基于层次分析法的海水入侵评价研究及应用

Research and Application of Seawater Intrusion Assessment Based on the Analytic Hierarchy Process

本文基于层次分析法的原理和分析步骤,以海水入侵等级作为评价对象,选取氯化物、硫酸盐、矿化度、钠吸附比和咸化系数5项参数作为评价指标,通过确定海水入侵等级,构建海水入侵层次分析模型,并将构建的模型应用于大连地区海水入侵评价中。评价结果表明,16个监测点中仅有3处发生海水入侵,其余点位均为无入侵;构建的层次分析法评价结果与氯化物单指标评价法有很好的对应关系,两者评价结果一致率达到81.2%,且构建的层次分析法与氯化物单指标评价法相比评价更加合理,结果更加准确可靠,具有良好的应用前景。

Based on the principles and analytical steps of the analytic hierarchy process,this paper takes seawater intrusion levels as the evaluation target,selecting five parameters—chlorides,sulfates,salinity,sodium adsorption ratio,and salinization coefficient—as evaluation indicators.By determining seawater intrusion levels,a seawater intrusion hierarchy analysis model is constructed and applied to the assessment of seawater intrusion in the Dalian region.The evaluation results show that out of 16 monitoring points,only 3 experienced seawater intrusion,while the remaining points showed no intrusion.The evaluation results of the constructed AHP model correspond well with the single indicator evaluation method based on chlorides,with a consistency rate of 81.2%.Compared with the chloride single indicator evaluation method,the AHP-based evaluation is more reasonable and provides more accurate and reliable results,demonstrating good application prospects.