Sedimentation process and high sedimentation rate position of Cu in Jiaozhou Bay

摘要

Based on investigation data on Cu in surface and bottom waters, we analyzed the horizontal and seasonal variations of Cu in waters in the bay mouth of Jiaozhou Bay, eastern China in 1984. Results showed that, the seasonal variations of Cu contents in surface and bottom waters were consist that Cu contents were higher in summer than in autumn. In spatial scale, Cu contents in surface waters determined the horizontal distributions in surface and bottom waters were consist or not. In variation scale, the variation ranges of Cu contents in surface and bottom waters were closed in generally. However, in case of Cu was absorbed by marine organism and particulate matters yet the sedimentation rate was low, the distributions of Cu in surface and bottom waters were different. In regional scale, the sedimentation rate and position of Cu in surface waters were determined by sources of Cu.