本文利用2013年11月黄渤海海域航次采集的海水样品,对该海域有色溶解有机物(CDOM)、营养盐等的组成、来源、分布特征和主要环境影响因子进行了分析研究.通过三维荧光光谱-平行因子分析法(EEMs-PARAFAC)对CDOM进行分析,共鉴别出2类4种荧光组分:类腐殖质组分C1(325/410 nm)、C2(275,370/435 nm)、C3(270,395/495 nm)和类蛋白质组分C4(290/340 nm).3种类腐殖质组分在黄渤海海域各层的平面分布均为由近岸向远岸逐渐递减.黄海表层和渤海中层类蛋白质组分荧光强度在近岸和远岸海域均出现极大值,而其在渤海表底层及黄海中底层的分布呈现由近岸到远岸逐渐降低的趋势.各层CDOM高值区主要分布在近岸海域.渤海表层溶解无机氮(DIN)和溶解有机氮(DON)浓度高于底层浓度,底层溶解无机磷(DIP)浓度高于表层浓度.渤海DIN呈现由近岸到远岸逐渐降低的趋势,DIP由曹妃甸近岸海域及中部海域的高值区向北部、东部和南部海域逐渐降低的趋势,DON则呈现由渤海中部偏南海域的高值区向四周逐渐递减的趋势.黄海底层DIN和DIP浓度高于表层,而表层DON浓度最高.黄海表中层DIN和DIP呈现由近岸到远岸逐渐降低的趋势,底层DIN和DIP则呈现由近岸到远岸逐渐增加的趋势,DON呈现由近岸到远岸逐渐降低的趋势.渤海DIN、DON和DIP的总体浓度均高于黄海.将4种荧光组分(C1~C4)、吸收系数(a_(355))、溶解有机碳(DOC)与叶绿素a(Chl-a)、盐度(S)、溶解氧(DO)、DIN、DON、DIP进行冗余分析,结果表明黄渤海各荧光组分(C1~C4)主要受陆源输入的影响,DOC受陆源与海源的共同影响,但陆源影响较大.渤海DIN受陆源输入的影响较大,而DON受海源影响较大;黄海DIN受陆源和海源共同影响,而DON主要受陆源输入影响.黄渤海DIP均受陆源和海源共同影响. In this paper, the composition, origin, distribution characteristics and major environmental impact factors of CDOM, nutrients and so on in this area were analyzed by using seawater samples collected from the Yellow Sea and Bohai Sea voyage in November 2013. Three-dimensional fluorescence spectroscopy- CDOM was analyzed by parallel factor analysis (EEMs-PARAFAC), and two kinds of four kinds of fluorescence components were identified: type humic component C1 (325/410 nm), C2 (275,370/435 nm), C3 (270,395/495 nm and class protein C4 (290/340 nm). The distribution of the three types of humus components in the Yellow Sea and the Bohai Sea decreased gradually from nearshore to the far shore.The fluorescence of the middle-class protein components in the Yellow Sea surface and Bohai Sea The intensity shows a maximum value in the nearshore and the far offshore area, while the distribution in the bottom of the Bohai Sea surface and the bottom of the Yellow Sea shows a decreasing trend from nearshore to the far shore.The high value areas of CDOM in each layer are mainly distributed in the coastal area The concentrations of dissolved inorganic nitrogen (DIN) and dissolved organic nitrogen (DON) in the surface of the Bohai Sea were higher than those in the bottom and the concentration of dissolved inorganic phosphorus (DIP) in the bottom was higher than that in the surface.The trend of DIN in Bohai Sea decreased gradually from near shore to far shore, From Caofeidian coastal waters and the central waters DON decreased gradually toward the north, east and south of the sea, while DON showed a trend of decreasing gradually from the high value area in the south of Bohai Sea to the four surrounding areas.The concentrations of DIN and DIP in the bottom of the yellow sea were higher than those in the surface layer, while DON was the highest in the surface layer. DIN and DIP in the middle Yellow Sea showed a trend of decreasing from nearshore to far shore, while DIN and DIP in the bottom of the Yellow Sea showed a gradual increase from nearshore to far shore, while DON showed a decreasing trend from nearshore to far shore. , The total concentrations of DON and DIP were higher than that of the Yellow Sea. Four kinds of fluorescent components (C1 ~ C4), absorption coefficient (a_ (355)), dissolved organic carbon (DOC) and chlorophyll a (S), dissolved oxygen (DO), DIN, DON and DIP. The results show that the fluorescence components (C1 ~ C4) in Yellow Sea and Bohai Sea are mainly affected by the input of terrestrial sources. The influence of terrigenous landfall is greater in the Bohai Sea, DIN is more affected by the terrestrial input, but DON is more affected by the seawater, while the Yellow Sea DIN is jointly affected by the terrestrial and marine sources, whereas the DON is mainly affected by the terrestrial input. .