2-7流域分区河流水质状况评价结果(按评价河长统计)(2005年)EvaluationofRiverWaterQualitybyRiverValley(byRiverLength)(2005)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NationalTotal1404975.128.9松花江区SonghuajiangRiver134440.87.7#松花江SonghuajiangRiver107241.09.4辽河区LiaoheRiver51271.518.7#辽河LiaoheRiver23008.7海河区HaiheRiver118081.820.8#海河HaiheRiver91801.620.3黄河区HuangheRiver1322812.28.1淮河区HuaiheRiver138560.99.2#淮河HuaiheRiver121001.19.7长江区ChangjiangRiver383064.839.9#太湖TaihuLake27000.2东南诸河区SoutheasternRivers58066.444.8珠江区ZhujiangRiver162680.743.5#珠江ZhujiangRiver118120.541.5西南诸河区SouthwesternRivers1272541.5西北诸河区NorthwesternRivers992827.735.7分类河长占评价河长百分比(%)ClassifyRiverlengthofEvaluateLength(%)Ⅲ类Ⅳ类Ⅴ类劣Ⅴ类GradeⅢGradeⅣGradeⅤWorsethanGradeⅤ26.911.76.121.330.125.716.319.435.023.016.315.315.814.410.139.516.918.93.751.817.63.72.553.612.82.01.961.419.723.94.931.221.520.28.839.422.020.08.538.727.87.16.114.38.713.314.463.415.410.37.715.426.88.24.516.325.18.35.419.255.31.00.71.523.510.31.41.4