Ⅰ, The northeastern region of rivers (mainly water supply, groundwater and snow melt water followed by winter frozen, with spring floods and summer floods of the river)
Ⅱ, Rivers in North China (almost entirely rely on rainwater supply, limited supply of ice water, winter ice, summer and spring water shortage in the river)
Ⅲ, Rivers in central China (most of the supply by rainfall, groundwater next, Meixun obvious, particularly prominent in the late river)
Ⅳ, The southeastern coastal areas of rivers (by rainwater recharge, with significant typhoon flood season and spring and summer flood of rivers)
Ⅴ, The southwestern region of the river (mainly in the supply of rainwater, karst groundwater next, the flood season is particularly evident seasonal, spring and summer flood of rivers)
Ⅵ, Mengxin rivers (mostly by rainwater recharge, groundwater recharge followed by the flow is very poor, usually depleted, the rainy season, the river water)
Ⅶ, Northwest alpine rivers (with snow melt water and seasonal snow melt water mainly summer floods and winter dry river)
Ⅷ, The Qinghai-Tibet Plateau region rivers (with snow and ice melt water supply, rainwater and groundwater recharge followed by winter, most of the frozen river, summer and autumn to form the flood season, winter and spring water rarely rivers)
This map comes from the Atlas of physical geography of china, the Sino Maps Press，2010.
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