摘要
通过对钦州湾近20a来6个航次微量重金属Cu、Pb、Zn、Cd、Hg的分析研究,结果发现,该湾5种重金属元素含量具有不同的变化特点,但却具有相似的平面分布特征,高值区多出现于湾中部及外湾海域,内湾海域反而含量较低。这种分布特征的形成,主要来自陆源输入、沉积物向上覆水释放输入、生物体循环转化过程输入及沉积类型和沉积环境的影响,而该湾较强的陆源径流和潮海流等水动力过程在其中起了重要影响作用。
Based on the 6 cruises in the recent 20 a in Qinzhou Bay, the study content of the trace metals, like Cu, Pb, Zn, Cd, Hg, was carried out. The results showed that the content of the trace metals mentioned changed differently, but was characteristically similar in the plane (distribution). The high content areas were in the middle and out areas of the bay, but low content in the inner seas. Because of the environment factors, such as land-source input, the deposit up-washed releasing input, the conversing process of the biological cycle, and the type and (environment) of the sedimentation, this characteristic distribution was formed, and it was also influenced by the dynamic process of water, such as the relatively strong run-off and the tidal current in the bay.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2004年第1期29-32,共4页
Marine Environmental Science
