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根据2006年7至8月(夏季)和2007年1月(冬季)对北黄海海域2个航次的调查资料,分析并讨论了北黄海冬、夏季生源要素的平面分布特征。结果表明:(1)在北黄海,夏季生源要素的浓度普遍较低,PO4-P、DIN、SiO3-Si以及DO的整体平均值分别为0.20,3.25,4.45μmol/dm3和8.12 mg/dm3;而在冬季它们的浓度则有很大提高,整体平均值分别是夏季的2.80,2.46,2.77和1.20倍。(2)夏季,表层营养盐浓度近岸远高于远岸,底层在黄海冷水团盘踞区为高值,DO的分布也与之类似;冬季,DIN与PO4-P分布相似,SiO3-Si和DO则各有其独特性。
Based on the survey data of two voyages in the North Yellow Sea from July to August in 2006 (summer) and January 2007 (in winter), we analyzed and discussed the distribution features of winter and summer ground source elements in North Yellow Sea. The results showed that: (1) In the North Yellow Sea, the concentration of biogenic elements in summer was generally low, the average values of PO4-P, DIN, SiO3-Si and DO were 0.20,3.25,4.45μmol / dm3 and 8.12 mg / dm3, In the winter, their concentrations have greatly improved, the overall average of 2.80,2.46,2.77 and 1.20 times the summer, respectively. (2) In summer, the concentration of surface nutrients is much higher than that of the far shore, and the bottom is high in the enthalpy of the Yellow Sea cold water mass. The distribution of DO is also similar. In winter, the distribution of DIN and PO4-P are similar. DO has its own uniqueness.