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根据1986年8月“中美联合黄河口沉积动力学调查”第二航次的调查资料,研究黄河口及邻近海域表层沉积物中叶绿素—a及其降解产物—脱镁叶绿酸—a和有机质的含量与分布,指出(0—10)cm层中叶绿素—a的含量范围为0.18～2.83μg/g,平均含量为0.78μg/g。脱镁叶绿酸—a的含量范围为0.43～11.36μg/g,平均含量为2.80μg/g。有机质含量范围为0.26～2.20％,平均含量为0.86％ 并讨论了影响以上含量分布与变化的环境因素。
According to the survey data of the second voyage of the Sediment Dynamics Survey of the Yellow River Estuary in August 1986, chlorophyll-a and its degradation products - pheophorbide-a and organic matter in the surface sediments of the Yellow River Estuary and its adjacent sea areas The content and distribution of chlorophyll-a in the (0-10) cm layer ranged from 0.18 to 2.83 μg / g and the average content was 0.78 μg / g. Pheophorbide-a content range of 0.43 ~ 11.36μg / g, the average content of 2.80μg / g. The content of organic matter ranged from 0.26% to 2.20% with an average content of 0.86%. The environmental factors affecting the above content distribution and changes were also discussed.