• 한국환경복원기술학회지
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• 제9권6호
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• pp.117-122
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• 2006

The objective of this study is to analyze the greenroof runoff quantity and delay. The experimental districts, have different soil thickness and vegetation, had installed. A measurement was conducted in Seoul University to investigate the runoff quantity and delay of the greenroof. The measurement point of runoff quality data were 8, located next to each experimental district. Also, the precipitation was measured by rain gauges(# RG2). The experimental investigation lasted from 21th July to 4th December, a total of 137 days. The results showed that the greenroof can contribute runoff retention and delay by soil, but the intensity of actual rain event affected the runoff reduction and delay. Overall, when was the rainy season, percent rainfall retention ranged 17.5% and runoff flow was delayed for 1-3 hours. But on the other hand, when was the typical rain event, percent rainfall retention ranged over 90% and runoff flow was delayed for 1-11 hours. In the result, the greenroof had the greatest runoff retention and delay, while for the typical rain event.

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2010년 학술대회 논문집
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• pp.261-265
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• 2010

• KIEAE Journal
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• 제13권5호
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• pp.111-118
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• 2013

This study aims to investigate advantages of complex installation of green roof and PV system in a public building, to analyze the impact of green roof on the efficiency of PV power generation, and to consider the correlation between green roof and PV power generation. When the temperature and power generation of the modules installed in the green roof and non-green roof of the public building were measured for 3 days, the average temperature of the green roof was 23.6 degrees, and it was 36.1 degrees in the non-green roof which increased by nearly 53%. Overall, the module temperature in the green roof was lower. On the other hand, in relation to the PV generation depending on temperature reduction during the same period, the mono-crystalline module and the poly-crystalline module in the green roof showed an increase in generation at nearly 222.2W and 341.6W, and the efficiency rose by 5.5% and 6.2%, respectively, compared to the modules in the non-green roof. Therefore, it is analyzed that green roof has a positive influence on PV power generation. Finally shows the efficiency of the installed on the Green Roof PV system (complex Installation) higher than on the concrete roof PV system. Thus, the complex PV systems as well as the usual benefits of green roofs will provide greater synergies.

• 상하수도학회지
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• 제29권2호
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• pp.165-169
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• 2015

Green roofs are gaining much interest in many cities around the world due to its multi-purpose effects of water conservation, flood mitigation and aesthetic benefits. However it may cause additional water demand to maintain green plants, which may intensify the current and future water shortage problems. While ordinary concrete roofs and normal green roof drains off rain water, concave green roof system can retain rain water because of its water holding capability. In this study, the water conservation effect of concave green roof was compared to normal roof on #35 building in Seoul National University, Seoul, Korea. For seven rainfall events the amount of stored rainwater and runoff were measured and proved water conservation effect of the concave green roof system. The concave green roof system of which area is 140m2 showed effect of water conservation from 1.8ton to 7.2ton and the most influence factors on water conservation in green roof are rainfall and antecedent day. If this concave green roof is applied to many buildings in the cities, it is expected as a way to water conservation through rainfall storage.

• 한국환경생태학회지
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• 제29권6호
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• pp.947-951
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• 2015

본 연구는 옥상녹화를 비롯한 인공지반녹화에 활용 가능한 조경용 초화류의 원활한 생육을 위한 적정 관수 주기를 규명하고 옥상 조건에서 관수 필요 여부를 규명하고자 하였다. 옥상녹화에 적용 가능하며 관상가치가 있는 총 20종의 초본식물을 선정하여 녹화용 식물의 토양수분흡수특성을 알아보기 위한 시험과 관수주기에 따른 식물의 생육변화를 알아보기 위한 시험으로 나누어 시행하였다. 식물의 수분스트레스와 열스트레스를 최소화하기 위해서는 평균 4~5일 이전의 관수 주기가 요구되며 식물의 원활한 생장과 이에 따른 환경적 효과를 위해서는 반드시 관수 관리가 요구된다고 판단되었다. 이러한 결과는 건축물이나 인공지반 녹화 시 기초자료로 활용하여 지속가능한 식재계획 수립에 도움이 될 것으로 기대되며, 향후 좀 더 다양한 녹화식물들에 대한 연구가 필요할 것으로 생각된다.