Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Variation of Ecological Niche of Quercus serrata under Elevated $CO_2$ Concentration and Temperature

$CO_2$ 농도 및 온도 상승에 의한 졸참나무의 생태적 지위 변화

  • Cho, Kyu-Tae (Department of Biology Education, Seowon University) ;
  • Jeong, Heon-Mo (Ecological Adaptation Research Team, National Institute of Ecology) ;
  • Han, Young-Sub (Ecological Monitoring Research Team, National Institute of Ecology) ;
  • Lee, Seung-Hyuk (Ecological Monitoring Research Team, National Institute of Ecology)
  • 조규태 (서원대학교 생물교육과) ;
  • 정헌모 (국립생태원 생태적응연구팀) ;
  • 한영섭 (국립생태원 자연환경조사팀) ;
  • 이승혁 (국립생태원 자연환경조사팀)
  • Received : 2014.03.25
  • Accepted : 2014.04.14
  • Published : 2014.06.30
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Abstract

In order to investigate effects of elevated $CO_2$ concentration and temperature on the ecological niche of Quercus serrata in Korea. We divided experimental condition in the greenhouse that are control (ambient condition) and treatment with elevated $CO_2$ (approximately 1.6 above than control) and increased air temperature (approximately $2.2^{\circ}C$ above than control). We measured twenty kind characters of seedlings and calculated the ecological niche breadth. As a result, the ecological niche breadth, treatment was widened in the light gradient than the control, was narrowed in the moisture and nutrient gradient. This is may be predicted when the global warming progress, Q. serrata is increases resistance to light environment, and decrease resistance to moisture and nutrient environment. According to the principal component analysis (PCA), control and treatment were arranged based on factor 1 and 2 in each environment gradients. Ecological response is involved variety characters. Among them, indicating that Characters of production is involved in many a parts.

한반도의 낙엽성 참나무인 졸참나무(Quercus serrata)의 생태적 지위폭이 $CO_2$ 농도와 온도가 상승하였을 때 광, 수분 그리고 영양소 구배에서 어떻게 변화하는지 알아보고자 유리온실에서 대조구와 온난화처리구로 구분하여 재배한 후, 유식물의 20가지 형질을 측정하고 생태적 지위폭을 계산하였다. 그 결과, 생태적 지위폭은 광구배에서 대조구보다 온난화처리구가 넓어졌고, 수분과 영양소 구배에서는 대조구보다 온난화처리구가 좁아졌다. 이것은 지구온난화 진행 시 졸참나무는 광 환경에 대한 내성이 증가되고, 수분과 영양소 환경에 대한 내성이 감소될 것으로 예측할 수 있다. 주성분분석(PCA) 결과, 각 환경 구배에서 요인 1과 요인 2에 의해 대조구와 온난화처리구가 구분되었다. 생태학적 반응은 다양한 형질이 종합적으로 관여하며, 그 중에서 식물의 생산량을 나타내는 형질이 많은 부분 관여하는 것으로 판단된다.

Keywords

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