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一、“82.5”崩山及其危害情况清远县1982年5月12日,遭到特大暴雨的突然袭击,雨势之强,范围之广,危害之大,实为历史所罕见,亦是解放33年来所未有的。当日,大暴雨(24小时降雨150毫米以上)的降雨范围达2,487平方公里,占全县总面积的69%,其中:特大暴雨区(24小时降雨300毫米以上)为1,553平方公里,占全县总面积的43%,24小时降雨500毫米以上的范围792平方公里。由于暴雨山洪的冲击,出现了大面积崩山现象。据统计,全县达14万处,22万亩左右;据8个公社调查核实,崩山60,950处,面积为108,000亩,其中鱼坝公社山地总面积15.9万亩,被严重冲刷崩塌的达4.3万亩,占山地总面积的27%。情
I. The “82.5” Collapse Mountain and Its Harmful Situation On May 12, 1982, Qingyuan County was suddenly attacked by heavy rainfall. The rainstorm is strong, the scope is wide and the harm is so great that it is rare in history. It is also an example of the liberation of 33 Unprecedented. On that day, the rainfall range of heavy rainstorms (above 150 mm in 24 hours) reached 2,487 km 2, accounting for 69% of the total area of the county, of which 1,553 km 2 in the heavy rainfall area (above 300 mm in 24 hours) 43% of the area, rainfall of 24 hours more than 500 mm range of 792 square kilometers. Due to the impact of heavy rain and flash floods, there has been a large area collapse phenomenon. According to statistics, the county reached 140,000 and about 220000 hectares. According to the investigation and verification of 8 communes, it collapsed 60,950 with an area of 108,000 mu, of which, the total area of the mountainous area of the fish dam commune was 159,000 mu, which was seriously washed down by 43,000 Mu, accounting for 27% of the total mountain area. situation