To further understand the characteristics of seasonal variation of phosphors species in lake surface water,the contents of phosphorus species in water of Changshou Lake were continuously monitored in July,2009(high-water period),November,2009(normal-water period),and March,2010(low-water period),and the correlations between phosphorus species and water quality parameters were also analyzed.The results showed that dissolved total phosphorus(DTP) was the main existing forms in total phosphorus(TP) in the lake...