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认识和掌握河流和流域的洪水规律和特性,对流域的开发治理,汛期防洪和国民经济建设,有着很重要的作用。1985年、1986年东北地区汛期降雨历时较久,有的地方发生了较大洪水,造成了水灾。本文仅对松花江流域的暴雨和洪水特性作初步探讨,以供参考。一、流域暴雨特性松花江是我国要重点防洪的七大江河之一。流域面积54.6万Km~2,迳流量约720亿m~3,面积和迳流量均居我国第三位。松花江是嫩江和第二松花江在三岔河会合后的名称。
Understanding and mastering the laws and characteristics of floods in rivers and basins plays an important role in the development and management of floodplains, flood control and national economic construction. In 1985 and 1986, rainfall in the flood season in Northeast China lasted for a long time, and in some places, relatively large floods occurred, causing floods. This paper only discusses the characteristics of heavy rain and flood in the Songhua River Basin for reference. First, the characteristics of heavy rain in the basin Songhua River is one of the seven major rivers in China to focus on flood control. Basin area of 546,000 Km ~ 2, 迳 flow of about 72 billion m ~ 3, area and 迳 flow ranks third in China. Songhua River is the name of the Nenjiang River and the second Songhua River in the Sancha River after the meeting.