选择Cl^-、M、Br^-、rHCO₃/rCl及SAR5项水化学要素作为综合判断海水入侵的指标;侵染程度划分为4级;确定了各项指标入侵程度的等级范围。入侵程度的衡量采用模糊数学综合评判模型。用上述指标及方法对莱州湾沿岸地区海水入侵变化情况作了综合评判。

The paper discusses the use of fiver hydrochemical indexes in evaluating the seawater intrusion, and ranking the intrusion degree for Cl^-, M, Br^-, rHCO₃/rCl and SAR. The fuzzy mathematical comprehensive judgement model has been adopted as the method of adjustment. Based on more than 300 water samples obtained from four typical profiles in the coastal region of the Laizhou Gulf, during the period from June 1993 to June 1995, we made a comprehensive judgement of seawater intrusion degree.