采用粒度分析、扫描电镜观察 (SEM)、ICP— AES分析等方法 ,得到了关于长江、黄河入海沉积物的示踪粒级以及示踪指标 ,并提出沉积物物源定量识别的非线性规划数学模型 ,进而实现了东海陆架北部表层沉积物中长江型、黄河型物质的定量估算 The particle size and tracer index of the sediments from the Yangtze River and the Yellow River into the sea were obtained by means of particle size analysis, scanning electron microscopy (SEM) and ICP-AES analysis. The nonlinear programming mathematics of quantitative identification of sediment source was proposed Model, so as to achieve the quantitative estimation of the Yangtze River and Yellow River sediments in the northern surface sediments of the East China Sea shelf