Fully exposed canopy tree and liana branches in a tropical forest differ in mechanical traits but are similar in hydraulic traits
文献类型：期刊论文
| 作者 | Zhang, Lan3; Chen, Yajun2,4; Ma, Keping3 ; Bongers, Frans; Sterck, Frank J.
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| 刊名 | TREE PHYSIOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 39期号:10页码:1713-1724 |
| 关键词 | anatomy canopy hydraulic conductivity hydraulic safety mechanical safety trade-off |
| ISSN号 | 0829-318X |
| DOI | 10.1093/treephys/tpz070 |
| 文献子类 | Article |
| 英文摘要 | Large lianas and trees in the forest canopy are challenged by hydraulic and mechanical failures and need to balance hydraulic conductivity, hydraulic safety and mechanical safety. Our study integrates these functions in canopy branches to understand the performance of canopy trees and lianas, and their difference. We sampled and measured branches from 22 species at a canopy crane in the tropical forest at Xishuangbanna, SW China. We quantified the hydraulic conductivity from the xylem-specific hydraulic conductivity (K-S), hydraulic safety from the cavitation resistance (P-50) and mechanical safety from the modulus of rupture (MOR) to evaluate trade-offs and differences between lianas and trees. We also measured a number of anatomical features that may influence these three functional traits. Our results suggest the following: trade-offs between hydraulic conductivity, hydraulic safety and mechanical safety are weak or absent; liana branches better resist external mechanical forces (higher MOR) than tree branches; and liana and tree branches were similar in hydraulic performance (K-S and P-50). The anatomical features underlying K-S, P-50 and MOR may differ between lianas and trees. We conclude that canopy branches of lianas and trees diverged in mechanical design due to fundamental differences in wood formation, but converged in hydraulic design. |
| 学科主题 | Forestry |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1758-4469 |
| WOS关键词 | LIFE-HISTORY VARIATION ; CAVITATION RESISTANCE ; WATER-STRESS ; POISON OAK ; WOOD STRUCTURE ; WEAK TRADEOFF ; XYLEM SAFETY ; EFFICIENCY ; STEMS ; VULNERABILITY |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000509482600006 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Stichting Het Kronendak Canopy Grant [16-007] ; Youth Innovation Promotion Association [2016351] ; 'Light of West China' Program of CAS ; CAS 135 program [2017XTBG-T01, 2017XTBG-F01] ; Koninklijke Nederlandse Akademie van Wetenschappen Chinese Exchange Program [5305CDP20] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19860]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Yuanjiang Savanna Ecosyst Res Stn, Yuanjiang 666303, Yunnan, Peoples R China 2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Forest Ecol, Mengla 666303, Yunnan, Peoples R China 3.[Zhang, Lan; Bongers, Frans; Sterck, Frank J.] Wageningen Univ & Res Ctr, Forest Ecol & Forest Management Grp, POB 47, NL-6700 AA Wageningen, Netherlands 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lan,Chen, Yajun,Ma, Keping,et al. Fully exposed canopy tree and liana branches in a tropical forest differ in mechanical traits but are similar in hydraulic traits[J]. TREE PHYSIOLOGY,2019,39(10):1713-1724. |
| APA | Zhang, Lan,Chen, Yajun,Ma, Keping,Bongers, Frans,&Sterck, Frank J..(2019).Fully exposed canopy tree and liana branches in a tropical forest differ in mechanical traits but are similar in hydraulic traits.TREE PHYSIOLOGY,39(10),1713-1724. |
| MLA | Zhang, Lan,et al."Fully exposed canopy tree and liana branches in a tropical forest differ in mechanical traits but are similar in hydraulic traits".TREE PHYSIOLOGY 39.10(2019):1713-1724. |
入库方式： OAI收割
来源：植物研究所
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