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2009年4月对黄河口湿地4个站点沉积物间隙水中各营养盐成分含量及其随深度的变化进行了研究。结果表明:沉积物间隙水中PO4-P含量变化不大,变化范围是0.18~2.18μmol/L,呈现先降低后升高的趋势。NH4-N、NO3-N、NO2-N含量分别为4.51~348.1μmol/L、1.71~2002μmol/L、0.16~130.0μmol/L,其垂直分布为上高下低,这和土壤氮分布、所处氧化还原环境、植被类型等有密切关系;且无机N以高硝酸盐含量为主,这与黄河水的输入有很大关系。SiO3-Si的含量变化范围是59.7~256.1μmol/L,其垂直分布变化复杂。
In April 2009, the content of nutrients in the interstitial water and the change with depth of the four sites in the Yellow River Estuary wetland were studied. The results showed that the content of PO4-P in sediment interstitial water did not change much, and the range of variation was 0.18-2.18μmol / L, which showed the trend of decreasing firstly and then increasing. The contents of NH4-N, NO3-N and NO2-N were 4.51-348.1μmol / L, 1.71-2200μmol / L and 0.16-130.0μmol / L, respectively. The vertical distribution of NH4- Redox environment, vegetation types are closely related; and inorganic N to high nitrate content, which has a great relationship with the input of the Yellow River water. The content of SiO3-Si varies from 59.7 to 256.1μmol / L, and its vertical distribution is complicated.