| 春季南海溶存N_2O的分布特征和海气交换通量 |
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| 引用本文： | 郑立晓,张桂玲,许洁,张峰,张经.春季南海溶存N_2O的分布特征和海气交换通量[J].海洋环境科学,2009,28(3). |
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| 作者姓名： | 郑立晓 张桂玲 许洁 张峰 张经 |
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| 作者单位： | 1. 中国海洋大学,海洋化学理论与工程技术教育部重点实验室,山东,青岛,266100
2. 华东师范大学,河口海岸国家重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金重大项目，国家自然科学基金青年基金 |
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| 摘 要： | 2005年4月28日至5月11日在南海北部进行了调查,测定了南海不同深度海水中溶解N2O的浓度.结果表明,表层海水中的N2O浓度范围在5.17～14.9 nmol/L,饱和度范围为90.4%～236.3%,除个别站位外,表层水体中N2O均处于过饱和状态,是大气中N2O的净源.在研究海域陆架-陆坡站位和海盆区站位N2O的垂直分布有一共同特点:透光层海水中N2O垂直混合较为均匀.利用Liss和Merlivat公式(LM86)以及Wanninkhof公式(W92)分别计算了南海N2O海-气交换通量,结果为-0.57～32.93 μmol/m2·d和-1.1～53.51 μmol/m2*d,此外,我们还估算了南海对大气N2O的贡献为0.15～0.24 Tg/a,要远高于开阔大洋.
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| 关 键 词： | 南海 分布 海-气交换通量 |
Distribution and Air-Sea Fluxes of N_2O in South China Sea in Spring |
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| ZHENG Li-xiao,ZHANG Gui-ling,XU Jie,ZHANG Feng,ZHANG Jing.Distribution and Air-Sea Fluxes of N_2O in South China Sea in Spring[J].Marine Environmental Science,2009,28(3). |
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| Authors: | ZHENG Li-xiao ZHANG Gui-ling XU Jie ZHANG Feng ZHANG Jing |
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| Institution: | 1.Key Laboratory of Marine Chemistry Theory and Technology;Ministry of Education;Ocean University of China;Qingdao 266100;China;2.State Key Laboratory of Estuarine and Coastal Research;East China Normal University;Shanghai 200062;China |
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| Abstract: | The concentrations of dissolved nitrous oxide in the seawater at different depths were investigated in the north South China Sea during Apr.28~May 11,2005.The results showed that the N2O concentrations in the surface water ranged between 5.17 and 14.9 nmol/L,with saturations range between 90.4% ~ 236.3%.All of surface seawater was saturated with N2O except a few stations.It showed that this area was a source of N2O which release N2O into the atmosphere.In the continental shelf-slope and basin stations the v... |
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| Keywords: | N2O |
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