薛亮,张龙军

• 1:中国海洋大学海洋环境与生态教育部重点实验室
• 2:国家海洋局第一海洋研究所

摘要(Abstract)：

基于在2006年夏季北黄海收集的的高分辨率的表层CO2分压(pCO2)数据,结合水文和生物地球化学同步观测参数,探讨了夏季北黄海pCO2空间分布的控制因素。结果表明,夏季北黄海与大多数中低纬度陆架海类似,由于水温较高,表层pCO2较高(平均值为(463±41)μatm),整个海域相对大气CO2过饱和。表层pCO2分布具有明显的区域差异,辽南和鲁北近岸海域pCO2明显高于中部区域,辽南近岸的高pCO2主要与河流输入和水产养殖引起的生物好氧呼吸有关,而鲁北沿岸的高pCO2主要与烟台近岸的底层冷水涌升及由混合引起的高碳酸盐含量的黄河泥沙的再悬浮有关;在海区中部大部分水域,pCO2与温度之间有较好的相关性,说明温度是这一区域pCO2分布较为重要的控制因子。另外,采用Wannikhof的海-气气体交换系数估计了北黄海夏季海-气CO2通量,结果表明整个北黄海是大气CO2的源,平均释放速率为(4.00±0.57)mmol.m-2.d-1,高于南黄海夏季海-气CO2通量。

关键词(KeyWords)： 表层pCO2;控制因素;海-气CO2通量;北黄海

Abstract:

Keywords:

基金项目(Foundation): 国家908专项(908-01-ST02)资助

作者(Author): 薛亮,张龙军

DOI: 10.16441/j.cnki.hdxb.2011.12.004

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