|
|||||
|
|
| Carbon Return and Dynamics of Litterfall in Natural Forest and Monoculture Plantation of Castanopsis kawakamii in Subtropical China | |
| 作者单位： | Guo Jianfen1 Xie Jinsheng2 Lu Haoliang2 Liu Dongxia2 Yang Yusheng3* Chen Guangshui3 1College of Life Science，Xiamen University，Xiamen 361005，P. R. China 2College of Forestry，Fujian Agricultural and Forestry University，Nanping 353001，P. R. China 3College of Geography Science，Fujian Normal University，Fuzhou 350007，P. R. China |
| 基金项目： | 高等学校优秀青年教师教学科研奖励计划，the Key Basic Research Project of Fujian Province |
| 摘 要： | 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穐m2 in the NF, 4.337 t穐m2 in the CK and 2.502 t穐m2 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： | 栲属植物 中国 亚热带地区 纯林 原始森林 碳循环 落叶 |
| 收稿时间： | 2003-8-24 |
Carbon Return and Dynamics of Litterfall in Natural Forest and Monoculture Plantation of Castanopsis kawakamii in Subtropical China |
|
| Authors: | Guo Jianfen Xie Jinsheng Lu Haoliang Liu Dongxia Yang Yusheng Chen Guangshui |
| Institution: | 1. College of Life Science, Xiamen University, Xiamen 361005, P. R. China 2. College of Forestry, Fujian Agricultural and Forestry University, Nanping 353001, P. R. China 3. College of Geography Science, Fujian Normal University, Fuzhou 350007, P. R. China |
| 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. |
| Keywords: | carbon return litterfall Castanopsis kawakamii Cunninghamia lanceolata natural forest monoculture plantation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《中国林学》浏览原始摘要信息 | |
| 点击此处可从《中国林学》下载免费的PDF全文 | |