Page 45 - 《水资源与水工程学报》2022年第4期
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                 andheavyrainshowedadecreasingtrend,whereasthoseofmoderaterainandheavyrainshowedanin
                 creasingtrend.Theabruptchangesoflightrainydaysoccurredin2011and2016 ,whereasthoseofother
                 rainfallmagnitudesdidnotoccur.Duetothelowandflattopography,heavysummerprecipitation,high
                 waterlevelinriversoutsidethearea ,incompetentwaterconservancyprojects,etc.,theprobabilityof
                 waterlogginginthecountywasquitehigh,whichapproached67.5% inthelast40years,andtheinci
                 denceoflargescalewaterloggingwas30%.Dividingtheoccurrencerateoflargescalewaterloggingby
                 time ,theoccurrenceratewas50% inthefirst10years,30% inthemiddle10years,and20% inthe
                 rest20years.Thesignificantincreaseinriceplantingareafrom1990to2019wasthemainreasonforthe
                 decreaseintheincidenceduringthisperiod.Theresearchresultscanprovideacertainreferenceforflood
                 andwaterloggingcontrolfortheregionalfarmlands.
                 Keywords:characteristicsofrainfallinducedfloodandwaterlogging;rainfall;rainydays;incidenceof
                 waterlogging;SuibinCounty;theSanjiangPlain
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