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- W2347403438 abstract "In recent years,seasonal droughts occur frequently in the hilly area of central Sichuan,resulting in serious impacts on the agricultural production in Sichuan.According to the daily meteorological data of eight meteorological stations from 1960to2011 in this area,the relative humidity index in the national standards was selected as the drought index,and linear trend method,Morlet wavelet,and inverse distance weighting interpolation method were used to investigate the spatial and temporal distribution of seasonal drought frequency and intensity.The results indicated that(1)drought frequency and intensity have large differences in different seasons,and they are significantly higher in spring and winter than those in summer and autumn,and drought occurs mainly in spring and winter;(2)on the temporal distribution,drought in spring and autumn tends to be worse while drought in summer and winter alleviates.Drought in spring has three cycle evolutions while drought in winter has 2cycle evolutions;and(3)on the spatial distribution,the central hilly area of central Sichuan has high incidence of drought in spring and summer,while the northern hilly area of central Sichuan has the high incidence of drought in autumn and winter.This study can provide a theoretical basis for the drought control and mitigation measures in the hilly area of central Sichuan." @default.
- W2347403438 created "2016-06-24" @default.
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- W2347403438 date "2015-01-01" @default.
- W2347403438 modified "2023-09-26" @default.
- W2347403438 title "Spatial and temporal distribution of seasonal drought in hilly area of central Sichuan in recent 50 years" @default.
- W2347403438 hasPublicationYear "2015" @default.
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