Knowledge Management System of Kunming Institute of Botany,CAS
| Elevation-specific responses of phenology in evergreen oaks from their low-dry to their extreme high-cold range limits in the SE Himalaya | |
Wang,Song-Wei; He,Xiao-Fang; Chen,Jian-Guo; Sun,Hang ; Koerner,Christian; Yang,Yang
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| 2021 | |
| 发表期刊 | ALPINE BOTANY
 |
| ISSN | 1664-2201 |
| 卷号 | 131期号:1页码:89-102 |
| 摘要 | While the high elevation limit of trees is commonly related to low temperature, the rear edge of their distribution is often associated with drought. Here we explore phenology traits that contribute to a mechanistic explanation of both these edges of the fundamental niche in the broad leaved evergreen Quercus pannosa s.l. Populations of this species reach a drought limit (DL) at 2510 m in the semi-arid upper Yangtze valley, and a cold limit (CL) at 4270 m, very close to the conifer treeline, within a short geographical distance. Trees reach a height of only 4-7 m at both climatic limits, and > 30 m height at optimum site (OS) at 3440 m. At OS, flushing starts in mid-May and at the summer solstice at CL (after late frosts end), suggesting a photoperiod control. At DL, oak phenology tracks the (irregular) arrival of the monsoon. Shoots and leaves grew fastest and for the shortest period at DL, and slowest at CL, in both cases forming 4-7 cm long new shoots per year, contrasted by 12-13 cm a(-1) at OS. Maturation of leaves (length and specific leaf area, SLA) was again fastest at DL, followed by CL and slowest at OS, with a much longer shoot growth duration per year and bigger leaves. We conclude that the period favorable for growth and maturation was more than halved at both range limits (by frost or drought) compared to the optimum site, pointing at a common range restriction by the duration of the growing season. |
| 关键词 | Drought Low temperature Leaf traits Growth Mountain Niche boundary Quercus BUD-BURST LOW-TEMPERATURE TREE PHENOLOGY LEAF PHENOLOGY SPRING FROST SESSILE OAK GROWTH QUERCUS POPULATIONS DROUGHT |
| DOI | 10.1007/s00035-020-00245-4 |
| WOS记录号 | WOS:000607327700001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/73287 |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.[Wang, Song-Wei 2.He, Xiao-Fang 3.Chen, Jian-Guo 4.Sun, Hang 5.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Yunnan, Peoples R China 6.Univ Chinese Acad Sci, Beijing, Peoples R China 7.Univ Basel, Inst Bot, Schonbeinstr 6, CH-4056 Basel, Switzerland |
| 推荐引用方式 GB/T 7714 | Wang,Song-Wei,He,Xiao-Fang,Chen,Jian-Guo,et al. Elevation-specific responses of phenology in evergreen oaks from their low-dry to their extreme high-cold range limits in the SE Himalaya[J]. ALPINE BOTANY,2021,131(1):89-102. |
| APA | Wang,Song-Wei,He,Xiao-Fang,Chen,Jian-Guo,Sun,Hang,Koerner,Christian,&Yang,Yang.(2021).Elevation-specific responses of phenology in evergreen oaks from their low-dry to their extreme high-cold range limits in the SE Himalaya.ALPINE BOTANY,131(1),89-102. |
| MLA | Wang,Song-Wei,et al."Elevation-specific responses of phenology in evergreen oaks from their low-dry to their extreme high-cold range limits in the SE Himalaya".ALPINE BOTANY 131.1(2021):89-102. |
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