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热带海洋学报 ›› 2014, Vol. 33 ›› Issue (3): 72-78.doi: 10.11978/j.issn.1009-5470.2014.03.011cstr: 32234.14.j.issn.1009-5470.2014.03.011

• 海洋环境保护 • 上一篇    下一篇

厦门湾沉积物中磷的形态特征及环境意义*

姜双城1, 林培梅2, 林建伟1, 蔡建堤1, 许贻斌1, 郑乐云1   

  1. 1. 福建省水产研究所, 福建 厦门 361013; 2. 厦门市第五中学, 福建 厦门 361000
  • 收稿日期:2013-07-31 修回日期:2013-12-02 出版日期:2014-05-29 发布日期:2014-05-30
  • 通讯作者: 郑乐云。E-mail: lyzheng69@sina.com
  • 作者简介:姜双城(1980~), 男, 山东省济宁市人, 助理研究员, 硕士, 从事海洋生态与环境方面的研究。E-mail: 2001082011@163.com
  • 基金资助:
    海洋公益专项(2010050012-2)

Distribution characteristics of phosphorus and its environmental significance in the surface sediments of Xiamen Gulf

JIANG Shuang-cheng1, LIN Pei-mei2, LIN Jian-wei1, CAI Jian-di1, XU Yi-bin1, ZHENG Le-yun1   

  1. 1. Fisheries Research Institute of Fujian Province, Xiamen 361013, China; 2. Xiamen Fifth Middle School, Xiamen 361000, China
  • Received:2013-07-31 Revised:2013-12-02 Online:2014-05-29 Published:2014-05-30

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摘要： 2010年3月在厦门湾采集表层沉积物, 应用改进的化学试剂连续分级浸取法(SEDEX)法对其中的弱吸附态磷(Ads-P)、铁结合态磷(Fe-P)、自生磷灰石及钙结合态磷(Ca-P)、碎屑态磷(De-P)和有机态磷(OP)的含量进行了分析测定, 结合沉积物的环境参数, 讨论了各种形态磷的地球化学行为。Ads-P、Fe-P、Ca-P、De-P、OP和总磷(TP)平均含量分别为9.80μg?g-1、148.69μg?g-1、14.07μg?g-1、136.89μg?g-1、91.97μg?g-1和401.41μg?g-1。研究表明, 沉积物中的TP受陆源输入影响较小; Ads-P和Ca-P含量主要源于海区内部生物地球化学过程; De-P、OP和Fe-P主要受陆源输入影响; Ca-P、De-P和OP与重金属(Cu、Pb、Cd和As)具有化学耦合作用, 在沉积过程中, 可能具有相似地球化学行为。

Abstract: Surface sediments were collected from the Xiamen Gulf in March 2010. The sediments were analyzed with modified SEDEX (sequential extraction and separation analysis method) to obtain Ads-P (absorbed phosphorus), Fe-P (iron-bound phosphorus), Ca-P (phosphate bound onto CaCO3), De-P (detritus phosphorus), and OP (organic phosphorus). Along with environmental parameters of sediments, the geochemistry characters of phosphorus were discussed．The mean contents of Ads-P, Fe-P, De-P, Ca-P, OP, and TP (total phosphorus) were 9.80, 48.69, 14.07, 136.89, 91.97, and 401.41 μg?g-1, respectively. The results showed that TP was weakly influenced by terrestrial input, and De-P, OP and Fe-P were mainly influenced by terrestrial input. Ads-P and Ca-P were mainly from biogeochemical processes of the sea area. Ca-P, De-P and OP with heavy metals (Cu, Pb, Cd, and As) possessed chemical coupling, and might have similar geochemical behavior in the deposition process.