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暴雨,尤其是特大暴雨,是一种严重的自然灾害。据市防汛指挥部统计。1977年8月21～23日的一次特大暴雨(暴雨中心在本市宝山塘桥,暴雨总量达585.6毫米)给上海造成的直接经济损失就达一亿二千多万元。暴雨对农业科研工作,特别是对田间试验的影响也是很大的。例如,1983年6月20～26日,本市西部华漕地区的暴雨过程的总雨量就达214.7毫米,致使上海市农科院试验场的水稻秧田一片汪洋,如果当时不采取紧急排涝措施,秧苗将“全军覆没’,那末该年度的所有后季稻田间试验都无法进行下去。
Heavy rain, especially heavy rain, is a serious natural disaster. According to the flood control headquarters statistics. The direct economic loss to Shanghai caused by a heavy rainstorm on August 21-23, 1977 (with a rainstorm center reaching Baoshan Tangqiao in this Municipality with a total rainfall of 585.6 millimeters) reached over 120 million yuan. Heavy rains also have a great impact on agricultural research, especially on field trials. For example, from June 20 to June 26, 1983, the total rainfall of the torrential rains in the Huacao area in the west of the city reached 214.7 millimeters, causing a flood of rice seedling fields at the Shanghai Academy of Agricultural Sciences test site. If emergency drainage measures were not taken, If the seedlings will be “annihilated”, then all subsequent field trials in the year will not be able to proceed.