한국농림기상학회지, 제 7권 제3호(2005) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 7, No. 3, (2005), pp. 227~234
ⓒ Author(s) 2014. CC Attribution 3.0 License.


Litterfall과 토양호흡 측정에 의한 신갈나무 천연림의
지하부 탄소 분배

이명종(1), 손요환(2), 진현오(3), 박인협(4), 김동엽(5), 김용석(1), 신동민(1)
(1)강원대학교 산림자원학부, (2)고려대학교 환경생태공학부,
(3)경희대학교 생명과학대학, (4)순천대학교 산림자원학과, (5)성균관대학교 조경학과

(2005년 08월 15일 접수; 2005년 09월 08일 수락)

Belowground Carbon Allocation of Natural Quercus mongolica Forests
Estimated from Litterfall and Soil Respiration Measurements

Myong-Jong Yi(1), Yowhan Son(2), Hyun-O Jin(3), In-Hyeop Park(4),
Dong-Yeop Kim(5), Yong-Suk Kim(1), Dong-Min Shin(1)
(1)Division of Forest Resources, Kangwon National University, Chunchon, Korea
(2)Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea
(3)College of Life and Biotechnology, Kyunhee University, Yongin, Korea
(4)Department of Foest Resources, Sunchon National University, Sunchon, Korea
(5)Department of Landscape Architecture, Sungkyunkwan University, Suwon, Korea

(Received August 15, 2005; Accepted September 08, 2005)

ABSTRACT
From published data of mature forests worldwide, Raich and Nadelhoffer suggested that total belowground carbon allocation (TBCA) could be estimated from the difference between annual rates of soil respiration and aboveground litterfall. Here we analyze new measurements of IRGA-based soil respiration and litterfall of natural mature oak forests dominated by Quercus mongolica in Korea. Rates of in situ soil respiration and aboveground litter production are highly and positively correlated. Our results disagree with the Raich and Nadelhoffer model far world forests. A regression analysis of the data from Q. mongolica forests produced the following relationship: annual soil respiration : 141 + 2.08 × annual litterfall. The least squares regression line has a more gentle slope (2.08) than the slope (2.92) described by Raich and Nedelhoffer for mature forests worldwide. The regression slope of our study indicates that, on average, soil respiration is about two times the aboveground litterfall-C, which further implies that TBCA is similar with annual aboveground litterfall-C at natural Q. mongolica forests in Korea. The non-zero Y-intercept (141) of the regression indicates that TBCA may be greater than litterfall-C where litterfall rate are relativery low. Over a gradient of litterfall-C ranging from 200-370 g C m-2yr-1, TBCA increased from 350-530 g C m-2yr-1.

Keyword: Total belowground carbon allocation (TBCA), Litterfall, Quercus mongolica, Soil respiration

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