| 溶解有机碳在混合水中的行为研究 |
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| 引用本文： | 谭丽菊,王江涛,付强.溶解有机碳在混合水中的行为研究[J].中国海洋大学学报(自然科学版),2007,37(5):811-814. |
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| 作者姓名： | 谭丽菊 王江涛 付强 |
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| 作者单位： | 1. 中国海洋大学海洋化学理论与工程技术教育部重点实验室,山东,青岛,266003
2. 中科院环境生态研究中心,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国际科技合作项目 |
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| 摘 要： | 研究溶解有机碳(DOC)在海水和黄河水所组成的混合水中的迁移转化行为,结果表明,海水和已过滤黄河水混合时,DOC呈近似的保守性;海水与未过滤的黄河水混合时,DOC呈明显的非保守性。通过研究沉积物对DOC的解吸过程,发现沉积物在盐水中能解吸出DOC,随着盐度的增大,其解吸量也迅速增大。因此可以认为,DOC在河口区的非保守行为是DOC的絮凝和颗粒物的解吸共同作用的结果。
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| 关 键 词： | 溶解有机碳(DOC) 保守行为 海水 混合水 |
| 文章编号： | 1672-5174（2007）05-811-04 |
| 修稿时间： | 2006-09-28 |
The Behavior of Dissolved Organic Carbon(DOC) in Mixtures of Freshwater and Seawater |
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| TAN Li-Ju,WANG Jiang-Tao,FU Qiang.The Behavior of Dissolved Organic Carbon(DOC) in Mixtures of Freshwater and Seawater[J].Periodical of Ocean University of China,2007,37(5):811-814. |
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| Authors: | TAN Li-Ju WANG Jiang-Tao FU Qiang |
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| Institution: | 1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266003, China; 2. Research Center for Eao-Enuironmental Sciences Chinese Acadlemy of Sciences, Beijing 100084, China |
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| Abstract: | The behavior of dissolved organic carbon(DOC)in mixtures of freshwater and seawater was studied by a simulation experiment.The results show that DOC is nearly conservative in mixtures of seawater and filtrated river water.On the contrary,DOC shows a nonconservative property in mixtures of seawater and unfiltrated river water.The variation of DOC may be caused by the conglomeration or dissolution of dissolved organic matter from particulate matter.The dissolve process of DOC from particulate matter was studied using sediments collected from the South China Sea,and the results show that DOC can be separated out from particles and the quantity increases with salinity. |
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| Keywords: | dissolved organic carbon(DOC) behavior seawater mixed water |
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