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기후변화 환경에서의 낙엽성 참나무 6종의 발아와 초기 생장 정헌모· KCI 등재

Impact of Germination and Initial Growth of Deciduous Six Oak Species under Climate Change Environment Condition.

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생태와 환경 (Korean Journal of Ecology and Environment)
초록

The present study investigated the effect of global warming on germination and initial growth across six deciduous oak species (Quercus mongolica, Q. variabilis, Q. serrata, Q. dentata, Q. aliena, and Q. acutissima), which are the dominant tree species in Korea forest ecosystems. Seeds were sown in climate change treatments, with temperatures higher than those of the control (approximately 3.0°C higher), and CO2 concentrations higher than those of the control (approximately 2-fold higher). Initial growth in each species was measured every two weeks. Initial growth was more rapid in all oak species at the time of root and shoot emergence under high temperature and CO2 treatments than in the control group. Leaf emergence in Q. mongolica, Q. variabilis, and Q. serrata occurred earlier under the climate change treatments than under the control. Root length increased significantly in Q. mongolica, Q. variabilis, and Q. dentata under the climate change treatments when compared to under the control. However, Q. aliena and Q. serrata exhibited a contrasting trends, and no significant difference was observed between the species and Q. acutissima. Shoot length increased significantly in Q. aliena under climate change treatments when compared to under the control but decreased in Q. aliena. In addition, no significant difference was observed in shoot length among Q. mongolica, Q. dentata, and Q. acutissima. The results showed that climate change treatments facilitated early growth, rapid emergence from the ground, leaf development, and enhanced belowground growth in Q. mongolica. Conversely, Q. aliena exhibited the lowest aboveground and belowground growth under climate change treatments when compared to other oak species. Climate change treatments had the least impact on Q. acutissima considering the insignificant differences observed in initial growth rates under climate change treatment.

목차
서 론
재료 및 방 법
    1. 낙엽성 참나무 6종의 종자 수집과 배치
    2. 기후변화 처리
    3. 측정 및 데이터 분석
결과 및 고 찰
    1. 6종 참나무의 지상부, 지하부 및 잎 출현시기
    2. 환경처리에 따른 식물체 길이 및 잎 수 비교
    3. 기후변화에 의한 참나무 유식물의 영향
적 요
저자
  • 정헌모(국립생태원 기후변화연구팀) | Heon Mo Jeong (Team of Climate Change Research, National Institute of Ecology, Seocheon 33657, Republic of Korea)
  • 김해란(국립생태원 환경영향평가팀) | Hae Ran Kim (Environmental Impact Assessment Team, National Institute of Ecology, Seocheon 33657, Republic of Korea)
  • 유영한(공주대학교 생명과학과) | Young Han You (Department of Biology, Kongju National University, Gongju 32588, Republic of Korea) Corresponding author