“十一五”期间辽河铁岭段及支流水质变化趋势

Water Quality Change Trend of Liao River Tieling Section and Tributaries in "Eleventh Five-Year" Period

用Daniel的Spearman秩相关系数法对辽河铁岭段及支流在"十一五"期间水质进行趋势检验,确定各监测断面超标污染物及综合污染指数上升或下降趋势的显著性,结合铁岭市"十一五"期间的污染治理措施,分析各项污染物产生变化的原因,提出了今后的工作方向,为进一步加强环境管理提供了依据。

This paper tested the trend of water quality of Liao River Tieling section and tributaries in ＂Eleventh Five-Year＂ period by the method of Daniel＇s Spearman rank correlation coefficient, identified the significance of rise or fall trend of excessive pollutants and integrated pollution index of monitor sections. Combining pollution control measures of Tieling in ＂Eleventh Five-Year＂ period, it analyzed the causes for pollutants change, proposed the work direction in future, and provided the basis for environmental management.