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根据2009年5月在黄、东海海域获得的表层海水中溶解无机碳(DIC)和总碱度(TA)的数据,结合现场生物、化学和水文等参数,探讨了该海域DIC的分布特征、组成情况及其影响因素。结果表明,黄、东海表层海水DIC和TA的变化范围分别为1 918.8～2 196.1μmol/L和2 127.0～2 420.7μmol/L;HCO3-、CO23-和CO2(T)占DIC的百分比分别为82.06%～92.73%、6.53%～12.60%和0.24%～0.80%,平均值分别为(90.41±1.53)%,(8.99±1.61)%和(0.60±0.083)%。研究还发现,黄、东海表层海水的DIC和TA受温度的影响较大,两者均与温度表现出明显的负相关性。此外,盐度、生物活动和环流对各参数的分布均有不同程度的影响。
Based on the data of dissolved inorganic carbon (DIC) and total alkalinity (TA) in surface seawater obtained from May 2009 in the Yellow Sea and East China Sea, the distribution characteristics of DIC in the sea area were discussed based on the biological, chemical and hydrological parameters. Composition and influential factors. The results showed that the ranges of DIC and TA in surface seawater from the Yellow Sea and East China Sea were 1 918.8 ~ 2 196.1μmol / L and 2 127.0 ~ 2 420.7μmol / L, respectively. The percentages of HCO3-, CO23- and CO2 (T) in DIC were 82.06% ~ 92.73%, 6.53% ~ 12.60% and 0.24% ~ 0.80% respectively. The average values were (90.41 ± 1.53)%, (8.99 ± 1.61)% and (0.60 ± 0.083)%, respectively. The study also found that the DIC and TA of surface seawater in the Yellow Sea and East China Sea are greatly affected by temperature, both of which show obvious negative correlation with temperature. In addition, salinity, biological activities and circulation have different degrees of influence on the distribution of each parameter.