K05: Kubuqi shrubland
General site details
| Site name | Kubuqi shrubland |
|---|---|
| AsiaFlux site code | K05 |
| Location | Kubuqi desert, Inner Mongolia, China |
| Position | 108º 32' 55'' E, 40º 22' 51'' N |
| Elevation | 1164 m above sea level |
| Slope | N/A |
| Terrain type | Flat |
| Area | More than 100 ha |
| Fetch | 300 - 400 m |
| Climate | Temperate continental climate |
| Mean annual air temperature | 6.3 deg C |
| Mean annual precipitation | 300 mm |
| Vegetation type | Shrubland |
| Dominant Species (Overstory) | Artemisia ordosica |
| Dominant Species (Understory) | - |
| Canopy height | 0.8 - 1.2 m |
| Age | - |
| LAI | 0.20 (2006) |
| Soil type | Sandy soil |
Observation
Eddy Covariance method (CO2)
| System | Open- path system (CO2 flux, latent heat flux) |
|---|---|
| Wind speed | Three-dimensional sonic anemometer (CSAT-3, Campbell Scientific Inc., Logan, UT, USA) |
| Air temperature | Three-dimensional sonic anemometer (CSAT-3, Campbell Scientific Inc., Logan, UT, USA) |
| Water vapor | Open-path CO2/H2O analyzers (LI-7500, LI-COR, USA) |
| CO2 | Open-path CO2/H2O analyzers (LI-7500, LI-COR, USA) |
| Measurement height | 3.5 m |
| Sampling frequency | 10 Hz |
| Averaging time | 30 min |
| Data logger | CR5000 (CSI, USA) |
| Data storage | CF |
| Original data | Raw data |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| Global solar radiation(incoming) | 3.5 m | CNR1 (Kipp and Zonen, Delft, Holland) |
| Global solar radiation (outgoing) | 3.5 m | CNR1 (Kipp and Zonen, Delft, Holland) |
| Long-wave radiation(incoming) | 3.5 m | CNR1 (Kipp and Zonen, Delft, Holland) |
| Long-wave radiation(outgoing) | 3.5 m | CNR1 (Kipp and Zonen, Delft, Holland) |
| Net radiation | 3.5 m | CNR1 (Kipp and Zonen, Delft, Holland) |
| PPFD (incoming) | 3.5 m | Li190SB,Li-Cor Inc., Lincoln, NE, USA |
| PPFD (outgoing) | - | |
| Direct / diffuse radiation | - | |
| Direct / diffuse PPFD | - | |
| Air temperature | 1, 2, 4 m | HMP-45C, Vaisala, Helsinki, Finland |
| Humidity | 1, 2, 4 m | HMP-45C, Vaisala, Helsinki, Finland |
| Soil temperature | 5, 10, 20 cm | Model 107, Campbell Scientific Inc., Logan, UT, USA |
| Soil heat flux | 2 cm | HFT-3, Campbell Scientific Inc., Logan, UT, USA |
| Soil water content | 0-10 cm | Campbell Scientific Inc., Logan, UT, USA |
| Wind speed | 3.5 m | CSAT-3, Campbell Scientific Inc., Logan, UT, USA |
| Wind direction | 3.5 m | CSAT-3, Campbell Scientific Inc., Logan, UT, USA |
| Barometric pressure | - | |
| Precipitation | 4 m | TE525, Texas Electronics, Texas, USA |
| CO2 concentration | 3.5 m | Li 7500, Li-Cor Inc., Lincoln, NE, USA |
Other
| Soil respiration | Li6400 (LI-COR) |
| Photosynthesis | Li6400 (LI-COR) |
| Ecological investigation | LAI (Li3000A, LI-COR) |
Observation Period and Data Availability
| Measurement Period | from September 2005 to present |
|---|---|
| Measurement Frequency | Continuous |
| Data Availability | N/A |
Contact
Shiping Chen (spchen [at] ibcas.ac.cn) Institute of Botany, the Chinese Academy of Sciences20 Nanxincun, Xiangshan, Haidian District, Beijing 100093, P. R. China Tel: +86-10-62836279; Fax: +86-10-62599059
[Soil respiration and vegetation survey] Long Wei (johnweilong [at] ibcas.ac.cn)Institute of Botany, the Chinese Academy of Sciences20 Nanxincun, Xiangshan, Haidian District, Beijing 100093, P. R. China
Infrastructure
Tower, Electrical power (AC), Accommodation
Research Fund
The equipments of tower were funded by Institute of Botany, CAS; The maintenance of tower was partly supported by "100 Talents" project of CAS to Dr. Guanghui Lin and National Aeronautics and Space Administration (NASA) Grant (NEWS 2004 NRA: NN-H-04-Z-YS-005-N) of the Land-Cover / Land-Use Program
Calibration Information
Open-path analyzers were calibrated twice per year with standard CO2 gases and a dew point generator (LI610, LI-COR).