Analysis of Food Production Fluctuation Rules and Reasons in Gansu Province

Based on statistical yearbook data of Gansu province and other information,this paper analyzes fluctuation rules and its reason of grain yield,sown area and grain yield per unit area in Gansu province from the year of 1978 to 2011 and then puts forward some measures to ensure food security,such as increasing investment,improving grain production capacity steadily;updating the concept of food security; improving comparative economic benefits of food production; coordinating the relationship among agricultural structure adjustment,ecological construction,and food security and so on.