Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Growth Response and Ecological Niche of Quercus Dentata Thunb. Sapling under the Light, Moisture Content, Soil Texture and Nutrient Treatment

광, 수분, 토성 그리고 유기물 처리에 따른 떡갈나무 유식물의 생육 반응과 생태적 지위

  • 김의주 (국립공주대학교 생명과학과) ;
  • 정영호 (국립백두대간수목원) ;
  • 박재훈 (국립공주대학교 생명과학과) ;
  • 이응필 (국립공주대학교 생명과학과) ;
  • 이승연 (국립공주대학교 생명과학과) ;
  • 이수인 (국립백두대간수목원) ;
  • 홍용식 (한국보전협회) ;
  • 장래하 (국립생태원 멸종위기종복원센터) ;
  • 정상훈 (국립산림과학원 산림기술경영연구소) ;
  • 이영근 (국립산림과학원 산림육성.복원연구과) ;
  • 유영한 (국립공주대학교 생명과학과) ;
  • 조규태 (국립공주대학교 생명과학과)
  • Received : 2020.02.13
  • Accepted : 2020.02.21
  • Published : 2020.03.31
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Abstract

This study is to analyze the growth response of the Quercus dentata seedlings to four environmental factors and measure the ecological niche breadth. Environmental factors were light, moisture content, soil texture, and organic matter, treated with four gradients. The more quantity light increased, the heavier the leaves biomass, aboveground biomass, belowground biomass and plant biomass was. In treatment of water content and soil texture, growth response was no difference. The more organic matter increased, the heavier aboveground biomass was, but the remaining trait of plant was no difference. The ecological niche breadth was 0.865 in light, 0.995 in moisture content, 0.994 in soil texture and 0.988 in nutrient. Ecological niche breadth was the widest in the moisture content treatment and the narrowest in the light treatment. This means that the growth of Q. dentata seedlings grows well as the amount of light increases, and is sensitive to light, Thus, it is determined a growth and ecological niche breadth by light factors.

본 연구는 4가지 환경요인에 따른 떡갈나무 유식물의 생육 반응 분석과 생태적 지위폭을 측정하였다. 환경요인은 광, 수분, 토성 그리고 유기물 함량이고 각각 4구배로 처리하였다. 광량이 많을수록 잎 무게, 지상부 무게, 지하부 무게 그리고 식물체 무게가 증가하였다. 수분함량처리구와 토성처리구에서 생육 반응은 차이가 없었다. 유기물 함량이 많을수록 지상부 무게가 증가하였지만, 나머지 형질의 생육 반응의 차이는 없었다. 생태적 지위폭은 광요인에서 0.865, 수분요인에서 0.995, 토성요인에서 0.994 그리고 유기물 함량 요인에서 0.988이었다. 생태학적 지위폭은 수분함량 처리구에서 가장 넓었고 광처리구에서 가장 좁았다. 이는 떡갈나무의 생육 반응이 광량의 양이 많을수록 생육이 좋고, 광에 민감함을 의미한다. 따라서 생육 반응과 생태적 지위폭을 결정짓는 것은 광 요인이다.

Keywords

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