摘要
通过对辽宁省东部山区5种森林类型的调查,对其固碳释氧量进行计量分析。结果表明:这5种森林类型的总的固碳释氧量的大小顺序与其乔木层树干的固碳释氧的排列顺序基本相似。在5种森林类型中,林木部分所占比例在85%～95%之间;各组分固碳释氧量的比例变化中均以树干所占比例最大,在50%～75%之间;而以草本和灌木的所占比例最小。不同森林类型的固碳释氧量存在很大差异:长白落叶松294.010t/hm^2、216.449t/hm^2,柞树240.906t/hm^2、177.353t/hm^2,核桃楸235.341t/hm^2、178.206t/hm^2,油松232.954t/hm^2、171.500t/hm^2,红松225.908t/hm^2、166.312t/hm^2。
The quantity of carbon fixation and oxygen release was analyzed based on the investigation of five forest types in Mountainous Regions of Eastern Liaoning Province. The result indicated that the order of carbon fixation and oxygen release by the whole forest stand of five forest types was similar to that by their trunks of dominant tree populations respectively. The trees were accounted for 85% -95% in 5 forest stand struetures, much greater than the proportion of herb and bush. The quantity of carbon fixation and oxygen release by the tree trunks was greatest among various eomponents in 5 forests types with approximately 50% -75%. There was significant differenee in quantity of earbon fixation and oxygen release between forests types. The quantity of carbon fixation and oxygen release was 294. 010 and 216. 449 t/hm^2 in the Larix olgensis forest. While it was 240. 906 and 177. 353 t/hm^2 in the oak forest, 235. 341 and 178. 206 t/hm^2 in the Juglans mandshurica forest, 232. 954 and 171. 500 t/hm^2 in the Pinus tabulaeformis forest, and 225. 908 and 166. 312 t/hm^2 in the Pi- nus koraiensis forest respectively.
出处
《林业科技开发》
2008年第5期31-34,共4页
China Forestry Science and Technology
关键词
辽东山区
森林固碳释氧量
计量
Mountainous Regions of Eastern Liaoning Province
Carbon fixation and oxygen release of forest
Measurement
