Analysis of Impact of Mixed Rare Tree Species and Eucalyptus on Ecosystem Biomass and Carbon Storage
[Objective]The aim was to explore the impact of mixed afforestation of precious tree species and eucalyptus on the biomass and carbon storage of ecosystems.[Method]Taking Huangmian Forest Farm in Guangxi as example,this study took pure eucalyptus forest(A1),mixed eucalyptus and red cone forest(A2),and mixed eucalyptus and lotus forest(A3)as research objects to analyze the density and growth indicators of tree species,biomass of the ecosystem,and carbon storage of the ecosystem under different forest stands.[Result]In terms of growth indicators,the DBH,tree height and chest height of eucalyptus in A2 and A3 were higher than those in A1,and the differences were significant(P<0.05).In terms of total ecosystem biomass,A2 and A3 were significantly higher than A1,and the difference was significant(P<0.05).In terms of total carbon storage of different stand ecosystems,A2 and A3 were significantly higher than A1(P<0.05).[Conclusion]To increase the biomass and carbon storage of the ecosystem,precious tree species could be mixed with eucalyptus trees during afforestation in forest farms,which could further improve the quality of artificial forest construction,create good interspecific interaction relationships,and improve the effectiveness and utilization of resources.After the mixed afforestation of precious tree species and eucalyptus trees,the biomass and carbon storage of the ecosystem are higher,which could promote the maintenance of ecological balance.
Precious tree speciesEucalyptus treesMixed breedingEcosystemBiomassCarbon storage
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