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NTIS 바로가기韓國林學會誌 = Journal of Korean Forest Society, v.102 no.4, 2013년, pp.522 - 529
이선정 (고려대학교 환경생태공학과) , 한새롬 (고려대학교 환경생태공학과) , 윤태경 (고려대학교 환경생태공학과) , 한승현 (고려대학교 환경생태공학과) , 정예지 (고려대학교 환경생태공학과) , 윤순진 (고려대학교 환경생태공학과) , 손요환 (고려대학교 환경생태공학과)
Climate change will affect the physiological traits and growth of forest trees. This study was conducted to investigate the effects of an experimental warming on growth and physiological characteristics of Pinus densiflora S. et Z. seedlings. One-year-old P. densiflora seedlings were planted in cont...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
산림의 역할은? | 산림은 우리나라 국토 면적의 약 64%를 차지하며 탄소 순환과 생태계 기능에 큰 역할을 하고 있다(Korea Forest Research Institute, 2012). 최근 기후변화로 인한 기온과 강수량 변화에 따라 산림생태계 내 수종 구성, 식생대, 생산성 등의 구조와 기능이 변화될 것으로 예측되고 있기 때문에 기후변화에 의한 산림생태계 변화를 연구하는 것이 필요하다(Rustad et al. | |
잎의 C/N율이 증가한 이유는? | 본 연구에서 잎의 C/N율이 증가한 것은 통계적으로 유의하지는 않지만 잎의 질소 농도가 감소한데 따른 것으로, 다음과 같은 다양한 요인과 관련이 있는 것으로 보고되었다. 첫째, 높은 온난화 처리에 따라 잎에 질소 함량이 낮고 탄소 함량이 높은 구조물을 만들어 잎 조직을 보호하기 때문이다(Busotti et al., 2000; Sardans et al., 2008). 둘째, 잎의 질소가 건조한 조건에서 다른 목질부로 이동하는 가뭄 회피 기작에 의해 감소하기 때문이다(Sardans et al., 2008). 셋째, 잎의 질소 농도와 밀접한 관련이 있는 토양 내 질소 양분은 질소 무기화에 결정되는데(An et al., 2005; Van Cleve et al., 1990), 일정한 범위 내에서 토양 수분 함량이 감소할수록 질소 무기화도 감소하기 때문이다(Emmett et al., 2004). | |
기후변화에 의한 산림생태계 변화를 연구하는 것이 필요한 이유는? | 산림은 우리나라 국토 면적의 약 64%를 차지하며 탄소 순환과 생태계 기능에 큰 역할을 하고 있다(Korea Forest Research Institute, 2012). 최근 기후변화로 인한 기온과 강수량 변화에 따라 산림생태계 내 수종 구성, 식생대, 생산성 등의 구조와 기능이 변화될 것으로 예측되고 있기 때문에 기후변화에 의한 산림생태계 변화를 연구하는 것이 필요하다(Rustad et al., 2001; Wu et al. |
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