Analysis of Variation of Meteorological Conditions for Moutai Liquor Production Based on Multiple Imputation Method
The multiple imputation method was used to reconstruct the 63-year climate data series around Moutai Distillery,and variation evaluation,sliding t-test,Mann-Kendall test and wavelet analysis were carried out.The results show that the data obtained by multiple imputation method can pro-vide reference for research on actual climate,and median imputation is superior to mean imputation in stability.In the past 63 years,the average tem-perature around Moutai Distillery increased by 0.20℃ per 10 years.In the next 14 years,there will be a period of fluctuating temperature decline,which is conducive to the quality stability of Moutai Liquor.The cumulative precipitation and average humidity decreased by 40.2 mm to 41.8 mm and 0.6%per 10 years,respectively.In the next 10 to 13 years,there will be a period of fluctuating precipitation decline,which is not conducive to the production of Moutai Liquor.The average wind speed decreased by 0.10 m/s per 10 years.In the next 11 years,there will be a period of fluctuat-ing wind speed decline,but the change range is small,having little effect on the production of Moutai Liquor.
multiple imputation methodMoutai Liquor productionvariation of meteorological conditionstime series analysis