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用箱式采样器采集了美国佛罗里达州东海岸奥·伽利河口的沉积物柱状样,分析了间隙水的氯度、pH、Eh、5项植物营养盐、碱度、硫酸根、硫离子和锰。Eh小于零,硝酸根在整个沉积物中被耗尽,硫酸根在9cm处耗尽,硫离子浓度较高,说明整个沉积物处在还原性环境中;营养盐的再生过程进行的很激烈,离子活度积的计算结果说明,硫离子在控制间隙水中金属离子浓度方面起着重要的作用。
Sediment column samples collected from the Ogali River estuary on the eastern coast of Florida, USA were collected by a box-type sampler. Chloride, pH and Eh of the interstitial water were analyzed. Nutrients, alkalinity, sulfate and sulfur ions manganese. Eh less than zero, the nitrate was depleted in the entire sediment, sulfate depleted at 9cm, the higher the concentration of sulfur ions, indicating that the entire sediment in a reducing environment; nutrient regeneration process is very fierce, Calculation of the ion activity product shows that sulfur ions play an important role in controlling the metal ion concentration in the interstitial water.