| 논문명 |
분산식 빗물관리시설 적용에 따른 증발산 변화 연구 / Study on the Changes in Evapotranspiration according to the Decentralized Rainwater Management |
| 수록사항 |
한국생태환경건축학회 논문집, v.12 n.5(통권 57호) (2012-10) |
| 주제어 |
소규모 물순환 ; 분산식 빗물관리 ; 증발산 ; 증발잠열 ; 기후변화 ; 에너지밸런스 ; Small Water Circulation ; Decentralized Rainwater Management ; Evapotranspiration ; Lantent Heat of Evapotranspiration ; Climate Change ; Energy Balance |
| 요약2 |
In this study, the influence of decentralized rainwater management over the changes in evapotranspiration was analyzed. The analysis method was obtained by establishing the decentralized rainwater management plan according to different scenarios, and subsequently examined evapotranspiration in the plan. Scenario 1 refers to the analysis of the existing situation, in which was 100% of a parking lot is asphalt pavement. In Scenario 2, the pavement of the parking surface in the parking lot is replaced with lawn blocks. In Scenario 3, some asphalt pavement was removed to establish a flower-bed type infiltration system to allow rainwater to permeate. In Scenario 4, infiltration and storage of rain water would be achieved by transforming the parking surface into lawn blocks, keeping the asphalt for the parking road while establishing a vegetation strip. The amount of evapotranspiration of the target site was analyzed with a water budget analysis program (CAT) using the 2001 meteorological data for each scenario. According to the analysis values of S2 and S3, it was found that evapotranspiration is critically affected by the amount of area replaced with pervious area in the total target site. An energy equivalent to 680kWh is required for 1 ton of water to evaporate. Hence, it can be seen that the active inducement of evapotranspiration in urban area makes a positive contribution not only to heat island mitigation, but also to the small-scale water circulation process in a city. |
