杭嘉湖平原河网调水试验水质模糊风险评估

Risk Assessment of Water Diversion Experiment in Hangjiahu Basin River Network Using Fuzzy Mathematics Method

通过引入模糊数学理论,对2015年杭嘉湖平原河网调水试验中嘉兴市的水质指标风险进行了计算与评估。结果表明,调水试验过程中,高锰酸钾指数和溶解氧的水质风险较低,总磷面临一定风险,氨氮和总氮的水质风险较高。嘉兴市周边河道的水质风险总体低于嘉兴市内河道(调水目标区域),空间差异明显。该研究结果对未来杭嘉湖平原河网开展常态化调水过程中的水质风险管控有着重要意义。

The fuzzy mathematics method has been introduced to assess the environmental risk caused by the water diversion experiment in Hangjiahu basin river network. The risk assessment indicated that during the water diversion experiment,the risk of CODmn and DO was low,the risk of TP was medium,and the risk of NH_3-N and TN was high. Moreover,the rivers outside Jiaxing City had lower risk than the rivers inside Jiaxing City,the spatial risks of those rivers were in different levels. The results of this study will play an important role in Hangjiahu basin water diversion project in the future.