中文摘要：

对32年生楠木人工林生物量、碳含量、碳贮量及其空间分布进行测定。结果表明：楠木林分平均生物量为174.33t·hm^-2,其中乔木层为166.73t·hm^-2,占林分生物量的95.6%;楠木林分生态系统各组分碳含量为树干0.5769gC·g^-1,树皮0.4654gC·g^-1,树枝0.5232gC·g^-1,树叶0.4958gC·g^-1,树根0.4931gC·g^-1,灌木层0.4989gC·g^-1,草本层0.4733gC·g^-1,苔藓层0.4143gC·g^-1,枯落物层0.3882gC·g^-1;土壤碳含量平均值为0.0139gC·g^-1,随土层深度增加各层次土壤碳含量逐渐减少;楠木林分生态系统总碳贮量为227.59t·hm^-2,其中乔木层91.33t·hm^-2,占楠木林分生态系统总碳贮量的40.13%,灌木层0.38t·hm^-2,只占0.17%,草本层1.71t·hm^-2,占0.76%,苔藓层0.63t·hm^-2,占0.28%,枯落物层0.66t·hm^-2,占0.29%,林地土壤（0-80cm）碳贮量为132.88t·hm^-2,占58.40%;其碳库空间分布序列为土壤（0-80cm）〉乔木层〉草本层〉枯落物层〉苔藓层〉灌木层;楠木林分净生产量为8.5706t·hm^-2a^-1,其中乔木层净生产量为6.6691t·hm^-2a^-1,占林分总量的77.82%。楠木林分碳素年固定量4.2536t·hm^-2a^-1,其中乔木层碳素年固定量3.5736t·hm^-2a^-1,占林分总量的84.01%。

英文摘要：

The biomass, carbon content, carbon storage and their vertical distribution were measured in 32 - year-old artificial stand of Phoebe bourrnei. The resuhs showed： The mean biomass is 174.33 ·hm^-2 , in which the arbor layer is 166.73 t· hm^-2 accounting for 95.6% . The carbon content of stem, bark, branch, leaf, roof, shrub, herb, litchen and litter is 0.576 9, 0.465 4, 0.523 2, 0.495 8, 0.493 1, 0.498 9, 0.473 3, 0.414 3 and 0.388 2 gC·g^-1 , respectively. The mean carbon content of soil which reduces gradually with the depth is 0.013 9 gC·g^-1. The total carbon storage of P. bourrnei stand ecosystem, is 227.59 t·hm^-2 , is devided into soil layer （0 - 80 cm） accounting for 58.40% （133.88 t·hm^-2）, tree layer accounting for 40.13% （91.33 t· hm^-2 ）, herb accounting for 0.76% （ 1.71 t· hm^-2 ）, litter accounting for 0.29% （0.66 t·hm^-2）, litchen accounting for 0.28% （0.63 t· hm^-2） and shrub accounting for 0.17% （0.38 t· hm^-2）. The tree layer productiong is 6.669 1 t·hm^- 2 a^- 1 which accounts for 77.62 % of the mean net production （ 8. 570 6 t· hm^-2 a^-1 ） . The tree layer sequestration is 3.573 6 t· hm^-2 a^-1 which accounts for 84.01% of the mean annual carbon sequestration （4.253 6 t·hm^-2a^-1 ）