NBB:Naeba Beech Forest Research Site
Gengeral site detail (Updated 17 October 2008) Site name
| Naeba Beech Forest Research Site | AsiaFlux site code
| NBB | | Location | Naeba, Niigata, Japan | | Position | 36° 52´ 43.8"' N, 138° 46´ 3.47" E,
(World Geodetic System 1984) | | Elevation | 900 m above sea level | | Slope | 10 degree | Terrain type
| slope | | Area | 900 m2 | | Fetch | - | | Climate | Cool temperate | Mean annual air temperature
| - | Mean annual precipitation
| - | Vegetation type
| Japanese Beech Forest | Domestic species (Overstory)
| Beech (Fagus crenata)
Oak (Quercus mongolica var. grosseserrata) | Dominant species (Understory)
| Bamboo (Sasa kurilensis ) | Canopy height
| 21 m | | Age | Ca. 85 years old | | LAI | About 7.5 (2006), 6.2 (2007) | Soil type
| Forest Brown Soil (Basalt) |
ObservationsEddy Covariance method (CO 2) | System | open-path system ( CO2 flux, latent heat flux) | Wind speed
| Three-dimensional sonic anemometer
(Csat3, Campbell, USA) | Air temperature
| Thermistor (RSH-1010, Tabai-Espec, Osaka, Japan) | Water vapor
| Open path analyzer (LI-7500) | | CO2 | Open path analyzer (LI-7500) | Measurement height
| 26 m | Sampling frequency
| 10 Hz | Averaging time
| 30 min | Data logger
| CR23X, cambell, USA | Data storage
| 2MB Memory stick | Original data
| Raw data
|
Meteorology Observation items
| Levels/ Depth
| Instrument
| Global solar radiation(incoming)
| 23 m (above canopy) | Pyranometer (LI-200SA, LICOR, USA) | Global solar
radiation (outgoing)
| 23 m (above canopy) | Pyranometer (LI-200SA, LICOR, USA) | Long-wave radiation(outgoing)
|
| | Long-wave radiation(outgoing)
| | | Net radiation
| - | | PPFD (incoming)
| 23 m (above canopy),
7 m (below canopy) | Quantum sensor (LI-190B, LI-COR, USA) | PPFD (outgoing)
| 23 m | Quantum sensor (LI-190B, LI-COR, USA) | Direct / diffuse radiation
| - | | Direct / diffuse PPFD
| 23 m (above canopy) | Quantum sensor with shadow band
(BF2, Delta-T, England) | Air temperature
| 23, 15, 5 m | Thermistor
(RSH-1010, Tabai-Espec, Osaka, Japan | | Humidity | 23, 15, 5 m | Capacitor sensors
(RSH-1010, Tabai-Espec, Osaka, Japan) | Soil temperature
| 5, 10, 25, 50, 100 cm | Waterproof thermistor (103-ETB, Semitec Ishizuka Electronics, Tokyo, Japan) | Soil heat flux
| -
| | Soil water
content
| 25 cm | Time-domain reflectometry (TDR) (ML2 Theta Probe, Delta-T, England) | Wind speed
| 23 m (above canopy) | Cup anemometers
(AN1, Delta-T, England) | Wind direction
| - | | Barometric
pressure
| 26m (above canopy) | In LI-7500 system | | Precipitation | 1.5 m | Tipping bucket rain gauges
(RG1, Delta-T, England) | CO2 concentration
| - | Open path analyzer (LI-7500) |
Other Soil respiration
| Continuous (automatic chambers) | | Photosynthesis | Frequently | Ecological investigation
| Tree DBH, stand density, biomass, LAI (since 2005 with seasonal curves) |
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Observation Period and Data Availability Measurement Period
| May 2009 to present
| Measurement Frequency
| Continuous | Data Availability
| N/A |
Contact Yoshitaka Kakubari (afykaku [at] agr.shizuoka.ac.jp)
Quan Wang (wangquan [at] agr.shizuoka.ac.jp)
Naramoto (naramoto [at] agr.shizuoka.ac.jp)
Atsuhiro Iio (atsuii [at] oagr.shizuoka.ac.jp)
Institute of Silviculture, Shizuoka University, Shizuoka 422-8529, Japan Tel: +81-2384840 Fax: +81-54-2384841 |
Infrastructure
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