Photosynthetic response of Scirpus validus and Typha orientalis to elevated temperatures in Dianchi Lake, Southwestern China
文献类型：期刊论文
| 作者 | Xu, Jun-ping; Sun, Mei; Wang, Hang; Zhang, Yun; Zhang, Xiao-tang; Tian, Kun |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 卷号 | 15期号:12页码:2666-2675 |
| 关键词 | Climate warming Aquatic plant Photosynthesis Plateau wetland Temperature |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-4853-1 |
| 文献子类 | Article |
| 英文摘要 | Understanding the effects of simulated warming on photosynthetic performance of aquatic plants may provide strong supports for predicting future dynamics of wetland ecosystems in the context of climate change. The plateau wetlands located in Yunnan province are highly sensitive to climate warming due to their high altitude and cold temperature. Here, we conducted a temperaturecontrolled experiment using two temperature manipulations (ambient temperature as the control and 2 degrees C higher than ambient temperature as the warmed treatment) to determine the photosynthetic characteristics of two lakeside dominant species (Scirpus validus Vahl and Typha orientalis C. Presl.) in Dianchi Lake. Net photosynthetic rate (P-n), stomatal conductance (G(s)), intercellular CO2 concentration (C-i), and transpiration rate of S. validus that grew under warmed treatment were all significantly higher than those under the control. G(s) and C-i of T. orientalis showed similar patterns as S. validus did. For the response curves of P-n to photosynthetic active radiation (Pn-PAR) and intercellular CO2 concentration (P-n-C-i), S. validus had higher P-n values under elevated temperatures than the control, while P-n-PAR and P-n-C-i curves of T. orientalis did not separate clearly under two temperature scenarios. Both S. validus and T. orientalis had higher maximum net photosynthetic rate, light saturation point, dark respiration rate, the maximum rate of RuBP carboxylation (V-cmax), maximum electron transport rate driving RuBP regeneration (J(max)), the ratio of V-cmax to J(max), triosephosphate utilization, and 1, 5-bishosphate carboxylase ribulose content under warmed treatment than those under the control. This study provides a preliminary step for predicting the future primary production and vegetation dynamics of plateau wetlands in Yunnan province. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000453393800009 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46365]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.12 |
| 推荐引用方式 GB/T 7714 | Xu, Jun-ping,Sun, Mei,Wang, Hang,et al. Photosynthetic response of Scirpus validus and Typha orientalis to elevated temperatures in Dianchi Lake, Southwestern China[J]. JOURNAL OF MOUNTAIN SCIENCE,15(12):2666-2675. |
| APA | Xu, Jun-ping,Sun, Mei,Wang, Hang,Zhang, Yun,Zhang, Xiao-tang,&Tian, Kun. |
| MLA | Xu, Jun-ping,et al."Photosynthetic response of Scirpus validus and Typha orientalis to elevated temperatures in Dianchi Lake, Southwestern China".JOURNAL OF MOUNTAIN SCIENCE 15.12 |
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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