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我区地处黄土高原中部,多年平均降水量511.2毫米,因分配不均,常引起春旱和伏旱。据统计,从1949～1975年的26年间,共发生旱灾84次。干旱是造成我区粮食产量低而不稳的主要原因之一。 为了提高旱地粮食产量,自1964年以来,我站在平凉县柳湖乡土坝行政村建立试验基点,开展了以兴修水平梯田为主的农田基本建设,至1978年修成高标准梯田478亩,取得了当年修筑当年增产、连年稳产的经济效益。据连续12年梯田产量记载,平均
My area is located in the middle of the Loess Plateau, the average annual rainfall of 511.2 mm, due to uneven distribution, often caused by spring drought and summer drought. According to statistics, a total of 84 times of drought occurred during the 26 years from 1949 to 1975. Drought is one of the main reasons for the low and unstable grain output in our region. In order to raise the grain yield in the dry land, since 1964, I set up a trial base for the construction of an administrative dam in the dam village of Liuhu, Pingliang County. I started farmland infrastructures mainly for the renovation of horizontal terraces. By 1978, 478 mu of high- That year to build the year increase production, year after year stable economic benefits. According to records of terrace production for 12 consecutive years, average