{circ}C$ and 30.2$^{circ}C$, and the latter were 24.6$^{circ}C$, 24$^{circ}C$ and 23.4$^{circ}C$ respectively. 3. The relationship between LAI(x) and WBGT(y) can be presented with the following equation: y = 24.23+1.53 $e^{-x}$+0.36x $e^{-x}$+0.46 $x^2$ $e^{-x}$ ($R^2$ =.98) =.98) |
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| 키워드 |
| LAI(Leaf Area Index);WBGT(Wet Bulb Globe Thermometer Index);Urban Shade Tree; |
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한국조경학회지 / v.32, no.3, 2004년, pp.51-59
한국조경학회
ISSN : 1225-1755
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922606891)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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