YLF: Yakutsk Spasskaya Pad larch

General site detail (Updated 30 June 2015)
 Site name
 Yakutsk Spasskaya Pad larch
 AsiaFlux site code
 Location Yakutsk Siberia, Russia
 Position 62º 15' 18" N, 129º 14' 29" E
 Elevation 220 m above sea level
 Slope flat
 Terrain type
 Fetch Several kilometers
 Climate subarctic climate, snow - fully humid- cool summer  Dfd
 Mean annual air temperature
 Mean annual precipitation
 Vegetation type
 Larch forest
 Domestic species (Overstory)
 Dahurica larch (Larix gmlinii)
 Dominant species (Understory)
 Canopy height
 18 m
 Age N/A
 LAI 3.71 m2 m-2 (PAI) in the folicated season and 1.71 m2 m-2 in the leafless season
 Soil type

Eddy Covariance method (CO2)
 System Closed-path system 
 Wind speed 
 Three-dimensional sonic anemometer-thermometer  
 (DA600, KAIJO, Japan)
 Air temperature
 Three-dimensional sonic anemometer-thermometer  
 (DA600, KAIJO, Japan)
 Water vapor
 Open-path CO2/H2O (LI-7500, LI-COR, USA)
 CO2 Open-path CO2/H2O (LI-7500, LI-COR, USA)
 Measurement height
 32 m
 Sampling frequency
 10 Hz
 Averaging time
 13.677 min
 Data logger
 Data storage
 Original data

 Observation items
  Levels/ Depth
 Global solar radiation(incoming)
 32 m Pyranometer
 (CM6F, Kipp & Zonen, Netherland)
 Global solar 
radiation (outgoing)
 28 m Pyranometer
 (CM6F, Kipp & Zonen, Netherland)
 Long-wave radiation(incoming) 
 32 m Pyrgeometer (MS-201F,EKO,Japan)
  Long-wave radiation(outgoing) 28 m Pyrgeometer (MS-201F,EKO,Japan)
 Net radiation
 32 m Radiometer (Q7, REBS)
 PPFD (incoming)
 PPFD (outgoing)
 Direct / diffuse  radiation
 Direct / diffuse  PPFD
 Air temperature
 31.4, 24.6, 5.7,  1.8 m Platinum resistance thermometer and  capacitive  hygrometer
 (CVS-HMP-450, Vaisala)
 Humidity 31.4, 24.6, 5.7,  1.8 m Platinum resistance thermometer and  capacitive  hygrometer
 (CVS-HMP-450, Vaisala)
 Soil temperature
 0, 0.1, 0.2, 0.4,  0.6,  0.8, 1.2 m TS101, Hakusan Kougyo
 Soil heat flux
 0.05 m 
 MF81 (EKO, Japan)
 Soil water 
 0.1, 0.2, 0.4, 0.6, 0.8 m TDR sensor (TRIME, IMKO)
 Wind speed
 32.0, 27.0,  24.8, 14.9,  5.7, 1.9 m 3-cups anemometer
 (AG750, Makino, Japan)
 Wind direction
 32 m WS-104, Makino, Japan
 Precipitation - 
 32 m CO2/H2O analyzer
 ( LI-7500 LI-COR, USA)
 Stem flow  Heat pulse method
 Throughfall two points 0.17 × 5.70 m trough
 Evapotranspiration  from forest floor two points Plastic pan (0.165 m in diameter, 0.075 m deep)
 Canopy surface temperature  4000/4GL; Everest
 Soil respiration
 Photosynthesis -
 Ecological investigation
Observation Period and data Availability
 Measurement Period
 from September 1996 -
 Measurement Frequency
 Data Availability
 2004-2007 in AsiaFlux DataBase ,http://www.agr.nagoya-u.ac.jp/~wecnof/index.html
-Trofim C. Maximov ( t.c.maximov[at]ibpc.ysn.ru)
-Ayumi Kotani (kotani [at] agr.nagoya-u.ac.jp)
 Graduate School of Bioagricultural Sciences,Nagoya University
 Furo-cho, Chikusa-ku, 464-8601
 Tel & Fax : +81-052-789-4059
 Hironori Yabuki (yabuki [at] jamstec.go.jp)
 IORGC/JAMSTEC2-15 Natsushima-cho, Yokosuka,Kanagawa
 237-0061TEL: 046-867-9268FAX: 046-867-9255
 Tower, Solar energy system

 Research Fund
 Japan Science and Technology Agency (JST) Core Research for  Evolutional Science and Technology (CREST) Program

 [Effects of Rainfall Variability on Water Cycle and Ecosystem in  Tropical Rain Forest under Asian Monsoon Climate]

 [Field and modelling studies on the effect of forest devastation on  flooding and environmental issues]

 IORGC (Institute of Observational Research for Global Change)  Hydrological Cycle Observational Research Program / JAMSTEC  (Japan Agency for Marine-Earth Science and Technology)

Ohta, T., Hiyama, T., Tanaka, H., Kuwada, T., Maximov, TC., Ohata, T. and Fukushima Y. 2001. Title: Seasonal variation in the energy and water exchanges above and below a larch forest in eastern Siberia. HYDROLOGICAL PROCESSES 15: 1459-1476.

Ohta, T., Maximov, T.C., A. Dolman, A.J., Nakai, T., van der Molen, M.K., Kononov, A.V., Maximov, A.P., Hiyama, T., Iijima, Y., Moors, E.J., Tanaka, H., Toba, T., Yabuki, H. 2008. Interannual variation of water balance and summer evapotranspiration in an eastern Siberian larch forest over a 7-year period (1998?2006). Agric. For. Meteorol., 140: 1941-1953.

Matsumoto, K., Ohta,T., Nakai, T., Kuwada, T., Daikoku, K., Iida, S., Yabuki, H., Kononov, A.V., van der Molen, M.K., Kodama, Y., Maximov,T.C., A Dolman, A.J., Hattori S. 2008. Responses of surface conductance to forest environments in the Far East. Agric. For. Meteorol., 140: 1926-1940.

Matsumoto, K., Ohta, T., Nakai, T., Kuwada, T., Daikoku, K., Iida, S., Yabuki, S., Kononov, A.V., van der Molen, M.K., Kodama, Y., Maximov, T.C., Dolman, A.J., Hattori, S. 2008. Energy consumption and evapotranspiration at several boreal and temperate forests in the Far East. Agric. For. Meteorol., 140: 1978-1989.

Nakai, T., Sumida, A., Daikoku, K., Matsumoto, K., van der Molen, M.K., Kodama, Y., Kononov A.V., Maximov, T.C., Dolman, A.J., Yabuki, H., Hara, T., Ohta, T. 2008. Parameterization of aerodynamic roughness over boreal, cool- and warm-temperate forests. Agric. For. Meteorol., 140: 1916-1925.