|Closed-path CO2 analyzers were calibrated against CO2 standard gasses once a day.|
Nakai Y., Kitamura K., Suzuki S. and Abe S. (2003) Year-long carbon dioxde exchange above a broadleaf deciduous forest in Sapporo, Northern Japan. Tellus, 55B, 305-312.
Watanabe T., Nakai Y., Kitamura K., Utsugi H., Tobita Hiroyuki., Ishizuka S. (2005) Scaling energy and CO2 fluxes from leaf to canopy using a Multilayered Implementation for Natural canopy-environment relations (MINCER). Phyton, 45, 353-360.
Utsugi H., Tobita H, Maruyama Y. and Ishizuka M. (2005) Spatial and Seasonal Variations in Leaf Mass per Area and Their Relationship to Leaf Nitrogen in a Secondary Northern Hardwood Forest in Japan. Phyton, 45, 245-251.
Ishizuka S, Sakata T, Sawata S, et al. (2006) High potential for increase in CO2 flux from forest soil surface due to global warming in cooler areas of Japan. Annals of Forest Science, 63 (5), 537-546.
Suzuki, S., Ishizuka, S., Kitamura, K., Yamanoi, K., Nakai, Y. (2006) Continuous estimation of winter carbon dioxide efflux from the snow surface in a deciduous broadleaf forest. Journal of Geophysical Research, 111(D17), D17101.
Japanese-American international comparison measurements, August 2001
Results of Japan-U.S. Inter-Comparison Measurements
Two AsiaFlux sites damaged by Typhoon SONGDA (Flash Report) by Y. OHTANI et al.
Damage by Typhoon 200418 at Sapporo-site, FFPRI Flux Net by Y. NAKAI et al.
|Tower, Electrical power (100V AC 50Hz), several people in maximum in the institute|
|Research grant #199903 (1999-2002) of the Forestry and Forest Products Research Institute|
|RR2002 (2002-2006) of Ministry of Education, Culture, Sports, Science and Technology|
|Research Fund (Evaluation, Adaptation and Mitigation of Global Warming in Agriculture, Forestry and FisheriesFResearch and Development) by Ministry of Agriculture, Forestry and Fisheries of Japan Grant-in-Aid for Scientific Research #193800950017 of JSPS|
|Global Environment Research Account for National Institutes of Ministry of the Environment|
|The forest around the tower received severe damage by the typhoon in September, 2003. Afterwards, the overturned trees have been left in the state of the nature. The observation was restarted in June, 2004.|