河北省滨海盐沼生态系统碳储量分析研究

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中图分类号:X145;P74 文献标志码:A 文章编号:105-9857(2025)01-0156-09
AnalysisofCarbonStorageinCoastalSaltMarsh EcosysteminHebeiProvince
LYU Hongjuan,FAN Qianying,ZHANGSongyue
(HebeiProvinceBureauofGeologyandMineralResourcesSeventhGeologicalBrigade (HebeiProvinceBureauofGeologyandMineralExplorationandDevelopmentXionganGeological SurveyMonitoringCenter),Langfang)
Abstract:Coastalsaltmarshesarelocatedinthetransitionareabetwenseaandland,afected byperiodicorintermitentoceantidesandcoveredwithherbousorlowshrubs.Theyareanimportantpartofcoastalwetlandsandanimportantcarbonsinkarea,makinganimportantcontributiontotheglobalcarbonsink.ThestudyareaincludesthecoastalwetlandsofQinhuangdao, TangshanandCangzhouinHebeiProvince.Thedistributioncharacteristicsofcoastalsaltmarsh inHebeiProvinceweredeterminedbyremotesensingidentificationandon-siteverification,and thecharacteristicsofsaltmarshplantcommunitieswerestudiedandanalyzed.Thevegetation typeswerespartinaalterniflora,redandsaltmarsh,andthetotaldistributionareawas44.9 hm2 .Inthisstudy,79stationswerecolected,158biologicalsamplesand474sedimentsamples werecolected.Theabovegroundbiomas,undergroundbiomas,organiccarbonandsediment carbonreservesandtheirinfluencingfactorsofcoastalsaltmarshinHebeiProvincewereanalyzed.Basedonthecalculationresultsofvegetationcarbonbankandsedimentcarbonbankatal monitoringstationsofdiferentsaltmarshvegetationtypes,theaveragevegetationcarbondensityinSpartinaalternifloradistributionareawas 3.80MgC/hm2 ,thatinsaltlandbordusdistributionareawas 0.96MgC/hm2 ,andthatinreddistributionareawas 2.99MgC/hm2 .Acordingtotheregionalcalculation,thetotalcarbonstorageofsaltmarshecosysteminHebeiProvinceis 2.11±0.17 )thousandt.TheresearchresultsrevealtheorganiccarboncontentandcarbonstoragecharacteristicsofsaltmarshesincoastalzoneofHebeiProvince,whichcanprovide basicdatafortheasesmentofcarbonsinkcapacityofsaltmarshesandrestorationofdegraded saltmarshwetlandsinHebeiProvinceinthefuture.
Keywords:Coastalsaltmarsh,Ecosystemdistribution,Carbondensity,Carbonstorage
0 引言
联合国政府间气候变化专门委员会(Intergov-ernmentalPanelonClimateChange,IPCC)第五次报告指出,自工业化以来,大气中二氧化碳浓度已增加了 40% 。(剩余12913字)