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西藏高原云南松生物量模型及碳储量
Alternative TitleBiomass model and carbon storage of Pinus yunnanensis on Tibet Plateau of China
杨阳; 冉飞; 王根绪; 朱万泽; 杨燕; 周鹏
Corresponding Author冉飞
2013
Source Publication生态学杂志
ISSN1000-4890
Volume32Issue:7Pages:1674-1682
Abstract

云南松林是西藏高原亮针叶林生态系统的重要组成部分,准确估算其生态系统碳储量不但有助于弄清西藏森林生态系统固碳现状,而且可为准确估算青藏高原乃至全国森林生态系统的固碳潜力和固碳速率提供基础数据。本研究以云南松为研究对象,采用实地调查与建模相结合的方法,建立了各器官(叶、枝、干、根)与株高、胸径的生物量回归方程,并以此为基础计算了云南松幼龄林、中龄林、近熟林和成熟林生态系统的生物量和碳储量。结果表明:(1)用胸径和树高估测单株林木器官生物量的较优模型为指数模型,所建立的生物量回归方程相关性较好(R2〉0.90),估计精度较高。(2)在云南松幼龄林、中龄林、近熟林和成熟林生态系统中植被总生物量分别为(63.80±9.21)、(134.76±12.69)、(142.91±13.02)、(316.72±42.57) t·hm^-2,其中乔木层生物量分别为(49.48±10.32)、(120.57±937)、(124.70±12.92)、(304.76±32.47) t·hm^-2,灌草层生物量为(13.09±3.02)、(12.81±2.54)、(11.88±3.12)、(3.47±0.98) t·hm^-2,凋落物生物量为(1.23±0.24)、(1.38±0.31)、(0.72±0.11)、(1.13±0.39) t·hm^-2。(3)各龄级云南松林生态系统植被碳储量分别为(30.67±7.13)、(67.63±19.06)、(71.00±4.15)、(159.32±39.95) t·hm^-2,碳储量随林龄增加的变化规律明显,碳汇潜力巨大。

Other Abstract

Pinus yunnanensis forest is an important component of coniferous forest ecosystems on Tibet Plateau. To accurately estimate the carbon storage of the P. yunnanensis forest ecosystem is of significance to understand the carbon sequestration of forest ecosystems in Tibet, and also, to provide basic data for estimating the carbon sequestration potential of forest ecosystems on Tibet Plateau and in China. In this paper, an investigation was conducted on the biomass and carbon storage of the P. yunnanensis forest of different ageclasses. Based on the data from twelve sampling plots and forty seven sample trees, the biomass regression equations of each organ (leaf, branch, stem, and root) of P. yunnanensis based on tree height and diameter at breast height were established. Then, the biomass and carbon storage of young, middle age, premature, and mature P. yunnanensis forests were calculated. The results showed that the exponential model was an appropriate regression model for estimating the biomass of each organ based on the tree height and the diameter at breast height of P. yunnanensis (R2〉0.90). The total vegetation biomass of the young, middleage, premature, and mature P. yunnanensis ecosystems was (63.80±9.21), (134.76±12.69), (142.91±13.02), and (316.72±42.57) t·hm^-2, of which, the biomass of tree layer was (49.48±10.32), (120.57±9.37), (124.70±12.92), and (304.76±32.47) t·hm^-2, the biomass of shrub and herb layer was (13.09±3.02), (12.81±2.54), (11.88±3.12), and (3.47±0.98) t·hm^-2, and the biomass of litter layer was (1.23±0.24), (1.38±0.31), (0.72±0.11), and (1.13±0.39) t·hm^-2, respectively. The carbon storage of the young, middleage, premature, and mature P. yunnanensis  forost ecosystems was (30.67±7.13), (67.63±19.06), (71.00±4.15), and (159.32±39.95) t·hm^-2, respectively. The carbon storage ofthe P. yunnanensis forest increased significantly with its increasing stand age, indicating that Tibetan P. yunnanensis forest had great potential in carbon sequestration.

Keyword西藏 云南松 生物量回归方程 生物量 碳储量
Indexed ByCSCD ; 北大中文核心
Language中文
CSCD IDCSCD:4907263
Funding Organization中国科学院战性略先导科技专项(XDA05050207)
Citation statistics
Cited Times:10[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6548
Collection山地表生过程与生态调控重点实验室
Recommended Citation
GB/T 7714
杨阳,冉飞,王根绪,等. 西藏高原云南松生物量模型及碳储量[J]. 生态学杂志,2013,32(7):1674-1682.
APA 杨阳,冉飞,王根绪,朱万泽,杨燕,&周鹏.(2013).西藏高原云南松生物量模型及碳储量.生态学杂志,32(7),1674-1682.
MLA 杨阳,et al."西藏高原云南松生物量模型及碳储量".生态学杂志 32.7(2013):1674-1682.
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