中国林学(英文版)2004，Vol.6Issue(1)：33-36,4.
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
摘要
Abstract
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.关键词
carbon return/litterfall/Castanopsis kawakamii/Cunninghamia lanceolata/natural forest/monoculture plantationKey words
carbon return/litterfall/Castanopsis kawakamii/Cunninghamia lanceolata/natural forest/monoculture plantation引用本文复制引用
Guo Jianfen,Xie Jinsheng,Lu Haoliang,Liu Dongxia,Yang Yusheng,Chen Guangshui..Carbon Return and Dynamics of Litterfall in Natural Forest and Monoculture Plantation of Castanopsis kawakamii in Subtropical China[J].中国林学(英文版),2004,6(1):33-36,4.基金项目
Supported by the Teaching and Research Award Program of MOE P.R.C. (TRAPOYT) and the Key Basic Research Project of Fujian Province (2000F004) （TRAPOYT）
