Page 62 - 《水资源与水工程学报》2023年第1期
P. 62
!34 " ! 1 # & ' ( ) & * + , - Vol.34No.1
2023 $ 2 % JournalofWaterResources&WaterEngineering Feb.,2023
DOI:10.11705/j.issn.1672-643X.2023.01.07
6T[4UµVµ¾ÑÍÆH<¥CiRS
———
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( ,-ÑÒie 121Ä%&el, ,- Ïh 730070)
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´»¼@]µ@, +^»¼íY!up ——— A'åS»p)ÙS、 |S êÎp, bk'Ú P、 ÙSÚ Y、
|SÚ RÈ~5¥ëf|Sêñòa。 ÃijÅ: A'SqºB 1956-2019 ã|SÚ§¤ÇøÛ9
^ç,1987 ã<L×ê;SWATн、 ~v¬%½¥ô»û¾ 0.78、0.79,Nash-Suttcliffe ¥ô»û¾ 0.78、
0.77, :ÌabÖ9
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Ó89(12.08%), ó$|SÚOPäZ; ÙSÚåøó¨vóÛ±ê, 6Q¾ 214.18、179.43、81.16mm;
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FGHIJ:P333 KLMNO:A KPQJ:1672643X(2023)01005808
Spatiotemporalcharacteristicsofwateryieldandrunoffand
theirrelationshipinregionswithscarcedata :
AcasestudyofTaoheRiverBasin
MAYali,NIUZuirong,WANGXingfan,ZHANGRui,SUNDongyuan,ZHENGZhiqin
(CollegeofWaterConservancyandHydropowerEngineering,GansuAgriculturalUniversity,Lanzhou730070,China)
Abstract:Inordertosolvetheproblemofanalyzingthetemporalandspatialcharacteristicsofwateryield
andrunoffintheabsenceofdata,variousmethods,includingSWATmodel,multivariatestatisticalanal
ysis ,correlationcoefficientmethod,andelasticanalysismethod,wereusedtoanalyzethespatialand
temporalvariationsofwateryieldandrunoffofeachsectionintheTaoheRiverBasin ,soastorevealthe
relationshipamongprecipitation (P),wateryield(Y)andrunoff(R),andtheinfluencingfactorsof
runoffchangeinregionswithscarcedata.TheresultsshowedthattherunoffofHongqiStationintheTao
heRiverBasindecreasedsignificantlyoverallfrom 1956to2019,andanabruptchangeoccurredin
1987.ThedeterminationcoefficientsofSWATmodelwere0.78and0.79 ,andNash-Suttcliffecoeffi
cientswere0.78and0.77intheperiodofvalidationandcalibration ,respectively,andalltherelative
errorswerelessthan10%,sothesimulationresultsweresatisfactory.Themiddlereachesaccountedfor
thelargestproportionofrunoff(50.71%),followedbytheupperreaches(37.21%)andthelowerrea
ches(12.08%),therefore,themiddlereacheswerethemainsourceoftherunoff.Thewateryieldde
creasedfromtheupstreamtothedownstream ,whichwas214.18,179.43and81.16mm,respectively.
ThewateryieldintheDaisangRiverBasinwasthelargest ,whereasthatintheChaheRiverandDongyu
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04); ,-0:;+<67./(21YF5NA015);,-012*e?~+^X3#hr67./(GSAU-
JSYF-2021-016)
+,-.: ù/á(1987-), A, 'ðn½E, ÀN, +^µf¾1Uf1YZ。
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