首页|Carbon Return and Dynamics of Litterfall in Natural Forest and Monoculture Plantation of Castanopsis kawakamii in Subtropical China

Carbon Return and Dynamics of Litterfall in Natural Forest and Monoculture Plantation of Castanopsis kawakamii in Subtropical China

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The amount of carbon returned through litterfall and its seasonal pattern were studied in a natural forest of Castanopsis kawakamii (NF) and adjacent monoculture plantations of C. kawakamii (CK) and Chinese fir (Cunninghamia lanceolata) (CF) in Sanming, Fujian Province, China. Mean annual carbon return through total litterfall over 3 years (from 1999 to 2001) was 5.097 t·hm-2 in the NF, 4.337 t·hm-2 in the CK and 2.502 t·hm-2 in the CF respectively. Of the total carbon return in the three forests, leaf contribution accounted for 58.96%, 68.53% and 56.12% and twig 24.41%, 22.34% and 26.18%, respectively. The seasonal patterns of carbon return from total litterfall and leaf-litter were quite similar among the three forests. A peak of carbon input from litterfall in the NF and the CK occurred in spring except for the highest annual C return through branch litter of the NF in summer, while the CF showed the maximum C return in summer. The results of this study demonstrate that the natural forest has a greater C return through litterfall than monoculture plantations, which is beneficial to the increase of soil organic matter storage and the maintenance of soil fertility.

carbon returnlitterfallCastanopsis kawakamiiCunninghamia lanceolatanatural forestmonoculture plantation

Guo Jianfen、Xie Jinsheng、Lu Haoliang、Liu Dongxia、Yang Yusheng、Chen Guangshui

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College of Life Science, Xiamen University, Xiamen 361005, P. R. China

College of Forestry, Fujian Agricultural and Forestry University, Nanping 353001, P. R. China

College of Geography Science, Fujian Normal University, Fuzhou 350007, P. R. China

高等学校优秀青年教师教学科研奖励计划Key Basic Research Project of Fujian Province

TRAPOYT2000F004

2004

森林生态系统(英文版)
北京林业大学

森林生态系统(英文版)

影响因子:0.09
ISSN:2095-6355
年,卷(期):2004.6(1)
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