The results were combined with GIS digital graphs and indicated that the water quality situation of the mainstream and most tributaries is good,the Tuo River,Great Canal and Ta...

• 将计算结果与GIS数字化图形相结合,表明长江干流和大部分支流水质状况基本良好,上游支流沱江、下游支流大运河及太湖已受到较为严重的污染;