THE RESEARCH OF CYCLIC FLUCTUATION RULE AND FORMING REASON FOR SOYBEAN PRODUCTION OF CHINA

摘要

(In the paper the base data of soybean production of China is calculated for filter by Wavelet Analysis Theory, the yawp of incidentally factors in the data of soybean production is eliminated, the data those yawp has been eliminated may reflect the rule of soybean production in China. ) According to the data those yawp has been eliminated, the soybean production of China from 1950 to 2005 is divided into 8 cyclic fluctuations,the wave crest, trough, average yield and swing are calculated, the research of the soybean production's rule in China is completed; and then we have analyzed the reason of forming the rule of soybean production cyclic fluctuation.