退化滨海湿地沉积物中磷形态含量特征及影响因素-《江苏农业科学》

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Title:: Characteristics of phosphorus forms in sediment of degraded coastal wetland and its influencing factors

作者:: 李学平; 邹美玲; 任加云; 滨州学院资源环境系，山东滨州 256600

Author(s):: Li Xueping; et al

关键词:: 沉积物; 磷; 含量; 退化滨海湿地; 形态特征; 影响因素

Keywords:: -

分类号:: X171.4；S156.4

DOI:: -

文献标志码:: A

摘要:: 研究黄河三角洲退化滨海湿地沉积物中磷形态含量特征及温度、pH值、上覆水理化性质对湿地沉积物磷形态含量的影响。结果表明，退化滨海湿地沉积物中不同形态磷中铁结合磷(Fe-P)含量最大，达 971.7 mg/kg，闭蓄态磷(O-P)含量最小，为195.6 mg/kg。Fe-P、铝结合磷(Al-P)、钙结合磷(Ca-P)、O-P平均含量分别683.7、4010、331.6、288.0 mg/kg。当温度＜20 ℃时，Fe-P含量随温度升高而增大，当温度＞20 ℃时，Fe-P含量随温度升高而下降；Al-P含量随温度升高逐渐增大；O-P含量随温度的升高先下降后增大。Fe-P含量随着pH值的增大逐渐降低，pH值＞9时，pH值对Fe-P含量的影响不大；Al-P、Ca-P含量均随pH值的升高先减小后增大。另外，有机质与O-P含量存在正相关关系(r=0.895)，溶氧量与Al-P含量存在正相关关系(r=0940)。

Abstract:: -

参考文献/References:

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