Page 66 - 《水资源与水工程学报》2022年第6期
P. 66

! 33 " ! 6 #                      & ' ( ) & * + , -                               Vol.33No.6
               2022 $ 12 %              JournalofWaterResources&WaterEngineering                 Dec.,2022

            DOI:10.11705/j.issn.1672-643X.2022.06.08


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                 KLDMN:P426.2   OPQRS:A    OTUN:1672643X(2022)06006207

                        EstimationofriverevaporationlossintheCeleRiverBasin
                                              basedonstableisotopes

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                    LWengai ,LIUYunfei ,YINChangjun               ,GUIDongwei ,WANGPeng
              (1.StateKeyLaboratoryofDesertandOasisEcology,XinjiangInstituteofEcologyandGeography,ChineseAcademyofSciences,
                  Urumqi830011,China;2.CeleNationalStationofObservation&ResearchforDesertGrasslandEcosysteminXinjiang,
                           Cele848300,China;3.UniversityofChineseAcademyofSciences,Beijing100049,China)
                 Abstract:Inordertoexploretheverticalvariationofwaterevaporationlossesintheriverbasinofthe
                                                                                              18
                                                                                                     2
                 northernslopeofKunlunMountains ,theevaporationenrichmentmodelandstableisotope( Oand H)
                 methodswereusedtoanalyzetheisotopedataofdifferentwaterbodiesintheCeleRiverBasinfromMay
                 toDecember,2016.Thetemporalandspatialvariationcharacteristicsofisotopesindifferentwaterbodies
                 wasstudied,therechargesourcesofthebasinwasanalyzed,andtheevaporationlossesofisotopesindif
                 ferentaltitudeareaswereestimatedusingtheevaporationenrichmentmodel.Theresultsshowedthatthe
                 isotopecharacteristicsofdifferentwaterbodiesinthebasinshowedapatternofdilutioninthehighmoun
                 tainousareabutenrichmentinthedesertarea.Therewasaclosehydraulicconnectionbetweentheof
                 CeleRiverwaterandgroundwater ;theaverageevaporationlossoftheCeleRiverBasinatdifferentalti
                 tudeswas24.99% inthehighmountainousarea,29.04% inthemiddlemountainousareaand
                35.00% inthedesertarea.Theresultsareofgreatsignificanceforunderstandingregionalwaterbalance
                 anditsresponsetoclimatechangeinmountainecosystems.
                 Keywords:riverevaporationloss;stableisotope;evaporationenrichmentmodel;theCeleRiverBasin

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