Enhanced photosynthetic capacity by perennials in the riparian zone of the Three Gorges Reservoir Area, China
文献类型：期刊论文
| 作者 | Zhang, Aiying1; Fan, Dayong; Li, Zhaojia1; Xiong, Gaoming; Xie, Zongqiang
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| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2016 |
| 卷号 | 90页码:6-11 |
| 关键词 | Leaf traits Leaf nitrogen concentration Sink-source Stem mass ratio Photosynthetic capacity |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2016.01.075 |
| 文献子类 | Article |
| 英文摘要 | The flood-dry-flood cycle in the reservoir riparian zone (RRZ) of the Three Gorges Dam has dramatically changed the ecosystem structure and riparian vegetation. Previous field investigations have shown that perennial herbaceous species are dominant in the riparian zone. However, how perennials respond to flooding disturbance remains largely unclear. Intermediate disturbance (e.g. grazing, insect pest) can enhance photosynthesis via physiological compensation mechanism. The aim of this study is to investigate whether perennials enhance their photosynthetic capacity during dry periods and understand the mechanisms driving this. Eight species from different families in a RRZ site and a paired Upland site were chosen. We compared 12 plant traits including photosynthesis, leaf structure and nutrients, as well as soluble sugar (indicate sink-source relationship) between the two sites. Results showed that perennials in RRZ had a significant higher area-based photosynthetic capacity (A(area)) than those in Upland. Meanwhile, stomatal conductance (G(s)), leaf nitrogen concentration (LNCa) and Stem mass ratio (SMR) were also significantly higher in RRZ than Upland individuals. However, there was no sign of an unbalanced sink-source relationship in RRZ as evidenced by no difference in soluble sugar content in roots and stems between sites. The results of this study suggest that perennials have enhanced photosynthetic capacity in RRZ mainly attributed to higher LNCa and Gs but sink strength was not enhanced. These data provide insight into the ecosystem functioning of riparian areas and could be used to improve restoration practices. (C) 2016 Elsevier B.V. All rights reserved. |
| 学科主题 | Ecology ; Engineering, Environmental ; Environmental Sciences |
| 出版地 | AMSTERDAM |
| 电子版国际标准刊号 | 1872-6992 |
| WOS关键词 | CHLOROPHYLL FLUORESCENCE ; LEAF TRAITS ; PLANT ; GROWTH ; VEGETATION ; RESPONSES ; CO2 ; SUBMERGENCE ; LIGHT ; CONDUCTANCE |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000373376700002 |
| 出版者 | ELSEVIER |
| 资助机构 | Chinese Academy of SciencesChinese Academy of Sciences [KZCX2-XB3-09] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25190]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Aiying,Fan, Dayong,Li, Zhaojia,et al. Enhanced photosynthetic capacity by perennials in the riparian zone of the Three Gorges Reservoir Area, China[J]. ECOLOGICAL ENGINEERING,2016,90:6-11. |
| APA | Zhang, Aiying,Fan, Dayong,Li, Zhaojia,Xiong, Gaoming,&Xie, Zongqiang.(2016).Enhanced photosynthetic capacity by perennials in the riparian zone of the Three Gorges Reservoir Area, China.ECOLOGICAL ENGINEERING,90,6-11. |
| MLA | Zhang, Aiying,et al."Enhanced photosynthetic capacity by perennials in the riparian zone of the Three Gorges Reservoir Area, China".ECOLOGICAL ENGINEERING 90(2016):6-11. |
入库方式： OAI收割
来源：植物研究所
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