Page 39 - 《水资源与水工程学报》2022年第2期
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DOI:10.11705/j.issn.1672-643X.2022.02.05
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HIAJK:TV213.9;TU992 LMNOP:A LQRK:1672643X(2022)02003510
Spatiotemporalheterogeneityofthedesignrainfallanditstotal
amountcontrolrateinNanningCity
1
1
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MAMi,YANGYunchuan 1,2,3,4 ,LIQianyun,ZHOUJinyu,WEIJiaoyin,
1
LIAOLiping 1,2,3,4 ,WEIJunpei
(1.SchoolofCivilEngineeringandArchitecture,GuangxiUniversity,Nanning530004,China;2.EngineeringResearchCenterof
WaterSecurityandIntelligentRegulationinKarstArea ,Nanning530004,China;3.KeyLaboratoryofEngineeringDisaster
PreventionandStructuralSafetyofMinistryofEducation,GuangxiUniversity,Nanning530004,China;4.GuangxiProvincial
KeyLaboratoryofDisasterPreventionandEngineeringSafety,Nanning530004,China)
Abstract:Thesingleandunifieddesignrainfallanditscontrolrateindicatorareconventionallyadopted
intheconstructionandeffectivenessevaluationofspongecityinChina ,whichmakesitdifficulttoeffec
tivelyguideandevaluatetheconstructionofdifferentLIDfacilitiesontheunderlyingsurface.Inviewof
thisproblem ,weanalyzedthespatiotemporalheterogeneitycharacteristicsofdailyrainfall,designrain
fallanditscontrolrate ,anddiscussedthequantitativeinfluenceofthecurrentunderlyingsurfacestorage
andpipenetworkdrainageonthecontrolrateindicatorinNanningurbanareausingArcGISspatialinter
polation,designrainfallandcontrolraterelationshipmethodandvolumemethod,basedonQuickBird
landuse,thefinedivisionofsubbasinsin2020andtheNanning0.1°CMFDgriddailyrainfallseries
from1981to2010.Theresultsshowthatthedailyrainfallfrequency,annualdistribution,designrainfall
anditscontrolrateofNanningurbanareaallshowedsignificantspatialandtemporalheterogeneity.The
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