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NTIS 바로가기한국농림기상학회지 = Korean Journal of Agricultural and Forest Meteorology, v.18 no.1, 2016년, pp.1 - 15
권보람 (강원대학교 산림자원학과) , 전지현 (강원대학교 산림자원학과) , 김현석 (서울대학교 산림과학부) , 이명종 (강원대학교 산림자원학과)
Annual litterfall production and leaf area index (LAI,
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핵심어 | 질문 | 논문에서 추출한 답변 |
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엽면적지수를 추정하는 방법으로 직접 방법과 간접 방법의 장단점은 무엇인가? | 엽면적지수를 추정하는 방법은 수확법이나 낙엽수 거망법과 같이 잎의 면적을 직접 측정하는 직접방법과 광학적 측정기기를 사용하여 잎의 면적을 측정하지 않고 추정하는 간접방법이 있다. 직접방법은 가장 정확도가 높지만, 시간과 노동의 소모가 크며(Chason et al., 1991; Gower et al., 1999), 간접방법은 정확도는 떨어지지만, 편리하고 넓은 지역을 대상으로 적용할 수 있다(Chen, 1996; Jonckheere et al., 2004). | |
엽면적지수는 어떤 영향력을 미치는가? | 엽면적지수(LAI: Leaf Area Index)는 산림의 광합성량, 호흡량, 증발산량 등에 직접적으로 영향을 미칠 뿐만 아니라, 강우나 태양에너지의 차단, 식물과 대기 사이의 에너지 교환 등에도 영향을 미치게 된다(Le Dantec et al., 2000; Osada et al. | |
엽면적지수의 정확한 측정 혹은 예측이 필요한 이유는 무엇인가? | , 2005). 따라서 엽면적지수의 정확한 측정 혹은 예측은 산림생태계의 탄소, 물, 에너지 순환 모델의 정확도를 높이고, 기후변화로 인한 산림 생태계의 변화와 적응 · 저감 능력을 평가 · 예측하는데 필수적이다 (Watanabe et al., 2004; Walcroft et al. |
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