Seasonal Dynamics of Mobile Carbon Supply in Quercus aquifolioides at the Upper Elevational Limit
文献类型：期刊论文
| 作者 | Zhu, Wan-Ze1 ; Cao, Min4; Wang, San-Gen5; Xiao, Wen-Fan6; Li, Mai-He2,3
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| 刊名 | PLOS ONE
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| 出版日期 | 2012-03-30 |
| 卷号 | 7期号:3页码:e34213 |
| 关键词 | alpine shrubs altitudinal limit carbon limitation growth limitation non-structural carbohydrates reserve mobilization seasonal variations starch sugars |
| ISSN号 | 1932-6203 |
| 通讯作者 | 朱万泽 |
| 合作状况 | 国际 |
| 英文摘要 | Many studies have tried to explain the physiological mechanisms of the alpine treeline phenomenon, but the debate on the alpine treeline formation remains controversial due to opposite results from different studies. The present study explored the carbon-physiology of an alpine shrub species (Quercus aquifolioides) grown at its upper elevational limit compared to lower elevations, to test whether the elevational limit of alpine shrubs (<3 m in height) are determined by carbon limitation or growth limitation. We studied the seasonal variations in non-structural carbohydrate (NSC) and its pool size in Q. aquifolioides grown at 3000 m, 3500 m, and at its elevational limit of 3950 m above sea level (a.s.l.) on Zheduo Mt., SW China. The tissue NSC concentrations along the elevational gradient varied significantly with season, reflecting the season-dependent carbon balance. The NSC levels in tissues were lowest at the beginning of the growing season, indicating that plants used the winter reserve storage for re-growth in the early spring. During the growing season, plants grown at the elevational limit did not show lower NSC concentrations compared to plants at lower elevations, but during the winter season, storage tissues, especially roots, had significantly lower NSC concentrations in plants at the elevational limit compared to lower elevations. The present results suggest the significance of winter reserve in storage tissues, which may determine the winter survival and early-spring re-growth of Q. aquifolioides shrubs at high elevation, leading to the formation of the uppermost distribution limit. This result is consistent with a recent hypothesis for the alpine treeline formation. |
| WOS标题词 | Science & Technology |
| 学科主题 | 生态学 ; 林学 |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | TEMPERATE FOREST TREES ; CARBOHYDRATE RESERVES ; GROWTH-LIMITATION ; WOODY-PLANTS ; PINUS-CEMBRA ; SCOTS PINE ; STEM PHOTOSYNTHESIS ; SINK LIMITATION ; SWISS TREELINE ; COLD-HARDINESS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000305339100137 |
| 公开日期 | 2012-12-18 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4598]  |
| 专题 | 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.Chinese Acad Sci, Inst Mt Hazard & Environm, Alpine Ecosyst Observat & Expt Stn Gongga Mt, Chengdu, Peoples R China 2.Swiss Fed Res Inst WSL, Tree Physiol Grp, Birmensdorf, Switzerland 3.Chinese Acad Sci, State Key Lab Forest & Soil Ecol, Inst Appl Ecol, Shenyang, Peoples R China 4.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla, Peoples R China 5.Southwest Univ, Coll Agron & Biotechnol, Chongqing, Peoples R China 6.Chinese Acad Forestry, State Forestry Adm, Key Lab Forest Ecol & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Wan-Ze,Cao, Min,Wang, San-Gen,et al. Seasonal Dynamics of Mobile Carbon Supply in Quercus aquifolioides at the Upper Elevational Limit[J]. PLOS ONE,2012,7(3):e34213. |
| APA | Zhu, Wan-Ze,Cao, Min,Wang, San-Gen,Xiao, Wen-Fan,&Li, Mai-He.(2012).Seasonal Dynamics of Mobile Carbon Supply in Quercus aquifolioides at the Upper Elevational Limit.PLOS ONE,7(3),e34213. |
| MLA | Zhu, Wan-Ze,et al."Seasonal Dynamics of Mobile Carbon Supply in Quercus aquifolioides at the Upper Elevational Limit".PLOS ONE 7.3(2012):e34213. |
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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