Erlongshan reservoir water quality was evaluated for class and class by monitoring continuously indexes and was unable to meet the requirement of central drinking water source due to higher cod ( subscript mn ) , tn and tp and eutrophic environment 摘要连续监测和分析了二龙山水库的水质，对水污染程度进行了评价，水库高锰酸盐指数、总氮和总磷超标严重，呈现富营养化状态，总体水质为类和类，已无法满足集中式生活饮用水水源地的水质要求。
From september 2000 to august 2001 , we collected the zooplanktons qualitatively and quantitatively at 12 sampling sites in the river and measured 3 physical indexes ( temperature , ph and electric conductivity ) and 5 chemical indexes ( nh3 - n , tp , tn , codmnand do ) . through identifing the zooplanktons " category , the common and the dominant species were ascertained 2000年9月至2001年8月，在内河的主要河道设置12个采样点，对浮游动物进行定性和定量的采集，同步进行温度、 ph值和电导率三项物理指标以及氨氮、总磷、总氮、高锰酸盐指数和溶解氧五项化学指标的测定。
