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目的分析水源水中藻类的时间分布特征及其影响因素。方法于2011—2013年,每月采集海口市某集中式供水水源水进行水质检测及藻密度和种类的鉴定。结果三年期间,该水源水中的藻密度为5.35×106个/L,枯、丰、平水期藻密度分别为5.52×106、5.31×106、5.23×106个/L;水中的藻密度与p H、色度均呈正相关(P<0.05),与总氮、总磷、硝酸盐氮、COD、浑浊度无相关性(P>0.05)。结论该水源水可能存在枯水期藻类增长的潜在风险。
Objective To analyze the temporal distribution of algae and its influencing factors in source water. Methods From 2011 to 2013, a centralized water supply source water in Haikou city was collected for water quality testing and identification of algal density and species. Results During the three years, the density of algae in the water was 5.35 × 106 / L, the algal density in dry, abundant and flat water phases were 5.52 × 106, 5.31 × 106 and 5.23 × 106 个 / L, respectively. The algae density in water and p H and chroma were positively correlated (P <0.05), but not with total nitrogen, total phosphorus, nitrate nitrogen, COD, turbidity (P> 0.05). Conclusion The source water may have the potential risk of algal growth during dry season.