Page 46 - 《水资源与水工程学报》2024年第6期
P. 46
!35 "!6 # & ' ( ) & * + , - Vol.35No.6
2024 $ 12 % JournalofWaterResources&WaterEngineering Dec.,2024
DOI:10.11705/j.issn.1672-643X.2024.06.05
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3IJKL:P333 MNOPQ:A MRSL:1672643X(2024)06004212
Temporalandspatialevolutioncharacteristicsanddrivingfactorsof
wateryieldinresourcebasedcities :AcasestudyofDaqingCity
DONGSichun,QIYuxin,LIUYizhuo,KONGWeiying,HUYuandong
(CollegeofLandscapeArchitecture,NortheastForestryUniversity,Harbin150040,China)
Abstract:DaqingCityisatypicalresourcebasedcity,itisofgreatsignificanceforthemanagementand
planningofregionalwaterresourcestoexplorethetemporalandspatialdifferencesofthewateryieldof
thecityanditsdrivingmechanism.ThisstudyemploystheInVESTmodeltoevaluatethewateryieldof
DaqingCityin2000 ,2010and2020,andanalyzesitstemporalandspatialevolutioncharacteristics.At
thesametime,theinfluenceofvariousdrivingfactorsonwateryieldanditsspatialdistributioncharacter
isticsareinvestigatedbyGeoDetecorandmultiscalegeographicallyweightedregressionmodels.There
sultsshowthatthewateryieldofDaqingCityincreasedyearbyyearfrom2000to2020.Fromspatialper
spective ,thewateryieldwashighinthesoutheastandlowinthenorthwest.Theactualevapotranspira
tionwasthekeyfactorleadingtothechangeofwateryield ,showingasignificantnegativeeffect.Fol
lowedbyprecipitation,whichhadasignificantpositiveeffectonwateryield.Generallyspeaking,the
temporalandspatialpatternofwateryieldinthestudyareahaschangedsignificantly ,andclimatechange
astheprincipleclrivingforceplayedakeyroleinthechangeofwateryield.
Keywords:wateryield;InVESTmodel;GeoDetector;multiscalegeographicallyweightedregression;
DaqingCity
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