FFA: Fujisaki Farm Apple Orchard General site detail (Updated 17 January 2018)
Site name
Fujisaki Farm Apple Orchard
AsiaFlux site code
FFA
Location
Fujisaki town, Aomori Prefecture, JAPAN
Position
40º 39' 17" N, 140º 29' 7" E
Elevation
20 m above sea level
Slope
0 degree
Terrain type
Almost Flat
Area
30,000m2
Fetch
50-200 m
Climate
Cfa
Mean annual air temperature
10.1 deg C
Mean annual precipitation
1183 mm
Vegetation type
Deciduous fruit tree orchard
Domestic species (Overstory)
Apple (Inter-row distance and between-tree distance of 7.0 m and 5.0m near the flux tower, in 2012)
Dominant species (Understory)
Kentucky bluegrass (mowed 5 times a year)
Canopy height
4.0 m
Age
32 years near the flux tower in 2012
LAI
0-4 for apple tree depending on season
Soil type
Alluvial soil
Observations Eddy Covariance method (CO2)
System
Open-path system
Wind speed
Three-dimensional sonic anemometer-thermometer (DA600- 3T Probe TR-61C, KAIJO, Japan or 81000, Young, USA)
Air temperature
Three-dimensional sonic anemometer-thermometer (DA600- 3T Probe TR-61C, KAIJO, Japan or 81000, Young, USA)
Water vapor
Open-path analyzer (LI-7500, LI-COR, USA)
CO2
Open-path analyzer (LI-7500, LI-COR, USA)
Measurement height
9.0 m
Sampling frequency
10 Hz
Averaging time
30 min
Data logger
From 2006 to 2012: (NR-1000, Keyence, Japan)
Data storage
PC (from 2006-2012), FC (from 2012-)
Original data
Raw data
Meteorology
Observation items
Levels/ Depth
Instrument
Global solar radiation(incoming)
9 m
4 component net radiometer (MR-50, EKO, Japan)
Global solar radiation (outgoing)
9 m
4 component net radiometer (MR-50, EKO, Japan)
Long-wave radiation(incoming)
9 m
4 component net radiometer (MR-50, EKO, Japan)
Long-wave radiation(outgoing)
9 m
4 component net radiometer (MR-50, EKO, Japan)
Net radiation
-
-
PPFD (incoming)
-
PPFD (outgoing)
-
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Air temperature
2.5, 3.5, 4.5, 5.5, 7.0 and 9.0 m
HMP45A, HMP233 and HMP155 (Vaisala, Finland)
Humidity
2.5, 3.5, 4.5, 5.5, 7.0 and 9.0 m
HMP45A, HMP233 and HMP155 (Vaisala, Finland)
Soil temperature
0.01 and 0.03 m
Platinum resistance thermometer
Soil heat flux
0.05 m
Five thermopile heat flux sensors (MF-81,EKO,Japan)
Soil water content
0.3-0.6 m
From 2011: Two tensiometers at 0.3m and another two at 0.6m (DIK-3021, Daiki, Japan)
Wind speed
4.5, 5.5, 7.0 and 9.0 m
From 2006 to 2010: 3-cups anemometer (AF750, Makino, Japan) From 2012: Sonic anemometer (81000, Young, USA, and WMT52, Vaisala, Finland)
Wind direction
4.5.5.5, 7.0 m and 9.0 m
From 2012: Sonic anemometer (81000, Young, USA, and WMT52, Vaisala, Finland)
Barometric pressure
-
Precipitation
-
CO2 concentration
4.5, 5.5, 7.0 and 9.0 m
Infra red gas infraredanalyzer (LI820, Li-cor, USA)
Other
Soil respiration
5 days a month from 2006 to 2009 by open chamber method
Photosynthesis
-
Ecological investigation
-
Observation Period and data Availability
Measurement Period
From September 2006 to May 2015
Measurement Frequency
Continuous
Data Availability
N/A
Contact
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 Shitafukuro, Fujisaki, Fujisaki, Minamitsugaru, Aomori 038-3802 JAPAN
Sachinobu Ishida (ishida [at] hirosaki-u.ac.jp) Graduate School of Science and Technology, Hirosaki University 3 Bunkyo-cho, Hirosaki, Aomori 036-8561 JAPAN
Research Fund
Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science and Technology