潭江下游和黄茅海沉积物理化性质与重金属含量的关系研究

Study on the Relationship Between Heavy Metal and Physico-Chemical Properties in Lower Reaches of Tan River and Huangmao Bay

研究了潭江下游和黄茅海沉积物理化性质和沉积物中的重金属含量,并对沉积物重金属与理化性质之间的关系进行了分析。结果表明:沉积物的质地类型以壤土为主,占到了50%,pH平均值为7.81,有机质平均质量分数为2.476%,沉积物的阳离子交换量较高,属中等偏上水平,盐分含量平均值为1.181 g/kg;相关分析和回归分析的结果也表明,沉积物重金属与理化性质之间的关系极为复杂。

This paper studied the property and the heavy metal content of sediment in Tanjiang river and Huangmao bay, and analysed the relationship between sediment heavy metal and sediment property. The results showed that the sediment texture is loamy soil, and the loamy soil is 50%, the average pH is 7.18, the average content of organic matter is 2. 476%, the sediment CEC level is high, the average of salinity content is 1. 181g/kg; the correlate analysis and regression analysis also showed that, there has a complicated relationship between sediment heavy metal and sediment property.