| 春季黄、渤海中异戊二烯的浓度空间分布与海-气通量 |
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| 引用本文： | 吴英璀,李建龙,王健,张洪海,杨桂朋.春季黄、渤海中异戊二烯的浓度空间分布与海-气通量[J].中国环境科学,2018,38(3):893-899. |
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| 作者姓名： | 吴英璀 李建龙 王健 张洪海 杨桂朋 |
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| 作者单位： | 1. 中国海洋大学化学化工学院, 山东 青岛 266100;2. 青岛海洋科学与技术国家实验室, 海洋生态与环境科学功能实验室, 山东 青岛 266071 |
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| 基金项目： | 国家重点研发计划项目（2016YFA0601301）；国家自然科学基金（41306069）；中国科学院海洋研究所海洋生态与环境科学重点实验室开放基金（KLMEES201602）；中央高校基本科研业务费项目（201513049） |
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| 摘 要： | 利用吹扫捕集-气质联用方法测定了2014年5月黄海、渤海所取海水样品中异戊二烯的含量，探讨了其分布特征、海-气通量及影响因素.研究结果表明：春季黄海、渤海海域表层海水中异戊二烯的浓度范围为6.02~32.91pmol/L，（平均值±标准偏差）为（15.39±4.98）pmol/L，在黄海中部海域出现浓度高值；表层海水中异戊二烯与叶绿素a（Chl-a）浓度有一定的正相关性（R2=0.2529，n=49，P < 0.001），说明浮游植物生物量在异戊二烯生产和分布中发挥重要作用；春季黄海、渤海异戊二烯海-气通量的变化范围为0.78~192.43nmol/（m2·d），（平均值±标准偏差）为（24.08±30.11）nmol/（m2·d），表明我国陆架海区是大气异戊二烯重要的源.
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| 关 键 词： | 异戊二烯 分布特征 海-气通量 黄海 渤海 |
| 收稿时间： | 2017-08-07 |
Spatial distribution and sea-to-air flux of isoprene concentration in the Yellow Sea and the Bohai Sea in spring |
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| WU Ying-cui,LI Jian-long,WANG Jian,ZHANG Hong-hai,YANG Gui-peng.Spatial distribution and sea-to-air flux of isoprene concentration in the Yellow Sea and the Bohai Sea in spring[J].China Environmental Science,2018,38(3):893-899. |
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| Authors: | WU Ying-cui LI Jian-long WANG Jian ZHANG Hong-hai YANG Gui-peng |
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| Institution: | 1. College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China;2. Laboratory for Marine Ecology and Chemistry and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China |
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| Abstract: | Isoprene concentrations were determined by gas chromatography with mass spectrum detector (GC-MSD) coupled with purge-and-trap system to study the spatial distribution as well as sea-to-air flux and influencing factors.The results showed that the concentrations of isoprene ranged from 6.02 to 32.91pmol/L in the surface seawater of the Yellow Sea and the Bohai Sea in spring,with an average of (15.39±4.98) pmol/L.The highest concentration of isoprene was found in central Yellow Sea.A positive correlation was observed between isoprene and Chl-a concentrations (R2=0.2529,n=49,P <0.001),suggesting that phytoplankton play an important role in the production and distribution of isoprene.The sea-to-air flux ranged from 0.78 to 192.43nmol/(m2·d),with a mean value of (24.08±30.11) nmol/(m2·d).The study shows that the shelf seas of China might be an important source of isoprene. |
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| Keywords: | isoprene distribution sea-to-air flux Yellow Sea Bohai Sea |
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