鼎湖山马尾松林生态系统碳素分配和贮量的研究

鼎湖山马尾松林中 ,马尾松各器官碳含量平均为 5 4.46%,灌木层植物 48.1 0 %,草本层植物40 .2 1 %,地表现存凋落物层 5 4.40 %,以上各组分总平均为 49.2 9%。土壤碳密度为 7.3 7kg· m- 2 (深 1 0 0cm)。生态系统各组分碳贮量分别为 :乔木层 68.876t·hm- 2 ,林下植物层 6.0 3 0 t· hm- 2 ,凋落物层 5 .892 t·hm- 2 ,土壤层 73 .70 5 t· hm- 2。根据研究结果 ,还对广东省马尾松林的现有碳贮量和碳吸存潜力进行了估算和讨论。

Study on carbon distribution and storage of a pine forest ecosystem in Dinghushan Biosphere Reserve

Carbon distribution and storage of a pine forest ecosystem in Dinghushan Biosphere Reserve was studied. Results indicated that the average carbon content in different layers was in the following order: trees (54.46%)>standing litters(54.40%)>shrub (48.10%)>herb(40.21%). The carbon density in soil(to 100 cm)was 7.37 kg·m -2 . Carbon storages in each component of the ecosystem were: 68.876 t·hm -2 (tree layer),6.030 t·hm -2 (understory layer),5.892 t·hm -2 (standing litter),73.705 t·hm -2 (soil layer),respectively. In addition,the total standing carbon storage and sequestration potential of the pine forest in Guangdong Province was estimated and discussed in this paper.