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Mobile carbohydrates in Himalayan treeline trees I. Evidence for carbon gain limitation but not for growth limitation
文献类型：期刊论文
| 作者 | 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
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| 刊名 | TREE PHYSIOLOGY
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| 出版日期 | 2008-08-01 |
| 卷号 | 28期号:8页码:1287-1296 |
| 关键词 | altitudinal limit nonstructural carbohydrates sugar : starch ratio treeline ecology treeline formation winter hardening |
| ISSN号 | 0829-318X |
| 通讯作者 | Li, Mai-He |
| 英文摘要 | To 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Forestry |
| 研究领域[WOS] | Forestry |
| 关键词[WOS] | ELEVATED ATMOSPHERIC CO2 ; PINUS-CEMBRA TREES ; ALPINE TREELINE ; QUERCUS-ILEX ; SWISS TREELINE ; COLD-HARDINESS ; GAS-EXCHANGE ; SYLVESTRIS L ; PICEA-ABIES ; RED SPRUCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258841300015 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10539]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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