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Which rivers are the main tributaries of the Hai River system in Hebei?

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The Hai River system is a major drainage network in northern China that encompasses nearly all of Hebei province. The principal tributaries of this system include:1

  • Yongding River: Considered the most important tributary, it flows from the Guanting Reservoir—which is fed by the Sanggan River—through the Beijing area toward Tianjin.1
  • Chao River: Originates in the mountains located north and northeast of Beijing.1
  • Daqing River: Flows eastward from the Taihang Mountains to join the Hai River at Tianjin.1
  • Ziya River: Flows northeastward from southwestern Hebei toward Tianjin. It is supported by the important Hutuo River, which rises in the Taihang Mountains west of Shijiazhuang.1

Additionally, the Grand Canal connects with the system near Tianjin. Due to extensive water-control projects, many of these tributaries have been redirected into separate channels or converted into canals to mitigate the region's historical flooding issues.1