| 辽河口海域N2O分布特征和海气通量研究 |
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| 引用本文： | 关道明,赵化德,姚子伟.辽河口海域N2O分布特征和海气通量研究[J].海洋学报,2009,31(1):85-90. |
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| 作者姓名： | 关道明 赵化德 姚子伟 |
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| 作者单位： | 国家海洋局, 国家海洋环境监测中心海洋环境监测质量技术室, 辽宁, 大连, 116023 |
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| 摘 要： | 于2007年5月份(枯水期)和8月份(丰水期)采集辽河口区域大气样品及水样,应用气相色谱及静态顶空法测定大气及海水中溶解N2O的浓度,并计算不同站位的N2O通量。结果表明:辽河口区域水体中溶解N2O浓度存在着明显的时空变化,5月份河口区域水体中N2O浓度高于8月份,且河流段溶解N2O浓度大于近海岸海域。水中溶解N2O浓度及溶解氧浓度呈显著的负相关关系。在枯水期和丰水期,所有站位的N2O均处于过饱和状态,N2O气体从水体向大气排出,辽河口区域是大气中N2O的一个排放源。
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| 关 键 词： | 辽河口 N2O 分布 通量 |
| 收稿时间： | 2008/6/30 0:00:00 |
| 修稿时间： | 2008/11/5 0:00:00 |
The distribution and flux of nitrous oxide in the Liaohe Estuary area |
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| GUAN Dao-ming,ZHAO Hua-de and YAO Zi-wei.The distribution and flux of nitrous oxide in the Liaohe Estuary area[J].Acta Oceanologica Sinica (in Chinese),2009,31(1):85-90. |
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| Authors: | GUAN Dao-ming ZHAO Hua-de and YAO Zi-wei |
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| Affiliation: | Analysis and Measurement Division, National Marine Environmental Monitoring Center, State Oceanic Administralion, Dalian 116023, China |
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| Abstract: | The samples of air and water in the Liaohe Estuary in China were collected in spring and summer.The static head space and gas-chromatography method was employed to determine the concentrations of nitrous oxide in air and in seawater.The result showed a temporal and spatial characteristic of distribution of nitrous oxide dissolved in water.The result showed that the concentrations of dissolved nitrous oxide in water were higher in spring than that in summer.The concentrations of dissolved nitrous oxide in th... |
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| Keywords: | N2O |
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