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一、自然灾害发生的情况: 平凉地区解放前历史上的自然灾害,档案馆有资料可查的就是各县的旧志,记载自然灾害发生的起止时间,先后不一,较为普遍的都是从明代开始才有,截止时间,除泾川县志止1948年外,其他几县均止于二、三十年代.为此,以泾川县志记载为主,参照其他县志记载,推算出全区自然灾害平均计算时间.全区从公元1436年(明正统元年)至1948年,共513年,其中有322年发生自然灾害372次,平均计算,不到两年就发生一次灾害,不到一年半就有一年成灾.分县看其情况是:
First, the natural disasters occurred: Pingliang area before liberation of the natural disasters in history, the archives there is information available is the old records of the county, record the onset and ending time of natural disasters, one after another, are more common are from Only the beginning of the Ming Dynasty, the deadline, in addition to Jingchuan Zhiguzhi in 1948, the other counties are limited to the two or three decades.To this end, the records of Jingchuan County, with reference to other county records, calculate the region natural The average time of disaster was calculated in 513 years from 1436 AD (the first year of the Ming Dynasty) to 1948, of which 372 were natural disasters in 322 years. On average, a disaster occurred in less than two years Year and a year has been a disaster. County to see its situation is: