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자료유형
학술저널
저자정보
조현길 (강원대학교 건축조경학부) 안태원 (강원대학교 대학원)
저널정보
한국조경학회 한국조경학회지 한국조경학회지 제27권 제2호
발행연도
1999.1
수록면
19 - 28 (10page)

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This study quantified shading, evapotranspiration and windspeed-reduction effects of trees on use and cost of heating and cooling energy in two residential neighborhoods of Chuncheon different in tree cover. Annual savings per residence of heating energy were approximately 1,210 MJ(1%) and those of cooling energy, 130 kWh(10%) in study district 1 having tree cover of about 10% . For district 2 with tree cover of about 20%, annual heating and cooling savings were 2,130 MJ(2%) and 180 kWh(19%) per residence, respectively. Trees annually saved energy costs by approximately ₩31,000 ($26, $1=₩1,200) per residence in district 1 and by ₩49,000($41) in district 2. One tree taller than 3 m resulted in annual energy savings of ₩8,000($7) in the study districts. Energy savings by trees in district 2, which had higher tree cover by 10% difference than district 1, were about 2 times greater than those in district 1. This implies that more tree plantings could enhance energy saving effects. Of the total costs saved, 58% was attributed to windspeed reduction and 47%, evapotranspiration. However, shading increased energy costs by 5% due to tree plantings at the wrong locations. Full tree plantings on the west and north of buildings and avoidance of shade-tree plantings of use of solar-friendly trees on the south are recommended to increase building energy savings efficiently.

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