HBG: Haibei Potentilla fruticisa bosk Site
General site details
| Site name | Haibei Potentilla fruticisa bosk Site |
|---|---|
| AsiaFlux site code | HBG |
| Location | the northeastern part of the Qinghai-Tibetan Plateau |
| Position | 101°12' ~ 101°23'E, 37°29' ~ 37°45' N |
| Elevation | 756 m above sea level |
| Slope | |
| Terrain type | mild hypsography, flood land and low hills are dominant landscapes in this area |
| Area | |
| Fetch | |
| Climate | highland continental climate |
| Mean annual air temperature | - 1.7 deg C |
| Mean annual precipitation | 600 mm (long term) |
| Vegetation type | typical frigid vegetation of Northern Qinghai-Tibetan Plateau |
| Dominant Species (Overstory) | Potentilla fruticisa, Kobresia humilis, Kobresia tibetica |
| Dominant Species (Understory) | - |
| Canopy height | - |
| Age | - |
| LAI | - |
| Soil type | alpine meadow soil, alpine scrubby meadow soil, and swamp soil |
Observation
Eddy Covariance method (CO2)
| System | Open path combined with closed path system (CO2 flux, latent heat flux) |
|---|---|
| Wind speed | Three dimensional sonic anemometer (CSAT3, CAMPBELL SCIENTIFIC) |
| Air temperature | |
| Water vapor | Open and closed path CO2/H2O analyzers (LI-7500 and LI-7000, LI-COR) |
| CO2 | Open and closed path CO/H2O analyzers (LI-7500 and LI-7000, LI-COR) |
| Measurement height | 23 m, 39 m |
| Sampling frequency | 10 Hz |
| Averaging time | 30 min |
| Data logger | CR5000 (CSI USA) |
| Data storage | |
| Original data | Raw data |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| Global solar radiation(incoming) | 1.2 m | CM11 (Kipp & Zonen, The Netherlands) |
| Global solar radiation (outgoing) | ||
| Long-wave radiation(incoming) | 1.2 m | CM11 (Kipp & Zonen, The Netherlands) |
| Long-wave radiation(outgoing) | 1.2 m | CM11 (Kipp & Zonen, The Netherlands) |
| Net radiation | 1.2 m | CM11 (Kipp & Zonen, The Netherlands) |
| PPFD (incoming) | ||
| PPFD (outgoing) | - | |
| Direct / diffuse radiation | - | |
| Direct / diffuse PPFD | - | |
| Air temperature | 1.2 m. 2.2m | HMP45C, VAISALA, Finland |
| Humidity | 1.2 m. 2.2m | HMP45C, VAISALA, Finland |
| Soil temperature | -5cm,-10cm,-20cm,-40cm,-80cm/-2cm,-5cm,-10cm,-20cm,-50cm | Probe (105T/107, CAMPBELL SCIENTIFIC) |
| Soil heat flux | -5cm | Heat flux plate (HFP01, HUKSEFLUX) |
| Soil water content | -20 cm, -40cm | CS616, Campbell Scientific Inc., Logan, UT, USA |
| Wind speed | 1.2 m, 2.2m | Anemometer (A100R, VECTOR INSTRUMENTS) |
| Wind direction | 2.2 m | Wind vane (W200P, VECTOR INSTRUMENTS) |
| Barometric pressure | 1.2 m | Barometer (CS105, VAISALA) |
| Precipitation | 1.2 m | Tipping-bucket rain gauge (52203, RM YOUNG) |
| CO2 concentration |
Other
| Soil respiration | - |
| Photosynthesis | - |
| Ecological investigation | - |
Observation Period and Data Availability
| Measurement Period | |
|---|---|
| Measurement Frequency | Continuous |
| Data Availability | 2003-2004 in AsiaFlux database |
Contact
Xinquan Zhao (xqzhao[at]nwipb.ac.cn)
Northwest Plateau Institute of Biology, CAS
59 Xiguan Street, Xining, 810001, P.R.China
[Others]
Yingnian Li, Liang Zhao, Song Gu