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社评“2024gy钙站”-知识课堂

近10年海河流2024gy钙站域河湖加快复苏 河流断流现象全面好转

来源: 海南日报
2024-12-01 07:34:29

最佳回答

“2024gy钙站”近10年海河流2024gy钙站域河湖加快复苏 河流断流现象全面好转

  近日2024gy钙站,水利部海河水利委员会组织对近2024gy钙站10年海河流域河湖生态环境复苏成效进行评估,结果显示海河流域河湖正加快复苏,河流断流现象全面好转,湖泊水域面积稳定恢复,地下水超采治理成效明显。

  据统计,海河流域52条主要河流全线有水平均时长,由2014年的193天增加至2023年的267天;有水长度占评估河长比例,由2014年的75%增加至2024年的96%。2024年有51条河流实现全线贯通。

  水面面积超过10平方公里的白洋淀、衡水湖、南大港等3个湖泊生态水位达标率保持100%,白洋淀自2019年以来年平均水位维持在7米以上,2024年平均水面面积近300平方公里,超过20世纪50年代水平。

  2023年底,京津冀治理区浅层地下水和深层地2024gy钙站下水较2018年同期分别回升2.59米和7.06米;2024年京津冀平原区地下水超采区总面积较2015年减少32.8%,地下水超采量减少85.8%,严重超采区面积减少98.9%。

  2023年海河流域河湖水质状况总体为优或良,Ⅰ—Ⅲ类水质断面由2014年占比不足40%提升至近80%;劣Ⅴ类水质基本消除;消失多年的黑鹳、丹顶鹤等珍稀物种重现相关水域。

  (总台央视记者 梁丽娟 李洁)

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