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                韩江流域

                来源:彩神iv下载 发布日期:2015-07-30
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                   韩江流域是我省除珠江流域外的第二大流域。干流发源于紫金县七星崠,北称梅江,北东向流至大埔三河坝与汀江(发源于福建长汀马木山)汇合后始称韩江,此后折向南流,至潮洲潮安进入韩江三角洲,分为东溪、西溪、北溪,经汕头市各入海口注入南海。主要支流有汀江、五华水、宁江、石窟河和梅潭河。韩江干流全长470 km2;平均坡降 0.40 ‰;流域面积30112 km2,其中我省境内17851 km2;年均降雨量1600 mm;年均径流量 274 亿m3,其中我省境内年均产流量 157.3 亿m3;控制站潮安站实测流量最大13300 m3/s,最小33 m3/s。

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