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Characteristics of Soil Moisture Rate for Optimal Growth Conditions on Greenroof Plants

옥상녹화 식물의 최적생육을 위한 토양수분 특성 연구

  • Kim, Si-Man (Urban Agriculture Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Han, Seung-Won (Urban Agriculture Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Jang, Ha-Kyung (Urban Agriculture Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Kim, Jae-Soon (Urban Agriculture Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Jeong, Myung-Il (Urban Agriculture Research Division, National Institute of Horticultural & Herbal Science, RDA)
  • 김시만 (농촌진흥청 국립원예특작과학원 도시농업과) ;
  • 한승원 (농촌진흥청 국립원예특작과학원 도시농업과) ;
  • 장하경 (농촌진흥청 국립원예특작과학원 도시농업과) ;
  • 김재순 (농촌진흥청 국립원예특작과학원 도시농업과) ;
  • 정명일 (농촌진흥청 국립원예특작과학원 도시농업과)
  • Received : 2015.11.13
  • Accepted : 2015.11.27
  • Published : 2015.12.31

Abstract

This study presents proper irrigation interval for the soil condition of green roof system and the smooth growth of the landscaping herbaceous plants available and reveal the need for irrigation in rooftop conditions. Twenty kinds of greenery plants are tested on ground paved wood panels where rain and wind shielder is installed. Before test, irrigation is conducted fully to experimental plants and then soil moisture in pot is measured after every ten minutes. In conclusion, it is suggested that the irrigation has to be carried out every 4~5 days in order to minimize water and heat stress of plants. Also, irrigation management is an essential prerequisite for good condition and the smooth growth of plants and environmental effects in green roof system.

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.

Keywords

References

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