PRW: Paddy rice flux plot _ Panjin Wetland Ecosystem Research Station General site detail (Updated 17 December 2007)
Site name
Paddy rice flux plot _ Panjin Wetland Ecosystem Research Station
AsiaFlux site code
PRW
Location
Shuangtai Estuary National Nature Reserve, Panjin, Liaoning province, China
Position
41º 08.7' N, 121º 54.9' E (GPS)
Elevation
7 m a.s.l. (GPS)
Slope
0º
Terrain type
AreaAlluvial plain
Area
750 km2
Fetch
350 m
Climate
Continental semi-humid monsoon climate of warm temperate zone
Mean annual air temperature
8.6°C
Mean annual precipitation
631 mm
Vegetation type
Rice paddy
Domestic species (Overstory)
Oryza sativa L.
Dominant species (Understory)
-
Canopy height
90 cm
Age
-
LAI
7
Soil type
Paddy soil
Observations Eddy Covariance method (CO2)
System
Open-path system
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
3 m
Sampling frequency
10 Hz
Averaging time
30 min
Data logger
CR 5000
Data storage
PC card
Original data
Raw data
Meteorology
Observation items
Levels/ Depth
Instrument
Global solar radiation(incoming)
5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Global solar radiation (outgoing)
5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Long-wave radiation(outgoing)
5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Long-wave radiation(outgoing)
5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Net radiation
5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
PPFD (incoming)
6.5 m
LI-190Sb，LI-COR Inc., Lincoln, NE, USA
PPFD (outgoing)
-
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Air temperature
4, 6.5 m
HMP45C, Vaisala, Helsinki, Finland
Humidity
4, 6.5 m
HMP45C, Vaisala, Helsinki, Finland
Soil temperature
5, 10, 15, 20, 40, 80 cm
107L, Campbell Scientific Inc., USA
Soil heat flux
8 cm
HFP01, Hukseflux Inc., Netherlands
Soil water content
5 cm
CS616, Campbell Scientific Inc., USA
Wind speed
4, 6.5 m
014A, Campbell Scientific Inc., MS, USA
Wind direction
6.5 m
034B, Campbell Scientific Inc., MS, USA
Barometric pressure
3 m
CS 7500 (LI-COR LI 7500 CO2/H2O Analyzer)
Precipitation
Above the canopy
52203, RM Young Inc., Traverse City, MI, USA
CO2 concentration
-
Other
Soil respiration
Chamber
Photosynthesis
LI-6400R Portable Photosynthesis System
Ecological investigation
Biomass, Height, Leaf area index, Soil physical and chemistry properties, Soil microbial features
Observation Period and data Availability
Measurement Period
June 2004 to present
Measurement Frequency
Continuous
Data Availability
N/A
Contact
Guangsheng ZHOU (gszhou [at] ibcas.ac.cn) Key Laboratory of Vegetation and Environmental Change, Institute of Botany,the Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, Haidian District, Beijing 100093, China
Xiaoying Wang (wangxy_0917 [at] yahoo.com.cn) Xianli ZHAO (zhaoxianli2001 [at] yahoo.com.cn) Institute of Atmospheric Environment, China Meteorological Administration, Shenyang, 66 Wenhua Road, Shenhe District, Shenyang 110016, Liaoning Province, China
Other Yanbing Xie (xieyanbing1979 [at] yahoo.com.cn)
Calibration Information
Calibrations for all instruments would be done once a year
Infrastructure
EC-tower and micrometeorological tower
Research Fund
'Mechanism of environmental pollution and ecological rehabilitation in Northeast industry base' funded by State Science and Technology Committee (2004CB418507-1)
