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Establishment by Seeds and Maintenance by Ramets in Elaeagnus umbellate Population
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  • Establishment by Seeds and Maintenance by Ramets in Elaeagnus umbellate Population
  • Establishment by Seeds and Maintenance by Ramets in Elaeagnus umbellate Population
저자명
You. ng-Han,Kim. Kyung-Bunm,An. Chung-sun,Kim. Joon-Ho,Song. Seung-Dal
간행물명
한국생태학회지
권/호정보
1994년|17권 2호|pp.203-211 (9 pages)
발행정보
한국생태학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The establishment by seeds and the maintenance by ramets of the autumn olive (Elaeagnus umbellata) population were investigated in the Namhansansung Provincial Park, Jungbu-myun, Kwangju-gun, Kyunggi-do. Seed production and germination rate were 3, 300 $seeds{cdot}m^{-2}{cdot}yr^{-1}$ and 52%, respectively. The ramet formation in the population was classified into 4 types: stump type, creeping root type, lateral root type and secondary creeping root type. The subterranean creeping roots were 0.1~1.0 m in length, 4.5~14.0 mm in diameter and 0.06~0.2 m in soil depth. The number of ramets formed from a node was 1~21. The subterranean roots spread $5~509cm^2{cdot}plant^{-1}{cdot}yr^{-1}$, which began to be produced from 7~9 year-old individuals. The number of stems was 1~67 per stump, which was reduced by self-thinning from 2 to 14 year-old trees. The frequency distribution of stem diameter$(D_{30})$ showed a reverse J-shaped curve, suggesting that this population be maintained perpetually by their own ramets.