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我国粮食生产的发展规律1.建国以来我国粮食生产变化轨迹表明,我国粮食总产量存在稳定上升的趋势,我国粮食生产增长率变化轨迹则呈十分明显的周期性波动。1970年以后周期缩短,规律性增强,即两年升一年降,少数年份增长年多一些,但从未出现过连续两年减产的情况,这一规律主要是由于气候的周期性变化所致。2.建国以来我国人均粮食生产的变化轨迹可以分为四个阶段。第一阶段为1950—1958年,人均产量从1949年的209公斤提高到303公斤,9年提高94公斤;第二阶段为1959—1978年,在经历了3年自然灾害造成的粮食生产严重滑坡后,人均产量在波动中缓慢增长,由1959年的253公斤提高到1978年
The law of development of grain production in our country 1. The trajectory of grain production in our country since the founding of our nation shows that there is a steady upward trend in the total grain output in our country. The trajectory of the growth rate of grain production in our country shows a very clear cyclical fluctuation. Since 1970, the cycle has been shortened and the regularity has been enhanced, that is, the number of cycles has been rising year by year in two years and the number of years in a few years has been increasing more. However, there has never been any case of a two-year reduction in output. This is mainly due to the cyclical changes in climate . Since the founding of our nation, the trajectory of per capita food production can be divided into four stages. In the first phase, from 1950 to 1958, the per capita output increased from 209 kilograms in 1949 to 303 kilograms in 1994, up 94 kilograms in nine years. In the second phase, from 1959 to 1978, the grain production suffered from three years of natural disasters was seriously deteriorated. After that, the per capita output increased slowly in fluctuation, from 253 kilograms in 1959 to 1978