自然资源学报 ›› 2016, Vol. 31 ›› Issue (9): 1553-1563.doi: 10.11849/zrzyxb.20151167

• 资源评价 • 上一篇    下一篇

新疆阿尔泰山森林生态系统碳密度与碳储量估算

郑拴丽1, 2, 许文强2, *, 杨辽2, 高亚琪3, 李建军2, 王蕾3   

  1. 1. 新疆大学资源与环境科学学院,乌鲁木齐 830046;
    2. 中国科学院新疆生态与地理研究所,荒漠与绿洲生态国家重点实验室,乌鲁木齐 830011;
    3. 新疆林业科学院,乌鲁木齐 830011
  • 收稿日期:2015-10-23 修回日期:2016-03-08 出版日期:2016-09-20 发布日期:2016-09-20
  • 通讯作者: 许文强(1979- ),男,甘肃人,博士,副研究员,主要从事碳循环研究。E-mail: xuwq@ms.xjb.ac.cn
  • 作者简介:郑拴丽(1990- ),女,山东人,硕士研究生,研究方向为干旱区碳循环。E-mail: zsl900615@163.com
  • 基金资助:
    中国科学院战略性先导科技专项(XDA05050202); 国家自然科学基金项目(41271323)

Carbon Density and Storage of Forest Ecosystem in Altay Mountains, Xinjiang

ZHENG Shuan-li1, 2, XU Wen-qiang2, YANG Liao2, GAO Ya-qi3, LI Jian-jun2, WANG Lei3   

  1. 1. College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;
    2. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;
    3. Xinjiang Academy of Forestry Sciences, Urumqi 830011, China
  • Received:2015-10-23 Revised:2016-03-08 Online:2016-09-20 Published:2016-09-20
  • Supported by:
    Strategic Priority Research Program of the Chinese Academy of Sciences, No.XDA05050202; National Natural Science Foundation of China, No.41271323

摘要: 为科学评估新疆森林碳汇功能提供更准确的基础数据,论文基于在阿尔泰山布设的35个样地实测数据,参考2011年新疆森林资源清查资料,研究了我国境内阿尔泰山森林生态系统碳储量、碳密度及其空间分布特征。结果表明:1)阿尔泰山森林生态系统平均生物量为126.67 t·hm-2,各组分生物量大小排序为:乔木层(120.84 t·hm-2)>草本层(4.22 t·hm-2)>凋落物层(1.61 t·hm-2),乔木各器官中,干、根、叶和枝分别占乔木生物量的50%、22%、16%和12%,干所占比例最大;林龄对植被生物量影响显著,生物量随林龄的增长而增加;2)生物量平均含碳率在0.40~0.53范围内,各组分、乔木各器官含碳率均不同,且林龄对含碳率影响显著;3)阿尔泰山森林生态系统碳密度为205.72 t·hm-2,碳储量为131.35 Tg,其中土壤层、乔木层、草本层和凋落物层碳储量分别为86.67、43.09、1.03、0.56 Tg,土壤层和乔木层碳储量分别占阿尔泰山森林生态系统总碳储量的66%和33%,构成阿尔泰山森林生态系统的主要碳储存库;不同龄级的碳储量表现为成熟林最大,过熟林次之,两者合计占生态系统总碳储量的61%;4)阿尔泰山森林生态系统碳密度整体呈南高北低分布,是由西北—东南不同的环境因子影响所致。

关键词: 生物量, 碳储量, 碳密度, 样地调查

Abstract: To provide more accurate basic data for scientific assessments on the carbon sink function of forest in Xinjiang, this paper studied the carbon storage and density of forest ecosystem in Altay Mountains and their distribution pattern based on field investigation and forest resources inventory. The results showed that: The biomass of forest ecosystem was 126.67 t·hm-2, and the biomass of each component was in the order as arbor layer (120.84 t·hm-2), grass layer (4.22 t·hm-2) and litter fall layer (1.61 t·hm-2). The biomass in trunk, root, leaf and branche of arbor accounted for 50%, 22%, 16% and 12% of the total, respectively. The vegetation biomass had significant relation with the age of the forest, and increased with the increase of forest age. The carbon content ranged from 0.40 to 0.53, which also had significant relation with forest age. The carbon density and storage of the forest ecosystem were 205.72 t·hm-2 and 131.35 Tg. The carbon storages of soil layer, arbor layer, grass layer and litter fall layer were 86.67, 43.09, 1.03 and 0.56 Tg, respectively. Soil layer and arbor layer were the main carbon sink of Altai forest ecosystem, which accounted for 66% and 33% of the total, respectively. From the age groups point of view, the highest carbon storage was in mature forest, and the storage in over-mature forest took the second place which accounted for 61% of total carbon. The carbon density of the forest ecosystems was higher in southern area than in northern area due to the environmental factors.

Key words: biomass, carbon density, carbon storage, investigation samples

中图分类号: 

  • S718.5