Seasonal variations of isoprene emissions from deciduous trees
文献类型：期刊论文
| 作者 | Song, WZ; Mu, YJ; Zhang, XS; Zhuang, YH |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2000 |
| 卷号 | 34期号:18页码:3027-3032 |
| 关键词 | Isoprene Emission Factors Emission Rates Diurnal Variation |
| 英文摘要 | Isoprene emission fluxes were investigated for 12 tree species in and around Beijing city. Bag-enclosure method was used to collect the air sample and GC-PID was used to directly analyze isoprene. Ginkgo and Magnolia denudata had negligible isoprene emissions, while significant emissions were observed for Platanus orientalis, Pendula loud, Populus simonii, and Salix matsudana koidz, and other remaining trees showed no sign of isoprene emission. Variations in isoprene emission with changes in light, temperature and season were investigated for Platanus orientalis and Pendula loud. Isoprene emission rates strongly depended on light, temperature and leaf age. The maximum emission rates for the two trees were observed in summer with values of about 232 and 213 mu g g(-1) dw h(-1), respectively. The measured emission fluxes were used to evaluate "Guenther" emission algorithm. The emission fluxes predicted by the algorithm were in relatively good agreement with field measurements. However, there were large differences for the calculated median emission factors during spring, summer and fall. The 25-75 percentiles span of the emission factor data sets ranged from - 33 to + 15% of the median values. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| WOS记录号 | WOS:000087361600016 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24117]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Song, WZ,Mu, YJ,Zhang, XS,et al. Seasonal variations of isoprene emissions from deciduous trees[J]. ATMOSPHERIC ENVIRONMENT,2000,34(18):3027-3032. |
| APA | Song, WZ,Mu, YJ,Zhang, XS,&Zhuang, YH.(2000).Seasonal variations of isoprene emissions from deciduous trees.ATMOSPHERIC ENVIRONMENT,34(18),3027-3032. |
| MLA | Song, WZ,et al."Seasonal variations of isoprene emissions from deciduous trees".ATMOSPHERIC ENVIRONMENT 34.18(2000):3027-3032. |
入库方式： OAI收割
来源：生态环境研究中心
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