长江流域资源与环境 >> 2006, Vol. 15 >> Issue (4): 490-494.

• 生态环境 • 上一篇    下一篇

典型城内过富营养湖泊沉积物和间隙水中各形态磷的相关性研究

赵 颖1,2,王国秀1,章北平2   

  • 收稿日期:2005-07-08 修回日期:2005-10-26 出版日期:2006-07-20
  • 通讯作者: 赵 颖

RELATIONSHIP AMONG DIFFERENT FORMS OF PHOSPHORUS IN SEDIMENTS AND INTERSTITIAL WATER IN TYPICALLY INNERCITY HYPEREUTROPHIC LAKE

ZHAO Ying1,2, WANG Guo-xiu1, ZHANG Bei-ping2   

  • Received:2005-07-08 Revised:2005-10-26 Online:2006-07-20
  • Contact: ZHAO Ying

摘要: 研究了武汉市繁华市中心典型过富营养湖泊沉积物—间隙水体系磷形态的相关性。对沉积物—间隙水中磷形态的连续提取分析发现,自然粒度下,沉积物中有机质含量与沉积物中有机/细菌聚合磷存在很好的线性相关性,说明沉积物中有机质是有机/细菌聚合磷的源;沉积物中总磷决定间隙水中总溶解性磷和溶解性磷酸盐的含量,并且总磷与间隙水中总溶解性磷和溶解性磷酸盐存在很好的相关性;沉积物中FeP和AlP分别与间隙水中的Eh和溶解性磷酸盐存在相关性,说明Eh的大小严重影响FeP和AlP的含量,但是FeP和AlP含量之和又主导着间隙水中溶解性磷酸盐的含量。对典型市内过富营养湖泊的沉积物-间隙水体系中形态磷的相关性研究,旨在为控制这种典型过富营养湖泊沉积物中磷向水体释放提供理论参考。

关键词: 城内过富营养湖泊, 沉积物, 间隙水, 形态磷, 相关性

Abstract: The system of sedimentinterstitial water in typical innercity hypereutrophic lake in Wuhan City was studied. Sediments of this system were sequentially extracted in natural granularity. The result showed that there was a good linear relationship between organic matter (OM) and org / bact P contents in sediments. This organic matter in sediments was the source of org / bact P. The total phosphorus in sediments dominated the content of total dissolved phosphorus and phosphate in interstitial water. In addition, there were good relatiohships between total phosphorus in sediment and the total dissolved phosphorus in interstitial water, and between total phosphorus in sediment and phosphate in interstitial water. FeP and AlP in sediments were correlative with Eh and phosphate in interstitial water, respectively. This showed that the FeP and AlP contents were affected by Eh in interstitial water and the total content of FeP and AlP dominated the content of phosphate in interstitial water. Through studying the system of sedimentinterstitial water in typical innercity hypereutrophic lake, the experimental result has theorectical value in controlling phosphorus release from sediments to the water in these lakes.

Key words: incity hypereutrophic lake, sediment, interstitial water, form phosphorus, relativity

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