2_7_流域分区河流统计__2004年_

2_7_流域分区河流统计__2004年_2-7流域分区河流水质状况评价结果(按评价河长统计)(2004年)EvaluationofRiverWaterQualitybyRiverValley(byRiverLength)(2004)评价河长分类河长占评价河长百分比(％)(千米)ClassifyRiverlengthofEvaluateLength(％)流域分区RiverEvaluateⅠ类Ⅱ类LengthGradeⅠGradeⅡ(km)全国NationalTotal全国NationalTotal1335456.327.2松花江SonghuajiangRiver133070.811.2#松花江SonghuajiangRiver105871.013.1辽河LiaoheRiver50061.510.7#辽河LiaoheRiver21792.7海河HaiheRiver113002.616.0#海河HaiheRiver87872.516.3黄河HuangheRiver1358319.514.7淮河HuaiheRiver130561.012.8#淮河HuaiheRiver116481.112.9长江ChangjiangRiver373699.237.5#太湖TaihuLake2582东南诸河SoutheasternRivers57581.446.0珠江ZhujiangRiver159621.440.3#珠江ZhujiangRiver113410.438.4西南诸河SouthwesternRivers80521.627.5西北诸河NorthwesternRivers1015211.935.0分类河长占评价河长百分比(％)ClassifyRiverlengthofEvaluateLength(％)Ⅲ类Ⅳ类Ⅴ类劣Ⅴ类GradeⅢGradeⅣGradeⅤWorsethanGradeⅤ25.912.86.021.827.133.06.021.929.036.54.715.719.75.918.543.75.05.723.463.222.34.63.451.117.94.31.457.611.720.79.723.717.217.310.241.519.317.711.337.725.77.05.015.65.717.314.262.816.012.81.921.928.412.64.51