利用2011年4月和8月的调查资料，分析讨论了春、夏季黄海、东海营养盐分布特征及影响因素。结果表明，在调查海域，春季的硅酸盐、硝酸盐的浓度较高；夏季磷酸盐、氨氮的浓度较高。受长江冲淡水影响，长江口一浙闽近海表层营养盐浓度较高，且夏季高值区向外海扩展；外海受黑潮表层水的影响营养盐浓度较低。南黄海营养盐主要受长江冲淡水、黄海冷水团、黄海暖流的共同影响，夏季形成强烈的温跃层，在底层维持着一个稳定的高盐、富营养盐的冷水团。%The horizontal and vertical distributions of nutritional salts were studied on the basis of data obtained by field observations from January to April and August, 2011 in Southern Yellow Sea and East China Sea. The concentrations of silicate and nitrate were higher and the concentrations of phosphate and ammonia were lower in spring than in summer. The high concentrations of nutrients in the surface water occurred mainly in the Changjiang diluted water area and the coastal water area of Zhejiang and Fujian. The distribution of high concentrations of nutrients was influenced by Changji- ang diluted water, and covered broader areas in summer. The main factor affecting the distribution of nutrients in the open sea was Kuroshio water. The contents of nutrients in the middle area of the Yellow Sea were high due to strong and stabi- lizing thermocline in summer.
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