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1985年5月23日,伊春市遭到特大火灾后,焦土未寒。8月16日又发大水。洪水袭来时,因城市防洪体系不配套,不完善,加之植被受到破坏,生态不平衡,加重了山洪的危害程度,以致使伊春市区被淹,给国家和人民的生命财产带来巨大损失。一、关于“85·8·16”大水情况由于受8号台风影响,8月14日下午3时至15日下午5时,伊春市区27小时降雨74毫米,局部地区多达90毫米,加上8月上旬已降雨150多毫米,使8月上半月降雨量达到227毫米,比历年同期降雨量多2.7倍,造成土壤饱和,地表径流量加大,西部山区发生了山洪,伊春河及其支流翠蛮河、乌马河、得鹿沟水位急剧上涨。8月15日晚11时乌马河、得鹿沟相继发生洪水漫堤决口,伊春河开始出现洪峰;8月16日凌晨,漫堤洪水沿乌马河铁路桥以南、红光农场以北和乌马河与伊春河汇合处的农堤决口处等三个方向,流向市区内的伊春河老河道。据这次实地调查,上述漫堤决
May 23, 1985, Yichun city was a big fire, the coke is not cold. August 16, another big flood. Flood hit, due to the city flood system is not complete, imperfect, coupled with vegetation damage, ecological imbalances, increasing the extent of flood damage, resulting in flooding Yichun urban area, the country and the people of life and property has brought huge loss. First, on the “85 · 8 · 16” flood situation Due to typhoon 8 affected, August 14 at 3 pm to 15 at 15 o’clock in the afternoon, Yichun urban rainfall of 74 mm in 27 hours, as many as 90 mm in some areas , Plus more than 150 millimeters of rainfall in early August, resulting in a rainfall of 227 millimeters in the first half of August, 2.7 times more than in the same period of the previous year. This caused soil saturation and increased surface runoff. Mountain torrents occurred in the western mountainous areas and Yichun River and its tributaries Cui Man River, Uma River, deer ditch water level rose sharply. On the night of August 15, at 11 o’clock on the evening of August 15, the Uma River and Deer Gulley occurred flood rivulets in succession. The Yichun River started to peak. On the early morning of August 16, the flood flood along the Wuma River Railway Bridge to the south, North and the Uma River and Yichun confluence of agricultural embankment at the mouth of the three directions, to the urban area of the Yichunhe old river. According to the field survey, the above embankment decision