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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Spatiotemporaldifferencesinthesupplyanddemandpatternofcarbonsequestration
ecologicalservicesalongtheShaanxisectionoftheWeiRivermainstream
1,2
1,2
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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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