Response of seedlings growth ofPinus sylvestriformis to atmospheric CO2 enrichment in Changbai Mountain
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The biomass and ratio of root-shoot ofPinus sylvestriformis seedlings at CO2 concentration of 700 μL·L−1 and 500 μL·L−1 were measured using open-top chambers (OTCs) in Changbai Mountain during Jun. to Oct. in 1999. The results showed that doubling CO2 concentration was benefit to seedling growth of the species (500 μL·L−1 was better than 700 μL·L−1) and the biomass production was increased in both above-ground and underground parts of seedlings. Carbon transformation to roots was evident as rising of CO2 concentration.
Key wordsPinus sylvestriformis Biomass allocation Atmospheric CO2 enrichment
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