【摘要】 应用回归分析法研究了北方河流在迳流量季节与年度变化较大的情况下河流水体的自净规律 ,对确定北方季节性河流水污染物总量控制目标与水质保护目标 ,具有重要的现实意义 ,在实际工作中已得到应用并具有较强的推广价值更多还原

【Abstract】 Based on recurrence analysis in this paper, the self purification principle of river whose volume of flow changes greatly in different season and year in north China is studied It has significant importance in determining the target of totality control of water pollutants and water quality level of seasonal river in north China, it has been put into use and will be of great value in practice更多还原