Different hydraulic traits of woody plants from tropical forests with contrasting soil water availability
文献类型：期刊论文
| 作者 | Zhu, Shi-Dan; Chen, Ya-Jun; Fu, Pei-Li; Cao, Kun-Fang |
| 刊名 | TREE PHYSIOLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 37期号:11页码:1469-1477 |
| 关键词 | Xylem Vulnerability Semiarid Climate Use Strategies Rain-forest Lianas Trees Cavitation Stems Tolerance Architecture |
| ISSN号 | 0829-318X |
| 英文摘要 | In southwestern China, tropical karst forests (KF) and non-karst rain forests (NKF) have different species composition and forest structure owing to contrasting soil water availability, but with a few species that occur in both forests. Plant hydraulic traits are important for understanding the species' distribution patterns in these two forest types, but related studies are rare. In this study, we investigated hydraulic conductivity, vulnerability to drought-induced cavitation and wood anatomy of 23 abundant and typical woody species from a KF and a neighboring NKF, as well as two Bauhinia liana species common to both forests. We found that the KF species tended to have higher sapwood density, smaller vessel diameter, lower specific hydraulic conductivity (k(s)) and leaf to sapwood area ratio, and were more resistant to cavitation than NKF species. Across the 23 species distinctly occurring in either KF or NKF, there was a significant tradeoff between hydraulic efficiency and safety, which might be an underlying mechanism for distributions of these species across the two forests. Interestingly, by possessing rather large and long vessels, the two Bauhinia liana species had extremely high k(s) but were also high resistance to cavitation (escaping hydraulic tradeoff). This might be partially due to their distinctly dimorphic vessels, but contribute to their wide occurrence in both forests. |
| 学科主题 | Forestry |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 公开日期 | 2017-12-15 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/10692]  |
| 专题 | 西双版纳热带植物园_植物生理生态研究组 |
| 推荐引用方式 GB/T 7714 | Zhu, Shi-Dan,Chen, Ya-Jun,Fu, Pei-Li,et al. Different hydraulic traits of woody plants from tropical forests with contrasting soil water availability[J]. TREE PHYSIOLOGY,2017,37(11):1469-1477. |
| APA | Zhu, Shi-Dan,Chen, Ya-Jun,Fu, Pei-Li,&Cao, Kun-Fang.(2017).Different hydraulic traits of woody plants from tropical forests with contrasting soil water availability.TREE PHYSIOLOGY,37(11),1469-1477. |
| MLA | Zhu, Shi-Dan,et al."Different hydraulic traits of woody plants from tropical forests with contrasting soil water availability".TREE PHYSIOLOGY 37.11(2017):1469-1477. |
入库方式： OAI收割
来源：西双版纳热带植物园
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