CM2: Dongtan Monitoring Station of Global Carbon Flux, Chongming, Shanghai No.2
General site details
| 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 |
| Dominant 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) |
Observation
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 (outgoing) | 4.7 m | CNR1, Kipp and Zonen, Delft, Holland |
| Global solar radiation(incoming) | 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 |
| CO2 concentration | 4.8 m | Li 7500, Li-Cor Inc., Lincoln, NE, USA |
| H2O concentration | - |
Other
| Soil respiration | Soil respiration Li6400, Li-Cor Inc., Lincoln, NE, USA |
| Photosynthesis | Li8100, Li-Cor Inc., Lincoln, NE, USA |
| Ecological investigation | Li8100, 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.
Publication
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.