摘要
利用中国4次森林资源清查资料以及中国森林生态系统定位观测研究站（CFERN）的实测数据，估算了中国1977—2003年4个时期杉木林生态系统的碳储量，分析了其年龄结构特征、垂直分配结构特征、时空动态格局和贮碳潜力。总碳储量研究结果1977—1981为1．09Gt，1984—1988为1．496Gt，1994—1998为2．446Gt，1999—2003为2．866Gt。江西、湖南、浙江、福建、云南、广西和广东7省的杉木林碳储量约占84％-86％。幼、中龄杉木林碳储量在79％-83．90％之间，随着杉木林的演替成熟，我国杉木林生态系统是一个潜在的碳库。在垂直分布上，乔木层碳储量占9．38％-10．63％，林下植被占0．6％-0．7％，土壤占87．99％-89．02％，枯落物占0．68％-0．78％，不同时期杉木林生态系统碳储量的垂直分配结构基本相似。1999—2003期间中国杉木林生态系统碳素现存量为2．866Gt，一个龄级期（10a）后碳储量将达到3．772Gt，并以90．63Mt·a^-1的平均积累速率递增，是一个贮存潜力大，增长速率快的碳库。
Forest resources inventories materials and data from China Forest Ecosystem Location Research Network （CFERN） were prepared for estimating 4 periods of carbon storage of Chinese fir forest ecosystem from 1977 to 2003. We analyzed their ages structure, vertical distribution, spatial and temporal patterns and its potential carbon storage. Carbon storage of Chinese fir forest ecosystem were, 1.09 Gt C in 1977 - 1981, 1. 496 Gt C in 1984 - 1988, 2. 446 Gt C in 1994 - 1998, 2. 866 Gt C in 1999 -2003, they were increasing year by year. Carbon storage of Jiangxi, Hunan, Zhejiang, Fujian, Yunnan, Guangxi and Guangdong accounted for between 84% and 86% , it is a huge carbon pool in China. Carbon storage of young growth and half-mature trees were the major carbon pools of Chinese fir forest, with the percentages between 79 and 83.9, they will be a large carbon pool as trees grew elder and elder. In Chinese fir forests, carbon storage of trees were between 9.38% and 10. 63%, trees under Chinese fir were between 0. 6% and 0. 7% , soil were between 87.99% and 89. 02% , litter were between 0. 68% and 0. 78%. Thus, they were similar vertically. Carbon storage was 2. 866 Gt from 1999 to 2003, and it will be 3.772 Gt C after ten years, there will be 90. 63 Mt carbon fixed by Chinese fir forest every year, henceforth, Chinese fir forest can store more and more carbon, and it will be larger and larger soon.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第2期93-98,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金重大项目资助项目(30590381-03)
江西大岗山森林生态系统定位研究资助项目(2001-06)
江西大岗山国家级森林生态站资助项目
关键词
碳
储量
生态系统
杉木林
中国
carbon
storage
ecosystem
Chinese fir forest
China
