Page 57 - 《水资源与水工程学报》2022年第6期
P. 57
! 33 " ! 6 # & ' ( ) & * + , - Vol.33No.6
2022 $ 12 % JournalofWaterResources&WaterEngineering Dec.,2022
DOI:10.11705/j.issn.1672-643X.2022.06.07
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KLDMN:TV121 OPQRS:A OTUN:1672643X(2022)06005309
Characteristicsandattributionanalysisofrunoffchangesinthemiddle
andupperreachesofCao ’eRiverfrom1980to2018
1,2
3
LIUYang ,HANXiaoxu,LILijuan 1
(1.KeyLaboratoryofWaterCycleandRelatedLandSurfaceProcesses,InstituteofGeographicScienceandNaturalResourcesResearch,
ChineseAcademyofSciences,Beijing100101,China;2.CollegeofResourcesandEnvironment,UniversityofChineseAcademyof
Sciences,Beijing100049,China;3.ChinaUrbanConstructionDesign&ResearchInstituteCo.,Ltd.,Beijing100120,China)
Abstract:Waterresourcesareofvitalimportancetothedevelopmentofhumansociety.Masteringthe
ruleofriverrunoffchangesisthebasisforachievingsustainableuseofwaterresources.Thecurrentre
searchonrunoffchangesinvolvesthreeaspects,namely,theinterannualchangeofrunoff,theannual
distributioncharacteristicsofrunoff,andtheattributionanalysisofrunoffchanges.Basedonthemonthly
runoffdataofShengzhouStation (SZ),HuangzeStation(HZ)andHuashanStation(HS)from1980to
2018,therunoffchangesinthemiddleandupperreachesoftheCao’eRiverareinvestigatedusingava
rietyofresearchmethods.Theresultsshowthattheannualaveragerunoffshowedadownwardtrend,
whichchangedthegreatestatHZ,followedbyHSandSZ.Theaveragerunoffofallthreestationsalso
changedseasonally,whichshowedasignificantdownwardtrendinspring,butthatofHZshowedasig
nificantupwardtrendinwinter.BothSZandHSexperiencedanabruptchangeinannualaveragerunoff
in2003 ,whereasHZhadnoobviousabruptchange.Thedistributionprocesscurveofrunoffindifferent
periodsshowedapatternof“threepeaks”withthecharacteristicsof“low-high-low”,whichhappened
inMarchtoApril ,JuneandAugusttoSeptember,respectively.ForSZandHS,humanactivitieswere
themainreasonforthereductionofrunoffduringthechangeperiod ,whereasthereductionofrainfallwas
responsibleforthatforHS.
Keywords:annualrunoffchange;annualdistibutionofrunoff;attributionanalysis;theCao’eRiver
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