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Çѱ¹Á¶°æÇÐȸ / v.37, no.1, 2009³â, pp.18-27
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( A Study on Temperature Change Profiles by Land Use and Land Cover Changes of Paddy Fields in Metropolitan Areas ) |
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| The purpose of this study is to understand the scale of temperature change following large-scale urban developments in paddy fields to present possible measures to preserve suburban area paddy fields and to lower the scale of temperature increase after developing paddy fields in urban areas. The study was conducted in Bupyeong and Bucheon of Incheon Metropolitan City. The satellite image($1989{sim}2000$) before and after the development of old paddy fields were used to analyze the land surface temperature changes according to the land use types. Building coverage, green coverage, non-permeable pavement coverage, and floor area ratio(FAR) were selected as the factors that influence urban temperature changes and the temperature estimation model was constructed by using correlation and regression analyses. The before and after satellite images of Bupyeong and Bucheon were classified into forests, greens and plantations, paddy fields, unused lands, and urban areas. The results indicate that most of the paddy fields that existed in the center of Bupyeong and Bucheon were converted into unused lands which were undergoing construction to become new urban areas. The difference between the surface temperatures of May 17th, 1989 and May 7th, 2000 was analyzed to reveal that most land converted from paddy fields to unused lands or urban areas saw an increase in surface temperature. Han River was used as a comparison to analyze the average surface temperature changes($1989{sim}2000$) in former paddy fields. The scale of temperature changes were: $+1.6697^{circ}C$ in urban parks; $+2.5503^{circ}C$ in residential zones; $+2.9479^{circ}C$ on public lands, $+3.0385^{circ}C$ in commercial zones, and $+3.1803^{circ}C$ in educational zones. The correlation between building coverage, green coverage, non-permeable pavement coverage, or floor area ratio(FAR) and surface temperature increases was also analyzed. The green coverage to temperature increases, but building coverage, non-permeable pavement coverage, and floor area ratio(FAR) had no statistically significant temperature increases. The factors that influence urban temperature changes were set up as independent variables and the surface temperature changes as dependent variables to construct a surface temperature change model for the land use types of former paddy fields. As a result of regression analysis, green coverage was selected as the most significant independent variable. According to regression analysis, if farmland is converted into an urban area, a temperature increase of $+3.889^{circ}C$ is anticipated with 0% green coverage. The temperature saw a decrease of $-0.43^{circ}C$ with every 10% increase of green coverage. |
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| µµ½Ã¹Ì±âÈÄ;³ìÁöÀ²;µµ½Ã¿¼¶Çö»ó;³Ã¼¶;À§¼º¿µ»ó;Urban Microclimate;Green Coverage;Urban Heat Islands;Satellite Image;Regression Analysis; |
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Çѱ¹Á¶°æÇÐȸÁö / v.37, no.1, 2009³â, pp.18-27
Çѱ¹Á¶°æÇÐȸ
ISSN : 1225-1755
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200916762902350)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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