Effects of elevated CO2 on Stipa baicalensis photosynthesis depend on precipitation and growth phase
文献类型：期刊论文
| 作者 | Wang, Hui1; Zhou, Guangsheng3; Jiang, Yanling; Shi, Yaohui; Xu, Zhenzhu
|
| 刊名 | ECOLOGICAL RESEARCH
 |
| 出版日期 | 2019 |
| 卷号 | 34期号:6页码:790-801 |
| 关键词 | chlorophyll fluorescence CO2 enrichment photosynthetic acclimation precipitation change Stipa baicalensis |
| ISSN号 | 0912-3814 |
| DOI | 10.1111/1440-1703.12044 |
| 文献子类 | Article |
| 英文摘要 | Elevated atmospheric CO2 concentration and simultaneous precipitation change affect plant physiology and growth either directly or indirectly. The main objective of this study was to investigate the effects of elevated CO2 and precipitation change, alone or in combination, on photosynthesis and growth in Stipa baicalensis under differential growth phases. Elevated CO2 showed a consistently significant increase in net photosynthesis rate (A(net)), water-use efficiency (WUE), leaf area and biomass. However, elevated CO2 did not mitigate the negative effects of severe drought stress. Increase of A(net) under elevated CO2 attributed to C-i in the early growth phase, but WUE and Rubisco carboxylation (V-cmax) was the main inductor in the later growth phase. Effects of elevated CO2 on S. baicalensis were closely associated with precipitation conditions, and the influence on photosynthetic capacity was also related to the growth phase. Drought significantly reduced A(net) in June and August, increased WUE in June but did not show effect in August. Precipitation enhancement was beneficial to leaf area and biomass accumulation. Elevated CO2 and enhanced precipitation in combination promoted A(net) by 158% and 93.4% in June and August, respectively; moreover, their interaction increased the total biomass by 44.4%. Our results suggested that the elevated CO2 concentration in the future might be beneficial to the growth of S. baicalensis, but elevated CO2 influence on S. baicalensis might strongly depend on precipitation conditions and the growth phase. |
| 学科主题 | Ecology |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1440-1703 |
| WOS关键词 | CARBON-DIOXIDE CONCENTRATION ; WATER-USE EFFICIENCY ; ATMOSPHERIC CO2 ; DROUGHT STRESS ; YIELD RESPONSES ; ENRICHMENT FACE ; GAS-EXCHANGE ; C-4 GRASSES ; PLANT ; TEMPERATURE |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000498899900009 |
| 出版者 | WILEY |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19397]  |
| 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, Peoples R China 2.Chinese Acad Meteorol Sci, Inst Ecol Environm & Agrometeorol, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hui,Zhou, Guangsheng,Jiang, Yanling,et al. Effects of elevated CO2 on Stipa baicalensis photosynthesis depend on precipitation and growth phase[J]. ECOLOGICAL RESEARCH,2019,34(6):790-801. |
| APA | Wang, Hui,Zhou, Guangsheng,Jiang, Yanling,Shi, Yaohui,&Xu, Zhenzhu.(2019).Effects of elevated CO2 on Stipa baicalensis photosynthesis depend on precipitation and growth phase.ECOLOGICAL RESEARCH,34(6),790-801. |
| MLA | Wang, Hui,et al."Effects of elevated CO2 on Stipa baicalensis photosynthesis depend on precipitation and growth phase".ECOLOGICAL RESEARCH 34.6(2019):790-801. |
入库方式： OAI收割
来源：植物研究所
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