南黄海春季海水化学要素的分布特征

本文根据１９９６年４月“中韩黄海水循环及物质通量合作研究”项目的调查资料,首次对整个南黄海海域春季海水化学要素的分布特征进行了分析和探讨。结果表明,春季南黄海南部溶解氧含量及分布订受外海暖流水所控制,而中北部则主要受生物及生化活动的影响。

Distribution features of the chemical parameters in the Southern Yellow Sea in spring

Based on the data from the spring cruise (1996) of the "China-Korea Joint Research onthe Seawater Circulation and Mass Flux in the Yellow Sea", The distribution features of thechemical parameters in the Southern Yellow Sea in spring were studied and discussed first. It ispointed out that the content and distribution of dissolved oxygen is controlled by the inflow of thewarm waters in the south, and influenced mainly by biological and bio-chemical effects in the central and north of the Sothern Yellow Sea. The nutrients in the Southern Yellow Sea in springmainly come from the inflow of the high-nutrient water of the Changjiang River estuary, the runoff along the west coast of the Korea peninsula and the recreation in the bottom water. The results also indicate that the chemical parameters are well-distributed in vertical profiles in the southand north of the Southern Yellow Sea, but in the central Yellow Sea, the values of DO, pH andchl-a are high in the upper water and low in the lower water, while the content of the nutrientsare low in the upper water and high in the lower water, because of the biological and bio-chemicaleffeets. The author also thinks that there may be up-risings of the bottom water in the centralYellow Sea.