NRW: Natural reed flux plot _ Panjin Wetland General site detail (Updated 17 December 2007)
Site name
Natural reed flux plot _ Panjin Wetland Ecosystem Research Station
AsiaFlux site code
NRW
Location
Shuangtai Estuary National Nature Reserve, Panjin, Liaoning province, China
Position
41º 08.4' N, 121º 54.7' E (GPS)
Elevation
7 m a.s.l. (GPS)
Slope
0º
Terrain type
AreaAlluvial plain
Area
900 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
Type Reed marsh
Domestic species (Overstory)
Phragmites australis
Dominant species (Understory)
-
Canopy height
3 m
Age
-
LAI
4
Soil type
Silty clay
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
4.5 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
4.5 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
LI-8100 automated soil CO2 flux system
Photosynthesis
LI-6400R Portable Photosynthesis System(Li-cor, Lincoln, NE, USA)
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
Bingrui JIA(jiabingrui [at] ibcas.ac.cn) Institute of Atmospheric Environment, China Meteorological Administration, Shenyang, 66 Wenhua Road, Shenhe District, Shenyang 110016, Liaoning Province
Wenying Yu (wuying0636 [at] sina.com) Institute of Atmospheric Environment, China Meteorological Administration, Shenyang, 66 Wenhua Road, Shenhe District, Shenyang 110016, Liaoning Province
Other
Li ZHOU (zhouli [at] yahoo.cn), Guohong LV (lgh7210 [at] yahoo.com.cn)
Calibration Information
Calibrations for all instruments would be done once a year
Infrastructure
EC-tower and micrometeorological tower
Research Fund
'Integrated observation and simulation on vegetation-atmosphere interactions over typical terrestrial ecosystems' funded by National Natural Science Foundation of China (40625015)
'Observation system development of soil carbon budget over reed marsh in Panjin wetland' funded by China Meteorological Administration
'Mechanism of environmental pollution and ecological rehabilitation in Northeast industry base' funded by State Science and Technology Committee (2004CB418507-1)
