浙江省太湖交界断面藻类预警应急监测指标特征分析

太湖藻类的爆发呈现一定的阶段性,根据2008年太湖藻类的时空分布,将藻类爆发划分为5个阶段。在太湖流域藻类预警应急监测期间,连续监测湖州市新塘港与太湖交界断面的8项水质指标,研究藻类爆发不同阶段交界断面水质指标的变化情况,采用Pearson相关分析法分析各水质指标间的相关性,探讨不同时期太湖流域藻类预警应急监测应重点关注的水质指标,为浙江省太湖流域藻类防控提供理论依据。

Assessment of water index obtained in algae early-warning monitoring at cross-section of Tai Lake and Zhejiang Province

The algae bloom in Tai Lake exhibited stage characteristics, according to the spatial distribution of algae in 2008, the author divided algae bloom into five stages. 8 water indexes in transition section of Tai Lake and New Port during algae outbreak were monitored in the algae early-warning monitoring. The variation of river water quality during different stages of algae bloom was studied, and the correlations among the 8 water indexes were ana-lyzed by Pearson correlation analysis. Base on the stage characteristics of algae bloom, early-warning monitoring should focus on different indexes in different stage, which provided theoretical basis for prevention and control of al-gae in Tai Basin, Zhejiang.