Japan Geoscience Union Meeting 2015

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Symbol A (Atmospheric and Hydrospheric Sciences) » A-CG Complex & General

[A-CG30] Material circulations in Terrestrial Ecosystem: Water, Carbon and Nitrogen etc.

Mon. May 25, 2015 11:00 AM - 12:45 PM 301B (3F)

Convener:*Tomomichi Kato(Research Faculty of Agriculture, Hokkaido University), Takashi Hirano(Research Faculty of Agriculture, Hokkaido University), Hisashi Sato(Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)), Ryuichi Hirata(National Institute for Environmental Studies), Chair:Tomomichi Kato(Research Faculty of Agriculture, Hokkaido University)

11:00 AM - 11:15 AM

[ACG30-07] Long-term observation of CO2 flux over a larch forest in northern foot of Mt. Fuji

*Yoshiyuki TAKAHASHI1, Nobuko SAIGUSA1, Reiko IDE1, Ryuichi HIRATA1 (1.Center for Global Environmental Research, National Institute for Environmental Studies)

Keywords:carbon dioxide, flux, forest ecosystem, climate change, long-term monitoring, micrometeorology

Larch forest is representative vegetation type of widespread region in northeast Eurasia where vulnerability to climate change is expected to be significant. Since length of growing season of the vegetation is affected by temperature, evaluation of climate change feedback in the carbon exchange process in the ecosystem has great importance. National Institute for Environmental Studies has been operating long-term observation of CO2 flux over a larch plantation at the Fuji Hokuroku flux observation site in northern foot of Mt. Fuji since 2006. We have accumulated 9-year records of observational data set. The observation is to be continued until 2025. In this presentation, we will investigate year-to-year variation of CO2 exchange and its relationship with environmental factors based on the observational data.