【摘要】 2006年的监测结果显示,温榆河COD_Mn、BOD₅、NH₄-N、TP和TN含量大于我国地表水环境质量V类标准的1.3～11.7倍,主要污染物为总氮、氨氮和总磷;五项指标(SS、SD、COD_Mn、TP、TN)的TSI_M值为75.11～119.45,属于富营养型水体。温榆河4个监测断面共检出浮游藻类6门148种,绿藻种类最多（48%）,其次是硅藻（20.9%）、蓝藻（18.2%）,优势种群均为富营养型水体指示种。温榆河浮游藻类密度大,平均为3179.01×10⁴cells/L,绿藻占优势（75.6%）,蓝藻次之（14.6%）。更多还原

【Abstract】 The monitoring results in 2006 showed that the content of COD_Mn ,BOD₅ ,NH₄-N ,TP and TN in Wenyu River were respectively more than water environmental standards of the V type water 1.4 times、1.3 times,9.3 times,4.3 times and 11.7 times.The total nitrogen, ammonia nitrogen and total phosphorus were major pollutants.The TSI_M value of the five targets (SS,SD,COD_Mn,TP,TN )in Wenyu River were between 75.11 and 119.45 ,it was longs to eutrophic water body.The phytoplankton communuty was composed of 148 species and distributed among six division.The average density of phytoplankton was 3179.01 × 10⁴ cells/L, Chlorophyta was the dominance division （75.6% ） ,and the second was Cyanophyta（ 14.6）.The dominance species of phytoplankton of all monitoring sections were indicator species of eutrophic water body.更多还原