Overview (Brochure (PDF))

The Center for Global Environmental Research (CGER) began observations of the effects of canopy opening on a larch forest ecosystem structure and functions in cooperation with Hokkaido University and Hokkaido Electric Power Co. in 2001 and now we continue with Hokkaido UNiversity. The observations at Teshio experimental forest started in 2001, and the forest was clear-cut and planted in 2003. We monitor and evaluate the changes in forest ecosystem structure and functions on a regional scale by applying particular techniques such as the eddy covariance method and remote sensing.

Observation site

Location Teshio Experimental Forest, Toikanbetsu, Horonobe, Hokkaido, Japan
Latitude and Longitude :  45°03' 21"N, 142° 06' 26"E
Elevation: 70 m
Land 14 ha
Gradient: about 8 degree
Vegetation Before clear-cutting
*Dominant species: Conifer-hardwood mixed forest (Quercus crispula, Betula ermanii, Picea jezoensis)
*Tree age: 165 year-old Quercus, DBH: 58 cm
*Other species: Conifer-hardwood mixed forest(Quercus crispula, Betula ermanii, Picea jezoensis)
*Forest floor: Sasa senanensis and Sasa kurilensis
After planting
*Dominant species: Hybrid larch(Larix gmelinii x L.kaempferi)
*Tree age: 2 years old (October 2003) and 2.5-3 m in 2007
*Other species: row planting of hybrid larch in sasa community
*Forest floor: Sasa senanensis and Sasa kurilensis

Mean annual air temperature 5.7℃ (2003-2005)
Annual precipitation 836mm (2003-2005)
Annual global solar radiation 3925MJm-2(2003-2005)

Observation Facilities

Monitoring Tower 31m
Voltage AC100 and 200V are available.
Communication Internet access (3G) is available
Monitoring office and accommodation Two cabins (12 m2) in the forest. Accommodation is available for 15 people.

Observation System

Teshio system


CO2sequestration capacity of forest
The spectral vegetation indexes
The spectral vegetation indexes

Photo Gallery