太湖流域跨界水环境动态监测点位优化布局

基于苏浙沪77个跨界动态监测站点布局信息及监测数据,分析了当前多机构、多监测形式复杂的苏浙沪跨界监控体系及其存在的主要问题,针对监测点位重复设置、重要跨界断面监测频次不足等缺点,综合考虑苏浙沪跨界处水文特征、污染物迁移规律,以及上下游水环境敏感区分布等诸多因素,进行跨界区域水环境监控点位布局优化;形成了包括自动站在线监测、手动监测等多种监测手段相结合的跨界水环境动态监控点位布局体系,在满足监测点位代表性、监控全面性、经济合理性的优化原则下,更好地为太湖流域跨界污染事故处理及跨界行政区水环境管理提供数据支持和决策依据。

Layout optimization of water environmental monitoring site of trans-boundary of Taihu Basin

Based on the layout information and monitoring data of 77 cross-border dynamic monitoring sites in Jiangsu, Zhejiang provinces and Shanghai city, this paper analysized the current complex multi-agency composited monitoring system and its problems, including the unnecessarily repeated setting of the monitoring sites on provincial boundary and inadequate monitoring frequency of important trans-boundary sections. Considering the water environmental effect factors such as the hydrological features of the trans-boundary area, migration situation of cross-border contaminants, as well as distribution of environmentally sensitive areas in upstream and downstream area, the layout of water environment monitoring sites has been optimized, which means that a new layout of the monitoring sites has been formed by combining multiple monitoring means such as automatic online monitoring and manual monitoring and etc, making up a system consisting of transboundary water environment dynamic monitoring sites. Under the optimization principle of representative monitoring sites, comprehensive monitoring and economic rationality, the new layout of monitoring sites will provide supporting data and decision basis for handling transboundary pollution accidents and transboundary water environment management in Taihu Lake Basin.