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Position: Home > Articles > Bioavailable phosphorus in surface sediments of Zhelin Bay Chinese Journal of Ecology 2006,25 (7) 795-799

柘林湾表层沉积物中的生物可利用磷

作  者:
杜虹;黄长江;董巧香;李金
单  位:
温州医学院;汕头大学生物系
关键词:
柘林湾;沉积物;生物可利用磷
摘  要:
对2002年7月至2003年7月间采集的柘林湾表层沉积物样品中的总磷(TP)、有机磷(OP)及各形态无机磷进行分析。结果表明,各形态磷的空间分布与调查海区沉积物粒径有关,并受沿岸污水排放及近岸养殖排污等人为活动的影响。表层沉积物各形态磷的平面分布基本呈现为湾内(除S1、S7站外)高于湾外的总体趋势。无机磷中以自生磷(Au-P)为主要存在形态,占总磷的47.3%,有机磷(OP)含量次之,占总磷的19.5%,铁结合磷(Fe-P)最低。其中,生物可利用磷(包括Ex-P、Fe-P、OP和部分Au-P)占TP的35.7%~83.0%,在国内外海湾中处于较高水平。
译  名:
Bioavailable phosphorus in surface sediments of Zhelin Bay
作  者:
DU Hong~1,HUANG Changjiang~2,DONG Qiaoxiang~2,LI Jin~1 (~1Department of Biology,Shantou University,Shantou 515063,China;~2Wenzhou Medical College,Wenzhou 325035,China)
关键词:
Zhelin Bay,sediments,bioavailable phosphorus.
摘  要:
In this paper,surface sediment samples were collected from Zhelin Bay from July 2002 to July 2003,and their total phosphorus(TP),organic phosphorus(OP),and different types of inorganic phosphorus were analyzed.The results indicated that the spatial distribution of various phosphorus forms was related to the grain size of sediments,and influenced by the sewage discharges and effluents from cultivation ponds in the coastal areas.In inorganic phosphorus,authigenic phosphorus(Au-P) was the dominant portion,accounting for 47.3% of TP,while iron bound phosphorous(Fe-P) had the lowest content.OP occupied 19.5 % of TP.The bioavailable phosphorus including extractable phosphorous(Ex-P),Fe-P,OP and Au-P accounted for 35.7%~83.0% of TP,which was much higher than that in other bays in the world.

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