Forecast and Analysis of Climate and Resource Trends during Crop Growing Season in Fuxin Region
Based on the meteorological data from May to September of 1953 to 2023 in Fuxin,the trend and forecast analysis of relevant meteorological factors were carried out by using rescaled range(R/S)and V sta-tistics,the results:During the 1953～1953 growing season,the mean temperature and accumulated tempera-ture≥10℃ in the Fuxin 2023 showed an increasing trend,while the precipitation and sunshine hours showed a decreasing trend.The Hurst indices of the four meteorological factors were all obviously greater than 0.5,which indicated that the long-term memory characteristics existed in them,precipitation and sunshine hours still showed a downward trend.The average cycles of temperature,precipitation,sunshine duration and accu-mulated temperature≥10℃ were 14,16,13 and 14 years respectively.In other words,the trend of mean temperature and active accumulated temperature≥10℃ in the growing season reversed after 14 years,and the trend of precipitation and sunshine duration reversed to an upward trend after 16 years and 13 years respec-tively.The correlation of each meteorological factor is not the same,the average temperature and≥10℃ ac-cumulated temperature have a high correlation with each factor,The regression equations all passed the signifi-cance test of 0.001;The correlation between precipitation and sunshine duration and the influencing factors was not high,and The regression equations all passed the significance test of 0.1.
CropClimatic resourcesRescaled range analysisV statisticTrend predictionFuxin region
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