DOI: 10.1016/j.foreco.2014.06.023
Scopus记录号: 2-s2.0-84904470572
论文题名: Variations in the live biomass and carbon pools of Abies georgei along an elevation gradient on the Tibetan Plateau, China
作者: Wang G. ; Ran F. ; Chang R. ; Yang Y. ; Luo J. ; Jianrong F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 329 起始页码: 255
结束页码: 263
语种: 英语
英文关键词: Carbon pool
; Elevation
; Live biomass
; Root:shoot ratio
; Temperate montane forest
; Tibetan Plateau
Scopus关键词: Forestry
; Lakes
; Carbon pool
; Elevation
; Root: shoot ratios
; Temperate montane forest
; Tibetan Plateau
; Biomass
; biomass
; biomass allocation
; carbon budget
; coniferous forest
; elevation
; montane forest
; nitrogen
; nutrient limitation
; root-shoot ratio
; spatial distribution
; temperate forest
; temperature effect
; Biomass
; Forests
; Lakes
; Temperature
; China
; Qinghai-Xizang Plateau
英文摘要: The spatial distribution of montane forest biomass and C pools along altitudinal gradients and the role of the climate gradient on the Tibetan Plateau are not well-understood. To determine how live biomass and C pools in montane forests vary along an elevation gradient, the biomass and C content of fir trees (Abies georgei), the most widespread forest type on the Tibetan Plateau, were measured from 3100. m. asl to 4400. m. asl. The total live biomass of the forest nonlinearly declined by 66.2% with the elevation gradient, with most of the biomass reduction (covering almost 94% of the total reduction) occurring at altitudes lower than 3400. m. asl and at altitudes above 3900. m. asl, and the C concentration of the aboveground components (stems, leaves and branches) of A. georgei were positively correlated with the biomass variation along an elevation gradient. The total C pool of A. georgei (stand and root C) decreased from 259.73 ± 11.75. t. C/ha at 3100. m. asl to 87.29 ± 8.21. t. C/ha at 4300. m. asl, whereas the biomass C pool allocation in the roots increased by 2.5% at the same altitude. A possible explanation for these marked shifts in the biomass and C allocation from above to belowground along an increasing elevation gradient is discussed, including the limitation of the N supply and the effect of lower temperatures. The annual air temperature and precipitation were positively correlated with the live biomass and C stocks along an elevation gradient. The live biomass C is allocated more to aboveground components with increasing temperature and precipitation. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65827
Appears in Collections: 影响、适应和脆弱性
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作者单位: Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
Recommended Citation:
Wang G.,Ran F.,Chang R.,et al. Variations in the live biomass and carbon pools of Abies georgei along an elevation gradient on the Tibetan Plateau, China[J]. Forest Ecology and Management,2014-01-01,329