Sensitive indicators of Stipa bungeana response to precipitation under ambient and elevated CO2 concentration
文献类型：期刊论文
| 作者 | Shi, Yaohui; Zhou, Guangsheng; Jiang, Yanling1; Wang, Hui1; Xu, Zhenzhu1
|
| 刊名 | INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 62期号:2页码:141-151 |
| 关键词 | Drought indicator Elevated CO2 Gray relational analysis Plasticity index Threshold |
| ISSN号 | 0020-7128 |
| DOI | 10.1007/s00484-017-1434-x |
| 文献子类 | Article |
| 英文摘要 | Precipitation is a primary environmental factor in the semiarid grasslands of northern China. With increased concentrations of atmospheric greenhouse gases, precipitation regimes will change, and high-impact weather events may be more common. Currently, many ecophysiological indicators are known to reflect drought conditions, but these indicators vary greatly among species, and few studies focus on the applicability of these drought indicators under high CO2 conditions. In this study, five precipitation levels (- 30%, - 15%, control, + 15%, and + 30%) were used to simulate the effects of precipitation change on 18 ecophysiological characteristics in Stipa bungeana, including leaf area, plant height, leaf nitrogen (N), and chlorophyll content, among others. Two levels of CO2 concentration (ambient, 390 ppm; 550 ppm) were used to simulate the effects of elevated CO2 on these drought indicators. Using gray relational analysis and phenotypic plasticity analysis, we found that total leaf area or leaf number (morphology), leaf water potential or leaf water content (physiology), and aboveground biomass better reflected the water status of S. bungeana under ambient and elevated CO2 than the 13 other analyzed variables. The sensitivity of drought indicators changed under the elevated CO2 condition. By quantifying the relationship between precipitation and the five most sensitive indicators, we found that the thresholds of precipitation decreased under elevated CO2 concentration. These results will be useful for objective monitoring and assessment of the occurrence and development of drought events in S. bungeana grasslands. |
| 学科主题 | Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology |
| 出版地 | NEW YORK |
| 电子版国际标准刊号 | 1432-1254 |
| WOS关键词 | CARBON-DIOXIDE ; WATER RELATIONS ; LOESS PLATEAU ; DROUGHT ; TRAITS ; STRESS ; TOLERANCE ; GROWTH ; CHINA ; PHOTOSYNTHESIS |
| 语种 | 英语 |
| WOS记录号 | WOS:000423319100001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31661143028] ; China Special Fund for Meteorological Research in the Public Interest (Major projects) [GYHY201506001-3] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20670]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Yaohui,Zhou, Guangsheng,Jiang, Yanling,et al. Sensitive indicators of Stipa bungeana response to precipitation under ambient and elevated CO2 concentration[J]. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,2018,62(2):141-151. |
| APA | Shi, Yaohui,Zhou, Guangsheng,Jiang, Yanling,Wang, Hui,&Xu, Zhenzhu.(2018).Sensitive indicators of Stipa bungeana response to precipitation under ambient and elevated CO2 concentration.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,62(2),141-151. |
| MLA | Shi, Yaohui,et al."Sensitive indicators of Stipa bungeana response to precipitation under ambient and elevated CO2 concentration".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 62.2(2018):141-151. |
入库方式： OAI收割
来源：植物研究所
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