[CBF]
Boreal Forest _ Chinese Boreal Forest Ecosystem Research Station

Eddy Correlation Method

System	Open-path system (CO2 and latent heat fluxes)
Wind speed	CSAT3 3-D SONIC Anemometer
Air temperature	HMP45C, Vaisala, Helsinki, Finland
Water Vapor	CS 7500 (LI-COR LI 7500 open-path CO2/H2O Analyzer)
CO2	CS 7500 (LI-COR LI 7500 open-path CO2/H2O Analyzer)
Measurement height	1.5, 35 m
Sampling frequency	10 Hz
Averaging time	30 min.
Data logger	CR5000
Data storage	2G PC card
Original data (Raw data or statistics)	10 Hz Raw data

Meteorology

Observation items	Levels / Depth	Instrument
Global solar radiation (incoming)	35 m	CNR1, Kipp & Zonen. Corp., Delft, Holland
Global solar radiation (outgoing)	35 m	CNR1, Kipp & Zonen. Corp., Delft, Holland
Long-wave radiation (incoming)	35 m	CNR1, Kipp & Zonen. Corp., Delft, Holland
Long-wave radiation (outgoing)	35 m	CNR1, Kipp & Zonen. Corp., Delft, Holland
Net radiation	35 m	CNR1, Kipp & Zonen. Corp., Delft, Holland
PPFD (incoming)	35 m	LI-190Sb，LI-COR Inc., Lincoln, NE, USA
PPFD (outgoing)	/	/
Direct/diffuse radiation	/	/
Direct/diffuse PPFD	/	/
Air temperature	1.5, 15, 25, 32 m	HMP45C, Vaisala, Helsinki, Finland
Humidity	1.5, 15, 25, 32 m	HMP45C, Vaisala, Helsinki, Finland
Soil temperature	0, 5, 10, 15, 20, 30 cm	107L, Campbell Scientific Inc., USA
Soil heat flux	8 cm	HFP01, Hukseflux Inc., Netherlands
Soil water content	8 cm	CS616, Campbell Scientific Inc., USA
Wind speed	1.5, 15, 25, 32 m	010C, Met One Instruments, Inc., Oregon, USA
Wind direction	32 m	020C, Met One Instruments, Inc., Oregon, USA
Barometric pressure	1 m	CS105, Vaisala, Helsinki, Finland
Precipitation	37 m	TE525, RM Young Inc., Traverse City, MI, USA
CO2 concentration	1.5 m	LI840, LI-COR Inc., Lincoln, NE, USA

Other

Soil respiration	LI-6400-09(Li-cor, Lincoln, NE, USA)
Photosynthesis	LI-6400R Portable Photosynthesis System(Li-cor, Lincoln, NE, USA)
Ecological Investigation	Biomass, Litter, Leaf area index, Chlorophyll