学科分类
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1 个结果
  • 简介:Inthecontextofglobalcarboncyclemanagement,accurateknowledgeofcarboncontentinforestsisarelevantissueincontemporaryforestecology.Wemeasuredtheabove-groundandsoilcarbonpoolsinthedarkconiferousborealtaiga.Wecomparedmeasuredcarbonpoolstothosecalculatedfromtheforestinventoryrecordscontainingvolumestockandspeciescompositiondata.Theinventorydataheavilyunderestimatedthepoolsinthestudyarea(StolbyStateNatureReserve,centralKrasnoyarskTerritory,RussianFederation).Thecarbonpoolestimatedfromtheforestinventorydatavariedfrom25(tha-1)(low-densitystands)to73(tha-1)(highlystockedstands).Ourestimatesrangedfrom59(tha-1)(lowdensitystands)to147(tha-1)(highlystockedstands).Ourvaluesincludedlivingtrees,standingdeadwood,livingcover,brushwoodandlitter.Wefoundthattheproportionofbiomasscarbon(livingtrees):soilcarbonvariedfrom99:1to8:2forfullystockedandlow-densityforeststands,respectively.Thiscontradictsthecommonunderstandingthatthebiomassintheborealforestsrepresentsonly16–20%ofthetotalcarbonpool,withthebalancebeingthesoilcarbonpool.

  • 标签: 土壤碳库 针叶林 西伯利亚 地面 寒带 球碳