Concentration-and flux-based dose-responses of isoprene emission from poplar leaves and plants exposed to an ozone concentration gradient
文献类型：期刊论文
| 作者 | Yuan, Xiangyang; Feng, Zhaozhong; Liu, Shuo; Shang, Bo; Li, Pin; Xu, Yansen; Paoletti, Elena |
| 刊名 | PLANT CELL AND ENVIRONMENT
 |
| 出版日期 | 2017-09-01 |
| 卷号 | 40期号:9页码:1960-1971 |
| 关键词 | Aot40 O-3 Sensitivity Phytotoxic Ozone Dose Tropospheric O-3 |
| 英文摘要 | Concentration- and flux-based O-3 dose-responses of isoprene emission from single leaves and whole plants were developed. Two poplar clones differing in O-3 sensitivity were exposed to five O-3 levels in open-top chambers for 97 d: charcoal-filtered ambient air (CF), non-filtered ambient air (NF) and NF plus 20 ppb (NF + 20), 40 ppb (NF + 40) and 60 ppb (NF + 60). At both leaf and plant level, isoprene emission was significantly decreased by NF + 40 and NF + 60 for both clones. Although intra-specific variability was found when the emissions were up-scaled to the whole plant, both leaf- and plant-level emissions decreased linearly with increasing concentration-based (AOT40, cumulative exposure to hourly O-3 concentrations >40 ppb) and flux-based indices (PODY, cumulative stomatal uptake of O-3 > Y nmol O-3 m(-2) PLA s(-1)). AOT40- and POD7-based dose-responses performed equally well. The two clones responded differently to AOT40 and similarly to PODY (with a slightly higher R-2 for POD7) when the emission was expressed as change relative to clean air. We thus recommend POD7 as a large-scale risk assessment metric to estimate isoprene emission responses to O-3 in poplar. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/38976]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yuan, Xiangyang,Feng, Zhaozhong,Liu, Shuo,et al. Concentration-and flux-based dose-responses of isoprene emission from poplar leaves and plants exposed to an ozone concentration gradient[J]. PLANT CELL AND ENVIRONMENT,2017,40(9):1960-1971. |
| APA | Yuan, Xiangyang.,Feng, Zhaozhong.,Liu, Shuo.,Shang, Bo.,Li, Pin.,...&Paoletti, Elena.(2017).Concentration-and flux-based dose-responses of isoprene emission from poplar leaves and plants exposed to an ozone concentration gradient.PLANT CELL AND ENVIRONMENT,40(9),1960-1971. |
| MLA | Yuan, Xiangyang,et al."Concentration-and flux-based dose-responses of isoprene emission from poplar leaves and plants exposed to an ozone concentration gradient".PLANT CELL AND ENVIRONMENT 40.9(2017):1960-1971. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。