Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Environmental Characteristics and Vegetation of Hanabusaya asiatica Habitats

금강초롱꽃 자생지의 환경특성과 식생

  • Jang, Su-Kil (Department of Biological Sciences, Kangwon National University) ;
  • Cheon, Kyeong-Sik (Department of Biological Sciences, Kangwon National University) ;
  • Jeong, Ji-Hee (Department of Biotechnology, Korea University) ;
  • Kim, Zin-Suh (Department of Biotechnology, Korea University) ;
  • Yoo, Ki-Oug (Department of Biological Sciences, Kangwon National University)
  • Received : 2009.11.17
  • Accepted : 2010.02.28
  • Published : 2010.06.30
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Abstract

This study intended to investigate the environmental factors including soil and vegetation in order to better understand the environmental and ecological characteristics of ten different habitats of $Hanabusaya$ $asiatica$. These habitats, according to investigations, are mostly located on the slopes of mountains facing north at an altitude of 580 m to 1,396 m above sea level with angles of inclination ranging from 5 degrees to 80 degrees. A total of 146 vascular plant taxa are identified in 32 quadrates of the ten habitats. The importance value of $H.$ $asiatica$ is 8.87%, and 5 highly ranked species such as $Carex$ $siderosticta$ (8.67%), $Ainsliaea$ $acerifolia$ var. $subapoda$ (7.10%), $Calamagrostis$ $arundinacea$ (6.79%), $Athyrium$ $yokoscense$ (5.33%), $Astilbe$ $rubra$ (3.11%) are considered to be an affinity with $H.$ $asiatica$ in their habitats. Dominant species of woody plants in ten habitats are represented as $Quercus$ $mongolica$ in tree layer (T1), $Acer$ $pseudo$-$sieboldianum$ in subtree layer (T2), $Rhododendron$ $schlippenbachii$ and $Tripterygium$ $regelii$ in shrub layer (S). The degree of their average species diversity is 1.30, and that of dominance and evenness are 0.08 and 0.88, respectively. The type of soil is sandy loam, loam and loamy sand, and the average field capacity of soil is 23.95%. Their average organic matter is 12.28%, soil pH 5.79, and available phosphorus is 25.48%. Correlation coefficients analysis based on environmental factors, vegetation and soil analysis shows that the coverage of tree layers is correlated with richness, diversity, dominance, evenness and coverage of $H.$ $asiatica$.

특산 식물인 금강초롱꽃 자생지의 환경요인과 식생을 조사하여 보존 및 복원 시 기초자료를 제공하고자 하였다. 금강초롱꽃은 해발 580-1,396m에 위치하였고, 경사는 $5-80^{\circ}$ 로 대부분 북사면에 군락을 형성하였다. 10개 지역 32개 방형구를 조사한 결과 금강초롱꽃의 중요치는 8.87%로 가장 높았으며, 다음으로는 대사초(8.67%), 단풍취(7.10%), 실새풀(6.79%), 뱀고사리(5.33%), 노루오줌(3.11%) 등이 높게 나타나 이 종류들이 금강초롱꽃과 비슷한 환경을 선호하는 것으로 판단된다. 상층수목은 교목층에 신갈나무, 아교목층에 당단풍나무가 우점하였으며, 관목층에서는 철쭉과 메역순나무가 높은 출현 빈도와 피도를 보였다. 종다양도는 평균 1.30, 우점도와 균등도는 각각 0.08과 0.88로 산출되었다. 토양의 토성은 사양토가 우세하였고, 포장용수량은 평균 23.95%로 확인되었으며, 유기물함량은 12.28%, pH는 5.79, 그리고 유효인산함량은 $25.48{\mu}g{\cdot}g^{-1}$으로 나타났다. 환경특성과 식생조사 및 토양분석 결과를 바탕으로 한 상관분석에서는 상층수목의 피도가 종풍부도, 종다양도, 우점도, 균등도 및 금강초롱꽃의 피도와 높은 연관성을 보였다.

Keywords

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