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在影响表层沉积物中重金属含量分布的诸多环境因素中,河口水体的盐度、底质pH值、有机质及悬浮物等对重金属的影响尤为显著。本文选用珠江口海区的1976—1978年所调查的32个测站底质表层重金属浓度和相应测站的底质pH值,有机质和水体盐度等有关资料,用一元回归及多元回归的数理统计方法,探讨了珠江口海区铜与其他重金属之间及重金属与环境因素之间的关系,研究了它们在海区的分布特征。
Among the many environmental factors affecting the distribution of heavy metals in surface sediments, the salinity of sediment, the pH value of sediment, the influence of organic matter and suspended solids on the heavy metals are particularly significant. In this paper, we selected the concentrations of heavy metals in the surface sediments of 32 stations and the sediment pH values, salinity of organic matter and water in 32 stations surveyed from 1976 to 1978 in the Pearl River Estuary, and used the data of one-component regression and multiple regression Method to explore the relationship between copper and other heavy metals and heavy metals and environmental factors in the Pearl River Estuary, and to study their distribution characteristics in the sea area.