太子河鞍山市段水环境承载力动态研究

Dynamic Study on Water Environmental Bearing Capacity of Anshan Section of Taizi River

根据太子河鞍山段水环境现状和承载力概念模型建立多目标优化模型,定量分析了流域水环境动态变化特征,分析了TP、 TN、 COD、 GDP、灌溉面积、人口等参数影响程度。对各指标权重利用AHP进行计算,对其2012—2018年水环境承载力动态变化特征利用指标体系法进行评价。研究表明:太子河鞍山段经济承载压力不断增大,富营养化和人口指标处于超载水平,相对于水环境而言水资源面临的形式更加严峻;评价结果基本能够反映流域水环境超载的实际状况,可为促进区域水资源与经济社会、生态环境的协调发展提供一定决策依据。

According to the present situation of water environment and the concept model of carrying capacity of Anshan section of Taizi River,a multi-objective optimization model was established.The dynamic change characteristics of water environment in the basin were quantitatively analyzed,and the influence degree of parameters such as TP,TN,COD,GDP,irrigation area and population was analyzed.The weight of each index is calculated by AHP,and the dynamic change characteristics of water environmental carrying capacity from 2012 to 2018 are evaluated by index system method.The results show that the economic carrying pressure of Anshan section of the Taizi River is increasing,the eutrophication and population index are at the overload level,and the form of water resources is more severe than that of water environment.The evaluation results can basically reflect the actual situation of water environment overload in the basin,and can provide some decision-making basis for promoting the coordinated development of regional water resources,economy,society and ecological environment.