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林业科学 ›› 2008, Vol. 44 ›› Issue (3): 34-39.doi: 10.11707/j.1001-7488.20080310

• 论文 • 上一篇    下一篇

楠木人工林生态系统生物量、碳含量、碳贮量及其分布*

马明东1 江洪2.3 刘跃建1   

  1. (1. 四川农业大学 都江堰611830;2. 浙江林学院国际生态中心 杭州311300;3. 南京大学国际地球系统科学研究所 南京210093)
  • 收稿日期:2006-04-06 修回日期:1900-01-01 出版日期:2008-03-25 发布日期:2008-03-25
  • 通讯作者: 江洪

Biomass, Carbon Content, Carbon Storage and Their Vertical Distribution of Phoebe bourmei Artificial Stand

Ma Mingdong1,Jiang Hong2,3,Liu Yuejian1   

  1. (1.Sichuan Agricultural University Dujiangyan 611830; 2. International Center of Ecology, Zhejiang Forestry University Hangzhou 311300; 3. Institute of Earth System Science, Nanjing University Nanjing 210093)
  • Received:2006-04-06 Revised:1900-01-01 Online:2008-03-25 Published:2008-03-25

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174.33 t·hm-2,其中乔木层为166.73 t·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0.576 9 gC·g-1树皮0.465 4 gC·g-1,树枝0.523 2 gC·g-1,树叶0.495 8 gC·g-1,树根0.493 1 gC·g-1,灌木层0.498 9 gC·g-1,草本层0.473 3 gC·g-1,苔藓层0.414 3 gC·g-1,枯落物层0.388 2 gC·g-1;土壤碳含量平均值为0.013 9 gC·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227.59 t·hm-2,其中乔木层91.33 t·hm-2,占楠木林分生态系统总碳贮量的40.13%,灌木层0.38 t·hm-2,只占0.17%,草本层1.71 t·hm-2,占0.76%,苔藓层0.63 t·hm-2,占0.28%,枯落物层0.66 t·hm-2,占0.29%,林地土壤(0~80 cm)碳贮量为132.88 t·hm-2,占58.40%;其碳库空间分布序列为土壤(0~80 cm) >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8.570 6 t·hm-2a-1,其中乔木层净生产量为6.669 1 t·hm-2a-1,占林分总量的77.82%。楠木林分碳素年固定量4.253 6 t·hm-2a-1,其中乔木层碳素年固定量3.573 6 t·hm-2a-1,占林分总量的84.01%。

关键词: 楠木人工林, 生物量, 碳含量, 净生产量, 碳贮量

Abstract:

The biomass, carbon content, carbon storage and their vertical distribution were measured in 32-year old artificial stand of Phoebe bourmei. The results showed: The mean biomass is 174.33 t\5hm-2, in which the arber layer is 166.73 t\5hm-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\5g-1, respectively. The mean carbon content of soil which reduces gradually with the depth is 0013 9 gC\5g-1. The total carbon storage of P. bourmei stand ecosystem, is 227.59 t\5hm-2, is devided into soil layer (0~80 cm) accounting for 58.40% (133.88 t\5hm-2), tree layer accounting for 40.13% (91.33 t\5hm-2 ), herb accounting for 0.76% (1.71 t\5hm-2 ), litter accounting for 0.29% (0.66 t\5hm-2 ), litchen accounting for 0.28% (063 t\5hm-2 ) and shrub accounting for 0.17% (038 t\5hm-2 ). The tree layer productiong is 6669 1 t\5hm-2 a-1  which accounts for 77.62% of the mean net production (8.570 6 t\5hm-2 a-1). The tree layer sequestration is 3573 6 t·hm-2a-1 which accounts for 84.01% of the mean annual carbon sequestration (4.253 6 t·hm-2 a-1).

Key words: Phoebe bourmei artificial stand, biomass, carbon content, net primary productivity, carbon storage