CM2: Dongtan Monitoring Station No2

General site detail (Updated 19 Feburuary 2007)
 Site name
 Dongtan Monitoring Station of Global Carbon Flux,  Chongming, Shanghai No.2
 AsiaFlux site code
 CM2
 Location East shore of Chongming Island, Shanghai, China
 Position  31º 35.079' N,121º 54.207' E
 (World Geodetic System 1984)
 Elevation 31.37m (World Geodetic System 1984)
 Slope Plane and flat (<1%)
 Terrain type
 Flat
 Area 230 km2
 Fetch 220m for NE, 300m for SW, 500m for SE andNW
 Climate Semitropical monsoon climate
 Mean annual air temperature
 15.7 ºC (2005)
 Mean annual precipitation
 2074 mm (2005)
 Vegetation type
 Brackish marsh
 Domestic species (Overstory)
 Spartina alterniflora, Phragmites australis
 Dominant species (Understory)
 -
 Canopy height
 Up to 1.5 to 2.5 m
 Age -
 LAI -
 Soil type
 Clay loam (Wu et al., 2005)

Observations
Eddy Covariance method (CO2)
 System Open-path system
 Wind speed
  3 - axis Ultrasonic anemometer
 Air temperature
  3 - axis Ultrasonic anemometer
 Water vapor
 Open-path infrared gas analyzer
 CO2 Open-path infrared gas analyzer
 Measurement height
 4.8 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR5000 (Campbell,USA)
 Data storage
 CF
 Original data
 Binary data files, Excel worksheets

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 4.7 m  CNR1, Kipp and Zonen, Delft, Holland
 Global solar 
radiation (outgoing)
 4.7 m  CNR1, Kipp and Zonen, Delft, Holland
 Long-wave radiation(outgoing) 
 4.7 m  CNR1, Kipp and Zonen, Delft, Holland
 Long-wave radiation(outgoing) 
 4.7 m  CNR1, Kipp and Zonen, Delft, Holland
 Net radiation
 - 
 PPFD (incoming)
 4.7 m Li190SB,Li-Cor Inc., Lincoln, NE, USA
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 1.6, 2.8, 4.7 m HMP-45C, Vaisala, Helsinki, Finland
 Humidity 1.6, 2.8, 4.7 m HMP-45C, Vaisala, Helsinki, Finland
 Soil temperature
  5cm before  Mar. 2006 ; 1,  5, 10 after that
 Model 107, Campbell Scientific Inc., Logan, UT,  USA
 Soil heat flux
  5cm before  Mar. 2006 ; 1,  5, 10 after that HFT-3, Campbell Scientific Inc., Logan, UT, USA
Soil water 
 content 
 -
 
 Wind speed
 4.8 m CSAT-3, Campbell Scientific Inc., Logan, UT,  USA
 Wind direction
 4.8 m CSAT-3, Campbell Scientific Inc., Logan, UT,  USA
 Barometric 
 pressure
 - 
 Precipitation 4.5 m TE525, Texas Electronics, Texas, USA
 COconcentration
 4.8 m  Li 7500, Li-Cor Inc., Lincoln, NE, USA
 H2O concentration
 - 
Other
 Soil respiration
 Li6400, Li-Cor Inc., Lincoln, NE, USA
 Photosynthesis Li8100, Li-Cor Inc., Lincoln, NE, USA 
 Ecological investigation
 Li2000, Li-Cor Inc., Lincoln, NE, USA
 
Observation Period and data Availability
 Measurement Period
 August 2004-
 Measurement Frequency
 Continuous
 Data Availability
 Available, please contact the  following address.  
Contact
 ZHAO, Bin (zhaobin [at] fudan.edu.cn)
 Institute of Biodiversity Science,
 School of Life Science, Fudan University,
 220 Handan Road, Shanghai 200433, P.R. China
 Tel: +86-21-65642263-2, Fax: +86-21-65642468
 http://www.ibsfu.fudan.edu.cn
 Guo Haiqiang (042023099 [at]fudan.edu.cn) 
 School of Life Science
 Institute of Biodiversity Science,Fudan University
 Fudan University, Shanghai, 200433, R.P.China
 Tel: +86-21-55664671, Fax: +86-21-65642468
 Calibration Information
 Li7500 on November 27th to December 7th 2005.


Publications
Wu, J.H., Fu, C.Z., Lu, F., Chen, J.K., 2005. Changes in free-living nematode community structure in relation to progressive land reclamation at an intertidal marsh. Appl. Soil Ecol. 29(1), 47-58.