基于熵权法的集对分析模型在青岛市崂山区海水入侵现状评价中的应用

传统海水入侵现状评价中单指标评价法指标存在随机性和不确定性等问题，论文将熵权理论和集对分析模型相结合，以青岛市崂山区海水入侵实测点为例进行研究。基于咸、淡水中的重要特征成分的显著差异，选取了Cl-，M，SO₄2-，γCl-/γHCO₃-，SAR五项化学特征指标作为评价指标。研究结果表明崂山区海水入侵主要分布于江家土寨东-浦里社区北入侵段，王哥庄-港西-港东入侵段、仰口湾入侵段、登瀛村-栲栳岛入侵段。该评价结果与单指标（Cl-）评价法反映的海水入侵现状具有一致性，比单指标评价法具有优势，可见基于熵权法的集对分析模型合理可靠，评价结果较为准确。

Assessment of seawater intrusion in Laoshan district of Qingdao city by using model of set pair analysis based on entropy weight method

In this study, to solve the question of randomness and uncertainties of traditional evaluation method when taking an assessment of seawater intrusion by using a single index (such as Cl-), an model based on set pair analysis of entropy weight method was built to take an assessment of seawater in Laoshan district of Qingdao city.In this study, Cl-, M, SO₄2-, γCl-/γHCO₃- and SAR was introduced to investigate seawater invasion.The current results indicated that less of the sampling points were influenced by seawater intrusion, the seawater intrusion in Lao Shan area is mainly distributed in the coastal alluvial plain, the downstream of the river and the two sides of the channel.And then compared with the different evaluation methods, the evaluation results are consistent with the single index method and the reality seawater intrusion.So the set pair analysis model based entropy weight method is reasonable and reliable.