Page 61 - 《水资源与水工程学报》2025年第2期
P. 61

!36 "!2 #                         & ' ( ) & * + , -                               Vol.36No.2
               2025 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2025

            DOI:10.11705/j.issn.1672-643X.2025.02.07


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                 FGHIJ:X171.1   KLMNO:A    KPQJ:1672643X(2025)02005709

            Spatiotemporaldifferencesinthesupplyanddemandpatternofcarbonsequestration
                  ecologicalservicesalongtheShaanxisectionoftheWeiRivermainstream

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              BAIHaoran ,LIHuaien ,CHENGBo ,CHENGWenjuan ,DUANQingzhi ,YANDandan
                             (1.Xi’anUniversityofTechnology,Xi’an710048,China;2.StateKeyLaboratoryof
                               WaterEngineeringEcologyandEnvironmentinAridArea ,Xi’an710048,China)
                 Abstract:CarbonstoragemoduleinInVESTmodelandArcGISwereemployedtoanalyzetheregional
                 variationsandsupply-demandmatchingofcarbonsequestrationitemsofecosystemservices.Theland
                 use ,carbondensity,andcarbonemissiondataof2010,2015,and2020in22districtsandcountiesin
                 ShaanxiProvincewereselectedfortheanalysis.Theresultsshowthatthetotalsupplyofcarbonseques
                                                                     6
                                                      6
                 trationservicesdecreasedfrom24.6614×10to23.8044×10tfrom2010to2020;whereasthedemand
                                         6
                                                       6
                 increasedfrom18.9881×10 to29.0765×10 t,exhibitingasignificantspatiotemporalmismatch.From
                                                                                  2
                2010to2020,thecarbonsequestrationperunitareadecreasedby44.49t/km,andthecarbonemission
                                                  2
                 perunitareaincreasedby523.76t/km,whichaggravatedtheimbalancebetweensupplyanddemandof
                 carbonsequestrationservices.Thedeficitofcarbonsequestrationservicesinthestudyareacontinuedto
                 spread ,especiallyinthecentralurbanagglomerationswhichshowedanobviousdeficittendencycaused
                 byexcessivecarbonemission.Thisstudycanprovideasupportforthemanagementofregionalecological
                 developmentplanning ,optimizationandcoordinationofregionalresourceallocation,aswellasimplemen
                 tationofregionalcarboncompensation.
                 Keywords:carbonsequestration;ecosystemservice;supply-demandmatching;Shaanxisectionofthe
                 WeiRiver



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