基于InVEST模型的石羊河上游產(chǎn)水量驅(qū)動因素識別

基于InVEST模型的石羊河上游產(chǎn)水量驅(qū)動因素識別Title:IdentificationofDrivingFactorsforWaterYieldintheUpperReachesofShiYangRiverbasedonInVESTModelAbstract:ThewateryieldintheupperreachesoftheShiYangRiverplaysacrucialroleinsustainingthelivelihoodsofcommunitiesandecosystemsdownstream.Identifyingthedrivingfactorsthatinfluencewateryieldisessentialforeffectivewatershedmanagementandsustainablewaterresourceallocation.ThisstudyaimstoutilizetheInVESTmodeltoidentifyandanalyzethekeyfactorsthatdrivewateryieldintheupperreachesoftheShiYangRiver.Basedonthefindings,recommendationscanbemadetoenhancewateryield,ensuringasustainablewatersupplyforvariousstakeholders.1.Introduction:TheShiYangRiverisavitalfreshwatersourceintheregion,servingasacriticalsupportsystemforbothhumansocietyandtheenvironment.However,theupperreachesoftheriverfacewaterscarcitychallengesduetothecomplexinterplayofvariousfactorslikeclimatechange,landusechanges,andhydrologicalprocesses.Recognizingthesedrivingfactorsandtheirimpactsonwateryieldisessentialforeffectivemanagementstrategies.2.Methodology:TheInVEST(IntegratedValuationofEcosystemServicesandTradeoffs)modelisemployedinthisstudytoquantifywateryieldandidentifyitsdrivingfactors.InVESTisanopen-sourcesoftwaredevelopedbyNaturalCapitalProjectthatintegratesspatiallyexplicitmodelsforassessingandmappingecosystemservices.Themodelutilizesvariousinputdatalayers,includingtopography,climatedata,landuse/landcover,andsoilcharacteristics,tosimulatewateryieldinthestudyarea.3.ResultsandAnalysis:TheresultsoftheInVESTmodelanalysisrevealthefollowingkeydrivingfactorsaffectingwateryieldintheupperreachesoftheShiYangRiver:3.1ClimateFactors:Temperatureandprecipitationpatternssignificantlyinfluencewateryield.Changesintemperatureandrainfallcanimpactsnowmelt,groundwaterrecharge,andevapotranspirationprocesses,therebyalteringwateravailability.3.2LandUse/LandCoverChanges:Landuseandlandcoverchanges,suchasdeforestation,urbanization,andagricultureexpansion,cansubstantiallyimpactwateryield.Vegetationplaysacrucialroleinregulatingwaterbalancethroughinterception,evapotranspiration,andinfiltrationprocesses.Vegetationcoverlossleadstoincreasedrunoffandreducedwatersupply.3.3SoilCharacteristics:Soilproperties,includingtexture,organicmattercontent,andinfiltrationcapacity,haveadirectimpactonwateryield.Soilswithhighinfiltrationratesandwater-holdingcapacitiespromotegroundwaterrechargeandsubsequentwateravailability.4.Discussion:TheidentificationofthesedrivingfactorsprovidesvaluableinsightsforwatershedmanagementandwaterresourceallocationintheupperreachesoftheShiYangRiver.Tomaintainandenhancewateryield,thefollowingmanagementstrategiesarerecommended:4.1ConservationandRestorationofVegetationCover:Initiativesfocusedonreforestation,afforestation,andconservingexistingforestscanimprovewateryieldbyregulatinghydrologicalprocessesandreducingsurfacerunoff.4.2ClimateChangeAdaptation:Adaptationmeasuresshouldbeimplementedtomitigatetheimpactsofclimatechangeonwateryield.Thismayincludedevelopingdrought-resistantcrops,improvingwaterstorageandirrigationfacilities,andpromotingwater-efficientpractices.4.3SoilHealthandConservation:Soilconservationpractices,suchasterracing,contourfarming,anderosioncontrolmeasures,canenhancesoilhealthandincreasewaterinfiltrationrates,ultimatelycontributingtoimprovedwateryield.5.Conclusion:ThisstudyutilizedtheInVESTmodeltoidentifythedrivingfactorsinfluencingwateryieldintheupperreachesoftheShiYangRiver.Thefindingshighlightedthesignificanceofclimatefactors,landuse/landcoverchanges,andsoilcharacteristicsinwateryielddynamics.Therecommendationsprovidedcanguidestakeholdersandpolicymakersinimplementingeffectivewatershedmanagementstrategiestoensureasustainable