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植物研究 ›› 2014, Vol. 34 ›› Issue (4): 554-560.doi: 10.7525/j.issn.1673-5102.2014.04.021

• 论文 • 上一篇    下一篇

长白落叶松人工林乔木层生物量分布特征及其固碳能力研究

王霓虹;高萌;李丹   

  1. 东北林业大学,哈尔滨 150040
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2014-07-20 发布日期:2014-07-20
  • 基金资助:
     

Tree Layer Biomass Distribution and Carbon Storage Capacity of Larix olgensis Plantation

WANG Ni-Hong;GAO Meng;LI Dan   

  1. Northeast Forestry University,Harbin 150040
  • Received:1900-01-01 Revised:1900-01-01 Online:2014-07-20 Published:2014-07-20
  • Supported by:
     

摘要: 基于8~56 a长白落叶松人工林样地生物量调查数据,建立了长白落叶松林各器官生物量模型,探讨了不同林龄长白落叶松人工林干材、树皮、树枝、树叶、树根的生物量分布与变化规律及单木与林分乔木层的固碳能力。结果表明:随着林龄的增大,长白落叶松人工林林木及各器官生物量均呈现不同程度的增加趋势,单株木生物量由8 时的0.174 g增加至56 a时的328.196 kg,林分乔木层生物量由8 a时的0.519 t·hm-2增加至56 a时的251.39 t·hm-2,其中树干所占比例最大,且增幅最大。长白落叶松人工林单木平均碳储量为74.822 kg,56 a林分乔木层碳密度为130.455 t·hm-2,平均碳密度达63.113 t·hm-2,各器官碳储量变化规律明显。长白落叶松人工林幼龄林、中龄林、近熟林、成熟林林分乔木层的年平均固碳量分别为0.087、1.193、1.703、2.124 t·hm-2,固碳量年平均增长率排序为中龄林>幼龄林>成熟林>近熟林。研究认为,长白落叶松人工林单株木及林分各器官生物量随林龄增加具有明显的变化规律,成熟林分固碳水平最高,中龄林分后期固碳潜力最大。

关键词: 长白落叶松, 人工林, 生物量, 碳储量, 固碳能力

Abstract: With the biomass data of Larix olgensis plantations of 8-56 years, we built the organic biomass model, and discussed the distribution and change rules of biomass in bole, bark, branches, leaves and root as well as the carbon storage capacity of tree layer. The organic biomass of individual wood and stand had a certain trend to increase with the increase of forest age, the biomass of individual wood increased from 0.714 kg in 8 years to 328.196 kg in 56 years, and the biomass increased from 0.519 t·hm-2 in 8 years to 251.39 t·hm-2 in 56 years. The trunk took the largest percentage and amplification. The average carbon storage of individual wood was 74.822 kg, the carbon density of stand in 56 years was 130.455 t·hm-2 with the average value of 63.113 t·hm-2, and the carbon storage in each organ had obvious change rule. The average annual carbon storage of juvenile, middle-aged, near-mature and mature stand were 0.087, 1.193, 1.703 and 2.124 t·hm-2, respectively. The average annual growth rate order from big to small is middle-aged stand, juvenile stand, mature stand and nearmature stand. Therefore, the organic biomass of individual wood and stand of L.olgensis plantations has an obvious change rule with the increasing of forest age, the mature stand has the highest carbon storage level, and the middle-aged stand has the largest potential carbon storage ability.

Key words: Larix olgensis, forest plantations, biomass, carbon storage, carbon storage ability

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