Fujiyoshida forest meteorology research site is located in Fujiyoshida city, Yamanashi Pref. which is on Kenmarubi lava flow in Mt. Fuji. The dominant species is red pine and there are also mixed evergreen and deciduous broadlef trees such as holly and azalea. Because of its high altitude (1000m), the climate is relatively cold for its latitude and snowdepth reaches up to 0.5m in winter. Soil is poorly developed due to underneath volcanic lava, land surafce is covered with a very thin layer of liter and its decomposing materials. We are measureing CO₂ and energy balance in this red pine forest.

This research site is registered to AsiaFlux/JapanFlux and Phenological Eyes Network, or PEN, (Site Code:FJY) and it is also a part of associate site of JaLTER (Site Code:FKJ). Participating in terrestrial observation networks across a range of research area brings us a strong collaboration with different study field.

Inter-comparison measurements were conducted using the portable flux observation system  which was developed to provide an on-site reference for quality control of observed flux data and to standardize the measurement systems.
Inter-comparison measurement in September and November 2007 
Inter-comparison measurement in April 2010 

In mid-September 2010, spectroscopic characteristic and canopy structure of a red pine forest were observed from the air using a radio control helicopter by research members of Center for Environmental Remote Sensing, Chiba University.
More details 

In July 2010, carbon and oxygen isotope ratio in CO₂; hydrogen and oxygen isotope ratio in H₂O of atmosphere in various heights; and; carbon and oxygen isotope ratio in CO₂ of sampling air in leaf-chamber were observed using a laser spectrometer. Simultaneously, photosynthesis and transpiration rates were measured by a gas Analyzer.
More details 

Visitors 

MIZOGUCHI Yasuko, OHTANI Yoshikazu, TAKANASHI Satoru, IWATA Hiroki, YASUDA Yukio, NAKAI Yuichiro(2012): Seasonal and interannual variation in net ecosystem production of an evergreen needleleaf forest in Japan. Journal of Forest Research, 17(3):283-295.

MIZOGUCHI Yasuko, OHTANI Yoshikazu, NAKAI Yuichiro, TAKANASHI Satoru, IWATA Hiroki, YASUDA Yukio, NAKANO Takashi, YASUDA Taisuke, WATANABE Tsutomu (2011): Climatic characteristics of the Fujiyoshida forest meteorology research site. Mount Fuji Research, 5:1-6

OHTANI Yoshikazu, MIZOGUCHI Yasuko, WATANABE Tsutomu, YASUDA Yukio (2005): Parameterization of NEP for gap filling in a cool-temperate coniferous forest in Fujiyoshida, Japan. Journal of Agricultural Meteorology, 60(5):769-772

OHTANI Yoshikazu, SAIGUSA Nobuko, YAMAMOTO Susumu, MIZOGUCHI Yasuko, WATANABE Tsutomu, YASUDA Yukio, MURAYAMA Shohei (2005): Characteristics of CO₂ fluxes in cool-temperate coniferous and deciduous broadleaf forests in Japan. Phyton, 45(4):73-80

IWATA Hiroki, ASANUMA Jun, OHTANI Yoshikazu, MIZOGUCHI Yasuko, YASUDA Yukio (2009): Vertical Length Scale of Transporting Eddies for sensible Heat in the Unstable Roughness Sublayer Over a Forest Canopy. Journal of Agricultural Meteorology, 65(1):1-9

HAN Qingmin, KAWASAKI Tatsuro, NAKANO Takashi, CHIBA Yukihiro (2008): Leaf-age effects on seasonal variability in photosynthetic parameters and its relationships with leaf mass per area and leaf nitrogen concentration within a Pinus densiflora crown. Tree Physiology, 28(4):551-558

TANABE Hiromi, ABE Yoshiko, NAKANO Takashi, TANGE Takeshi (2006): Carbon and nitrogen changes in A0 horizons in a Pinus densiflora forest established on a Mt.Fuji lava flow. Japanese Journal of Forest Environment, 48(1):1-8

OHTSUKA Toshiyuki, GOTO Takehiro, SUGITA Mikio, NAKAJIMA Takafumi, IKEGUCHI Hitoshi (2003): The origin of pine forest on Ken-marubi lava flow on the lower slopes of Mt.Fuji. Vegetation Science, 20:43-54 [in Japanese with an English abstract]

- Major Facility Installation for Carbon Dioxide Monitoring, Forestry Agency, MAFF*

- Research Grant, FFPRI

- Research Fund (Evaluation, Adaptation and Mitigation of Global Warming in Agriculture, Forestry and Fisheries: Research and Development), MAFF*

- Global Environment Research Account for National Institutes, MOE**

- Global Environment Research Fund, MOE**

- Grants-in-Aid for Scientific Research, MEXT***

Satoru TAKANASHI, Takafumi MIYAMA, Yasuko MIZOGUCHI, Yoshikazu OHTANI, Yuichiro NAKAI

Cooperative Researchers

Takashi NAKANO, Taisuke YASUDA (Yamanashi Institute of Environmental Sciences), Toshiyuki OHTSUKA (Gifu University)

Forest Meteorology Lab.,
Department of Disaster Prevention, Meteorology and Hydrology,
Forestry and Forest Products Research Institute (FFPRI)
Address: 1 Matsunosato, Tsukuba, Ibaraki, 305-8687 JAPAN
+81-298-73-3211 (main)
email: