The Korean Journal of Ecology

The Ecological Society of Korea (한국생태학회)
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Development and Validation of Hourly Based Sim-CYCLE Fine in a Temperate C3//C4 Coexisting Grassland

  • Lee, G.Z. (Institute of Biological Sciences, University of Tsukuba) ;
  • Lee, P.Z. (Institute of Biological Sciences, University of Tsukuba) ;
  • Kim, W.S (National Institute for Agro-Environmental Science) ;
  • Oikawa, T. (Institute of Biological Sciences, University of Tsukuba)
  • Published : 2005.12.31
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Abstract

We developed a local-scale ecophysiological model, Sim-CYCLE Fine by modifying Sim-CYCLE which was developed for a global scale simulation. Sim-CYCLE fine is able to simulate not only carbon fluxes but also plant growth with various time-steps from an hour to a month. The model outputs of $CO_2$ flux and biomass/LAI were highly reliable; we validated the model results with measurements from the eddy covariance technique and the harvest method ($R^2$ values of around 0.9 for both). The results suggested that the phonology and the seasonal dynamics of the $C_3/C4$ plant communities affected significantly the carbon fluxes and the plant growth during the plant growing season.

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References

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