Study of colloidal phosphorus variation in estuary with salinity
Study of colloidal phosphorus variation in estuary with salinity
复制标题
DOI：
10.1007/s13131-010-0003-5
复制
发表时间：
2010-03
影响因子：
1.4
通讯作者：
Ding Chen;A. Zheng;Min Chen
中科院分区：
文献类型：
--
作者：
Ding Chen;A. Zheng;Min Chen
本文研究了河口胶体磷随盐度的变化，并与颗粒磷和真溶解磷进行比较，以找出它们在河口行为的异同。研究了不同盐度下磷在颗粒、胶体和真溶相中的分布规律及其与悬浮颗粒物的关系，以了解河口区胶体磷的转化和输送情况。结果表明，总胶体磷、有机胶体磷和无机胶体磷酸盐浓度均由河端向海端下降，说明其来源为陆源。有机磷与总胶体磷的比值随着盐度的增加而降低，表明与无机磷相比，有机磷受胶体清除过程的影响更显着。胶体相中磷的变化趋势和有机磷与无机磷的比例均与真正溶解相相似，而与颗粒相不同。
The variation of colloidal phosphorus with salinity in estuary was studied in this paper, which was compared with those of particle and truly dissolved phosphorus with the purpose of finding out the similarities and differences between their behaviors in the estuary. Distribution patterns of phosphorus in particle, colloidal and truly dissolved phase at different salinities and their relationships with suspended particulate matter were also studied to understand the transformation and transportation of colloidal phosphorus in estuarine area. The result showed that the concentrations of total colloidal phosphorus, organic colloidal phosphorus and inorganic colloidall phosphate all descended from river-end to sea-end, illustrating their terrigenous source. Ratios of organic to total colloidal phosphorus decreased with salinity’s increment, indicating that organic phosphorus was influenced by scavenging process of colloid more significantly as compared with inorganic phosphate. Both of the phosphorus variation tendencies and the proportion between organic and inorganic phosphorus in colloidal phase was similar with that in truly dissolved phase while different from that in particle phase.