辽河流域水环境预警研究

建立科学的预警系统是解决中国水环境危机的重要手段，为解决正确、快速而又直观预警的问题，引申并利用韦伯-费希纳定律，结合熵权法，以辽宁段内的三合屯、阿吉堡作为研究实例，选取与辽河流域水环境关系密切的水质评价指标。在此基础上利用熵权法确定各指标的权重，计算2个断面的水环境预警值，进而建立水环境质量等级与水环境综合影响指数之间的水环境预警模型。结果表明：三合屯预警级别为超重警，阿吉堡为无警，此模型可以较好地用于辽河流域水环境预警与评价。

Research on Water Environment Forewarning for Liaohe River Basin

The establishment of scientific forewarning system is an important means to solve the crisis of water environment in China. In order to make the correct, fast and intuitive forewarning, this paper introduced Weber-Fechner’s Law from the field of psychology, took water quality monitoring sections of Sanhetun and Ajipu as cases in Liaohe basin, and selected the important water environment quality evaluation indices for the study. On this Basis, the weights of various indicators were determined using entropy Law method, and the values of water environment warning of the two sections were calculated, and the warning models between water level and water environmental quality index were established, in order to quantify the quality of water environment. The results showed that: the level of Sanhetun section was overweight, Ajipu had on no warning status. Therefore, this model can be used for water warning and water quality evaluation in the Liaohe River Basin.