生态学杂志2011，Vol.30Issue(1)：66-71,6.
采伐木对森林碳储量的影响
Effects of harvested wood products on forest carbon storage
摘要
Abstract
Forest is the largest carbon ( C) pool in terrestrial ecosystem. Under the background of global warming, the influence of forest management on the C pool is increasingly drawing the attention of scientists all over the world. Most of the literatures in China consider that the harvested wood products ( HWP) discharge C at current year, but actually, the C in HWP can be deposited for a long time. According to the usage and harvesting practices of HWP, the HWP were divided as 1) harvested residues ( DBH ≤6 cm) , and 2) solid wood products and paper products (DBH ＞6 cm). This paper investigated the DBH and tree species composition before and after harvesting in the broadleaved-Korean pine mixed forests in Changbai Mountain, and studied the dynamic changes of the forest C storage, based on the actual emission of C from HWP. The results showed that the C storage of harvested residues was 1. 1 t C, and the C emission speed changed from fast to slow. The total C emission would last over 80 years. The C storage of solid wood products was 20. 56 t C, and the cumulated C emission in 80 years reached 20. 07 t C ( 97. 71％ ) . The C storage of paper products was 3. 63 t C, and the cumulated C emission would reach 3. 45 t C (95. 13％ ) in the first 7 years. If the C emission from HWP was considered at current year, the forest C pool would take 20 years to reach the level before harvesting; if considering the actual C emission from HWP, the forest C pool would be always larger than the level before harvesting. Therefore, it would be reasonable and meaningful to consider the actual C emission from HWP so as to accurately estimate the forest C storage in China.关键词
阔叶红松林/森林采伐木/碳排放/采伐/碳储量分类
农业科技引用本文复制引用
叶雨静,于大炮,王玥,周旺明,丁宏,王庆伟,王绍先,代力民..采伐木对森林碳储量的影响[J].生态学杂志,2011,30(1):66-71,6.基金项目
国家自然科学基金项目(30800139、40873067)和中国科学院知识创新工程项目(KZCXZ-YW-Q1-05)资助. （30800139、40873067）
