YLF: Yakutsk Spasskaya Pad larch
General site details
| Site name | Yakutsk Spasskaya Pad larch |
|---|---|
| AsiaFlux site code | YLF |
| Location | Yakutsk Siberia, Russia |
| Position | 62º 15' 18" N, 129º 14' 29" E |
| Elevation | 220 m above sea level |
| Slope | flat |
| Terrain type | - |
| Area | |
| Fetch | Several kilometers |
| Climate | subarctic climate, snow - fully humid- cool summer Dfd |
| Mean annual air temperature | - |
| Mean annual precipitation | - |
| Vegetation type | Larch forest |
| Dominant Species (Overstory) | Dahurica larch (Larix gmlinii) |
| Dominant Species (Understory) | Vactinium |
| 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 | - |
Observation
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 | - |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| 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,Japa |
| Long-wave radiation(outgoing) | 28 m | Pyrgeometer (MS-201F,EKO,Japa |
| 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 content | 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 |
| Barometric pressure | - | |
| Precipitation | - | |
| CO2 concentration | 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 |
Other
| Soil respiration | - |
| Photosynthesis | - |
| Ecological investigation | - |
Observation Period and Data Availability
| Measurement Period | from September 1996 - |
|---|---|
| Measurement Frequency | Continuous |
| Data Availability | 2004-2007 in AsiaFlux DataBase ,http://www.agr.nagoya-u.ac.jp/~wecnof/index.html |
Contact
-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
http://www.agr.nagoya-u.ac.jp/~wecnof/index.html
Hironori Yabuki (yabuki [at] jamstec.go.jp)
IORGC/JAMSTEC2-15 Natsushima-cho, Yokosuka,Kanagawa
237-0061TEL: 046-867-9268FAX: 046-867-9255
Infrastructure
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)
Publication
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