Regional Variability in the Terrestrial Carbon-Cycle Response to Global Warming in the 21st Century : Simulation Analysis with AOGCM-Based Climate Projections

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概要

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• Regional variability in the carbon-cycle response of terrestrial ecosystems to global warming was simulated with a spatially explicit, process-based model (Sim-CYCLE), and analyzed for 22 regions worldwide. The terrestrial net flux of carbon dioxide (CO_2) during the period 2001-2099, was globally simulated on the basis of greenhouse gas emission scenarios (IPCC-SRES), and climate projections by coupled atmosphere-ocean general circulation models (AOGCMs). Most terrestrial ecosystems acted as net carbon sinks but with different magnitudes among the experiments (globally, 24 to 286 Pg C). Substantial inter-regional variability was found in terrestrial carbon-cycle response, because of differences in biome distributions and climate-change regimes. Moreover, among the experiments using the same CO_2 scenario, but different AOGCM climate projections, inconsistent results were obtained in the Amazon basin, Africa, Australia, and northern Asia, indicating the need for further research.

• 社団法人日本気象学会の論文
• 2005-04-25

著者

• Ito Akihiko

  Frontier Research Center For Global Change Japan Agency For Marine-earth Science And Technology

関連論文

• Seasonal variation in leaf properties and ecosystem carbon budget in a cool-temperate deciduous broad-leaved forest : simulation analysis at Takayama site, Japan
• Regional Variability in the Terrestrial Carbon-Cycle Response to Global Warming in the 21st Century : Simulation Analysis with AOGCM-Based Climate Projections

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