| 摘要: |
| 海水中的悬浮体包含有机物和无机物，有机物主要为有机碎屑颗粒，例如植物碎屑、浮游生物等；无机物主要是无机碎屑矿物、粘土矿物，也有少量硅质生物骨骼。海水中无机颗粒物质能通过吸附作用，从海水中有效地富集有机溶解物质。海水中天然有机物的分布、变化与浮游生物的活动密切相关，在海洋食物链中占有重要地位，海水中的颗粒有机物是某些游泳动物和底栖动物的食物，因此，海水中有机物的存在不仅对海洋生物有一定的生态学意义，而且对海洋无机元素的存在形式和地球化学转移过程都有直接影响。
胶州湾是一个典型的半封闭海湾，平均水深7m，面积390km2，自然环境优良，水产资源丰富，因此胶州湾的生态环境、生物资源及生态系统持续发展的研究对胶州湾的综合开发利用具有十分重要的意义。胶州湾海水中悬浮体的分布与变化是胶州湾生态环境研究中的一个重要组成部分。本文根据胶州湾海水中悬浮体的定点观测资料，阐明了胶州湾海水中悬浮体平均含量的分布及其季节变化特征，分析了影响悬浮体含量变化的主要因素。 |
| 关键词: 胶州湾、悬浮体、分布及变化 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第3662号。国家重点基金资助项目，39630060号；中国科学院重大项目，KZ951-A1；中国科学院特别支持项目，KZ95T-04。 |
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| DISTRIBUTIONS AND SEASONAL VARIATIONS OF SUSPENDED MATTER IN JIAOZHOU BAY SEAWATER |
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Zhang Minghan
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Institute of Oceanology, Chinese Academy of Sciences
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| Abstract: |
| Use of data on suspended matter in Jiazhou Bay seawater from February 1994 to November 1995, February 1997 to November 1998(16 times investigation) to analyze the horizontal distributions and the seasonal variation of suspended matter showed that the content of suspended matter decreased gradually from the north of the bay to the outside the bay. The highest content of suspended matter was 20 mg/L near the mouth of the Daguhe River, high contents varied from 5 mg/L to 15 mg/L in the middle part of the bay from 3 mg/L to 5 mg/L outside the bay. The seasonal variations of suspended matter were highest in spring, lowest in summer, in-between in autumn and winter.
The horizontal distribution of suspended matter was similar to that of particulate organic carbon in the bay. Tide and wave are the main factors affecting the distributions of suspended matter. |
| Key words: Jiazhou Bay, suspended matter ,distributions and the seasonal variation |
