SRK:Shirakami Beech Forest Site Gengeral site detail (Updated 27 April 2012)
Site name
Shirakami Beech Forest Site
AsiaFlux site code
SRK
Location
Ajigasawa, Aomori, JAPAN
Position
40° 33´ 56" N, 140° 7' 40" E
Elevation
340 m above sea level
Slope
15 degree
Terrain type
West facing slope of a mountain
Area
more than 4 km2
Fetch
more than 1 km
Climate
Cool temperate (Dfa)
Mean annual air temperature
8.6 degreeC (from January 2009 to December 2010)
Mean annual precipitation
probably around 3,000 mm
Vegetation type
Deciduous broadleaved forest
Domestic species (Overstory)
Japanese beech (Fagus crenata Blume), Japanese white bark magnolia (Magnolia obovata)
Dominant species (Understory)
-
Canopy height
about 25m
Age
Around 130 years for some tall beech trees (2012)
LAI
-
Soil type
-
Observations Eddy Covariance method (CO2)
System
Open-path eddy covariance system
Wind speed
Three-dimensional sonic anemometer-thermometer (81000, Young, USA)
Air temperature
Three-dimensional sonic anemometer-thermometer (81000, Young, USA)
Water vapor
Open-path infrared gas analyzer (LI-7500, LI-COR, USA)
CO2
Open-path infrared gas analyzer (LI-7500, LI-COR, USA)
Measurement height
32.5 m
Sampling frequency
10 Hz
Averaging time
30 min
Data logger
CR1000 (Campbell, USA)
Data storage
CF
Original data
Raw data
Meteorology
Observation items
Levels/ Depth
Instrument
Global solar radiation(incoming)
32 m
4 component net radiometer (MR-50, EKO, Japan)
Global solar radiation (outgoing)
32 m
4 component net radiometer (MR-50, EKO, Japan)
Long-wave radiation(outgoing)
32 m
4 component net radiometer (MR-50, EKO, Japan)
Long-wave radiation(outgoing)
32 m
4 component net radiometer (MR-50, EKO, Japan)
Net radiation
-
PPFD (incoming)
32 m
Quantum sensor (ML-020P, EKO, Japan; June 2009 to present)
PPFD (outgoing)
32 m
Quantum sensor (ML-020P, EKO, Japan; June 2009 to present)
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Air temperature
32, 28 20,10 m
Platinum resistance thermometer (HMP45A for 32, 28 m and HMP155 for 20, 10 m, Vaisala, Finland)
Humidity
32, 28 20,10 m
Capacitive hygrometer (HMP45A for 32, 28 m and HMP155 for 20, 10 m, Vaisala, Finland)
Soil temperature
1,5,10, 20,40 cm
Five temperature data loggers (UA-001-64, Onset, USA)
Soil heat flux
1 cm
Four thermopile heat flux sensors (MF-81,EKO,Japan)
Soil water content
0-10 cm
Time-domain refrectometers (CS-616, Campbell, USA)
Wind speed
-
Wind direction
-
Barometric pressure
-
Precipitation
28 m
Tipping-bucket rainguage (CTK-15PC, Climatec, Japan) (heater not operated)
CO2 concentration
-
snow depth
6 m
Sonic snow depth meter (SR50A, Campbell, USA)
Other
Soil respiration
Measured by closed chamber system several times a year from 2010 to 2011.
Photosynthesis
-
Ecological investigation
Species and GBH within the area of 30,000 m2 around the flux tower, once a year since 2009.
Observation Period and Data Availability
Measurement Period
from August 2008
Measurement Frequency
Continuous
Data Availability
-
Contact
Sachinobu Ishida (ishida [at] hirosaki-u.ac.jp) Graduate School of Science and Technology, Hirosaki University 3 Bunkyo-cho, Hirosaki, Aomori, 036-8561, Japan Phone and Fax: +81-172-39-3621
Daiyu Ito (daiyu [at] hirosaki-u.ac.jp) Teaching and Research Center for Bio-coexistence, Faculty of Agriculture and Life Science, Hirosaki University 7-1, Shimobukuro, Fujisaki, Fujisaki, Aomori, 038-3802, JAPAN
Infrastructure
Tower 34m (Stairs not equipped) Electric Power: Batteries(DC12V) + Solar panels