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以黄河口为研究对象，通过对温度、盐度、平衡时间、悬浮物含量等模拟河口现场条件，对黄河口磷酸盐的缓冲机制进行了探讨。黄河口悬浮物对磷酸盐的吸附和解吸一般在4－5h后就已趋于平衡；随着水体悬浮物含量的增加，对磷酸盐的吸附-解吸量呈指数形式下降，粒度减小使吸附量-解吸量呈指数形式增加；盐度对解吸量的影响程度大于吸附量，最大吸附和最小解吸出现在低盐度区；温度对吸附-解吸平衡的影响较大，随温度升高吸附量和解吸量均呈线性关系增加，且平衡时间有所延长。
Taking the Yellow River Estuary as the research object, the buffer mechanism of phosphate in the Yellow River Estuary was discussed by simulating the site conditions of temperature, salinity, equilibration time and suspended solids content. The adsorption and desorption of phosphate by the suspended sediment in the Yellow River Estuary generally tend to be balanced after 4-5 h. With the increase of the suspended matter content in the water, the adsorption / desorption amount of phosphate decreases exponentially, and the particle size decreases and the adsorption The amount of desorption increased exponentially. The effect of salinity on the amount of desorption was greater than the amount of adsorption, and the maximum and minimum desorption occurred in the low salinity region. The temperature had a significant effect on the equilibrium of adsorption-desorption, And desorption amount showed a linear relationship increased, and the balance of time has been extended.