Analysis and Study on Drought Characteristics in Cangxi County
This paper uses the precipitation data provided by the Cangxi County Meteorological Bureau from 1993 to 2022 at various time periods of the Cangxi National Basic Meteorological Station,and uses statistical methods combined with drought level classification standards to analyze the drought characteristics of Cangxi County.It is found that the annual precipitation in Cangxi County is extremely uneven in time distribution.From 1993 to 2022,there were 24 years of dry weather in the winter of Cangxi County,with the highest frequency of winter drought,averaging 1.1 times per year,followed by summer drought and summer drought.The frequency of occurrence is all 80％.The frequency of local drought occurrence is relatively high,but the severity of drought is relatively low.In recent years,the precipitation in each quarter of Cangxi County has increased compared to normal years,and the number of droughts has decreased,resulting in a decrease in drought risk.
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