作者在 1 999年夏季的航次中 ,获得了南黄海表层海水 p CO2 的实测数据。本文结合水文、化学和生物等要素的同步观测资料 ,对影响 p CO2 分布和变化的某些重要现象进行了初步探讨。研究表明南黄海表层海水 p CO2 的分布存在较大的不均匀性 ,这是边缘海区海水中生物、物理和化学因素复合作用的结果。除长江口门外的 p CO2 高值区外 ,南黄海表层海水的 p CO2 值与叶绿素、水温大体呈负相关 ,而与海水的盐度基本上呈正相关。 In the summer of 1999, the author obtained the p CO2 data of surface seawater in the South Yellow Sea. In this paper, some important phenomena that affect the distribution and change of p CO2 are discussed with the simultaneous observation of hydrological, chemical and biological elements. Studies have shown that the distribution of p CO2 in the surface waters of the South Yellow Sea is inhomogeneous, which is the result of a combination of biological, physical and chemical factors in the seawater of the marginal seas. Except for the high p CO2 region outside the mouth of the Yangtze River, p CO2 values ​​in the surface waters of the South Yellow Sea are generally negatively correlated with chlorophyll and water temperature, and are generally positively correlated with the salinity of seawater.