IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Mobile carbohydrates in Himalayan treeline trees I. Evidence for carbon gain limitation but not for growth limitation
Li, Mai-He1,2; Xiao, Wen-Fa3; Wang, San-Gen4; Cheng, Gen-Wei2; Cherubini, Paolo1; Cai, Xiao-Hu5; Liu, Xing-Liang5; Wang, Xiao-Dan2; Zhu, Wan-Ze2
Corresponding AuthorLi, Mai-He
2008
Source PublicationTREE PHYSIOLOGY
ISSN0829-318X
EISSN1758-4469
Volume28Issue:8Pages:1287-1296
SubtypeArticle
AbstractTo test whether the altitudinal distribution of trees is determined by a carbon shortage or an insufficient sugar fraction (sugar:starch ratio) in treeline trees, we studied the status of nonstructural carbohydrates (NSC) and their components (total soluble sugars and starch) in Abies fabri (Mast.) Craib and Picea balfouriana var. hirtella Rehd. et Wils. trees along three elevational gradients, ranging from lower elevations to the alpine treeline, oil the eastern edge of the Tibetan Plateau. For comparison, we investigated a low-altitude species (Tsuga, yunnanensis (Franch.) Pritz.) which served as a warm-climate reference because it is distributed in closed montane forests below 3100 m a.s.l. in the Study area. The carbon status of T.yunnanensis responded to altitude differently from that of the treeline species. At the species level, total NSC was not consistently more abundant in treeline trees than in trees of the same species growing at lower elevations. Thus there was no consistent evidence for carbon limitation of growth in treeline trees. For the three treeline species Studied (P. balfouriana and A. fabri in Kang-Ding Valley and A. fabri in the Mo-Xi Valley), winter NSC concentrations in treeline trees were significantly lower than in lower-elevation trees of the same species, suggesting that, in winter, carbon is limited in treeline trees. However, in no case was there total overwinter depletion of NSC or its components in treeline trees. Treeline and low-altitude species had similar sugar:starch ratios of about three at their upper-elevational limits in April. We conclude that survival and growth of trees at the elevational or latitudinal climate limit depend not only oil NSC concentration in perennial tissues, but also oil the maintenance of an over-wintering sugar:starch ratio greater than three.
KeywordAltitudinal Limit Nonstructural Carbohydrates Sugar : Starch Ratio Treeline Ecology Treeline Formation Winter Hardening
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedForestry
Indexed BySCI
WOS KeywordELEVATED ATMOSPHERIC CO2 ; PINUS-CEMBRA TREES ; ALPINE TREELINE ; QUERCUS-ILEX ; SWISS TREELINE ; COLD-HARDINESS ; GAS-EXCHANGE ; SYLVESTRIS L ; PICEA-ABIES ; RED SPRUCE
Language英语
Quartile1区
TOP
WOS SubjectForestry
WOS IDWOS:000258841300015
Funding OrganizationNational Natural Science Foundation(30540039 ; Key Laboratory of Forest Ecology and Environment ; State Forestry Administration ; Chinese Academy of Forestry(CAFIFEEPYBB2007001) ; 40771071)
Citation statistics
Cited Times:89[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10539
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
Affiliation1.Swiss Fed Inst Forest Snow & Landscape Res WSL, CH-8903 Birmensdorf, Switzerland
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Chinese Acad Forestry, State Forestry Adm, Key Lab Forest Ecol & Environm, Beijing 100091, Peoples R China
4.SW Univ, Coll Agron & Biotechnol, Chongqing 400716, Peoples R China
5.Sichuan Acad Forestry, Inst Forest Ecol, Chengdu 610081, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Li, Mai-He,Xiao, Wen-Fa,Wang, San-Gen,et al. Mobile carbohydrates in Himalayan treeline trees I. Evidence for carbon gain limitation but not for growth limitation[J]. TREE PHYSIOLOGY,2008,28(8):1287-1296.
APA Li, Mai-He.,Xiao, Wen-Fa.,Wang, San-Gen.,Cheng, Gen-Wei.,Cherubini, Paolo.,...&Zhu, Wan-Ze.(2008).Mobile carbohydrates in Himalayan treeline trees I. Evidence for carbon gain limitation but not for growth limitation.TREE PHYSIOLOGY,28(8),1287-1296.
MLA Li, Mai-He,et al."Mobile carbohydrates in Himalayan treeline trees I. Evidence for carbon gain limitation but not for growth limitation".TREE PHYSIOLOGY 28.8(2008):1287-1296.
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