한국조경학회지 (Journal of the Korean Institute of Landscape Architecture)

  • 제40권6호
  • /
  • Pages.180-189
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  • 2012
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  • 1225-1755(pISSN)
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  • 2288-9566(eISSN)
한국조경학회 (The Korean Institute of Landscape Architecture)
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저관리·경량형 옥상녹화를 위한 세덤류의 내서성 평가

Hot Tolerance Assessment of Sedum spp. for Extensive Green Roof System

  • 조홍하 (동국대학교 대학원 조경학과) ;
  • 손희준 (동국대학교 대학원 조경학과) ;
  • 강태호 (동국대학교 조경학과)
  • Zhao, Hong-Xia (Dept. of Landscape Architecture, Graduate School, Dongguk University) ;
  • Son, Hee-Jun (Dept. of Landscape Architecture, Graduate School, Dongguk University) ;
  • Kang, Tai-Ho (Dept. of Landscape Architecture, Dongguk University)
  • 투고 : 2012.08.23
  • 심사 : 2012.12.20
  • 발행 : 2012.12.31
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초록

이 연구는 저관리 경량형 옥상녹화시스템을 위한 내서성 식물 선발을 목적으로 6종 세덤식물을 대상으로 처리 시간과 온도에 따라 전해질 용출, 엽록소 함량 변화 및 재생 실험을 실시하였으며, 토양수분과 고온스트레스와의 관계를 연구하였다. Logistic비선형 회귀분석을 이용하여 6시간의 고온 처리 후 5%의 토양 함수량의 치사 온도는 $45.1{\sim}48.0^{\circ}C$, 토양 함수량 10%, 15%의 경우 각각 $47.5{\sim}49.3^{\circ}C$, $48.6{\sim}52.8^{\circ}C$의 범위로 측정되었다. 고온스트레스는 처리 시 토양 수분이 높을수록 세덤류의 내서성이 높아졌다. 엽록소 함량은 처리 온도가 높을수록 함량이 낮아졌고, 토양 수분 함량이 낮을수록 분해 속도가 높아졌다. 토양 함수량 5% 시 고온에 대한 저항성은 S. reflexum>S. takevimense>S. middendorffianum>S. album>S. sieboldii>S. spurium의 순으로 나타났으며, 토양 함수량이 15%의 경우는S. album>S. reflexum>S. spurium>S. takevimense>S. middendorffianum>S. sieboldii의 순으로 나타났다. 토양의 수분 함량이 높을수록 S. album, S. reflexum, S. spurium의 내서성이 높아졌다. 이러한 결과는 재생 검사의 결과와 전해질 용출 평가에 일관성이 있는 것으로 증명되었다.

This study was carried out to suggest an experiment based for selecting Sedum, which can adapt well with heat tolerance in extensive green roof system. The heat tolerance of Sedum subject to laboratory high temperature treatment and heat processing time were evaluated using electrolyte leakage, chlorophyll content and regrowth test, and the relation between soil water content and heat tolerance were researched. Logistic model of nonlinear regression analysis was used to evaluate the lethal temperatures that were predicted with the range of $45.0{\sim}48.1^{\circ}C$(soil water content 5%), $47.5{\sim}49.3^{\circ}C$(10%), $48.6{\sim}52.8^{\circ}C$(15%) in 6-hours high-temperature treatment. The higher the soil water content, the stronger the heat resistance property of Sedum. there is. The higher the treatment temperature, the lower the chlorophyll content, and the less the soil water content, the faster the chlorophyll decomposition. The order of hot-temperature resistance was S. reflexum>S. takevimense>S. middendorffianum>S. album>S. sieboldii>S. spurium when soil water content was 5%. The order of hot-temperature resistance was S. album>S. reflexum>S. spurium>S. takevimense>S. middendorffianum>S. sieboldii when soil water content was 15%. The more of soil water content, S. album, S. reflexum, S. spurium had stronger tolerant of hot temperature. These results were consistent with those from the regrowth test and the heat tolerance tested by electrolyte leakage evaluation.

키워드

참고문헌

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피인용 문헌

  1. Effect of Organic Fertilizer Application depends on Soil Depths on the Growth of Spiraea bumalda 'Gold Mound' in a Extensive Green Roof System vol.23, pp.2, 2014, https://doi.org/10.5322/JESI.2014.23.2.239
  2. Performance Evaluation and Field Application of Red Clay Green Roof Vegetation Blocks for Ecological Restoration Projects vol.9, pp.3, 2017, https://doi.org/10.3390/su9030357