中文摘要：

在2011年秋季对中国黄海、东海海域进行调查，采集了60个站位的海水样品（其中包括10个站位东海P垂直断面），应用紫外和荧光光谱分析对有色溶解有机物（CDOM）分布及来源进行了研究。结果表明：近岸区和开阔海区表层水CDOM吸收系数a355存在显著空间差异，吸收变化范围0．023／m～2．170／m，呈现出多中心、多来源的分布趋势。P断面由于受到长江冲淡水和黑潮的影响，CDOM垂向分布复杂，主要来源有陆源输入、沉积物再悬浮与现场生产。对P断面进行荧光研究，结果显示类蛋白质荧光团和类腐殖质荧光团在P断面各个站位都有不同程度的出现。类腐殖质中c类荧光团在各个站位每层深度都表现出较强的荧光强度，类腐殖质M类荧光团由近岸向远岸荧光强度不断增强，表明由陆源向海源过渡的完成。

英文摘要：

Seawater samples were collected at 60 stations in the Yellow Sea and the East China Sea, including 10 stations along the vertical P section in the East China Sea during 17 October -5 November 2011. Distributions and sources of Colored Dissolved Organic Matter （CDOM） were measured by UV absorption spectroscopy and fluorescence spectroscopy. The absorption coefficient of CDOM at 355 mn（ a355 ） ranged from 0. 023/m to 2. 170/m and obviously varied at inshore and offshore sites, exhibiting a multi-center and multi-source distribution pattern. P section in the East China Sea was influenced by the Yangtze River effluent and the Kuroshio wa- ters, and thus vertical distribution of CDOM appeared to be complex. Riverine input, sediment re-suspension and phytoplankton pro duction were the main sources of CDOM. According to Excitation-emission matrix spectroscopy（EEMs） in this study, humie-like and protein-like fluorophores were found at all the stations of P section, and humie-like peak C showed strong fluorescence intensity at each depth. The fluorescence intensity of peak M increased from inshore to offshore, indicating the transition from terrestrial source to marine Source,