JAS:Jinzhou Agricultural Ecosystem ResearchStation General site detail (Updated 17 December 2007)
Site name
Jinzhou Agricultural Ecosystem Research Station
AsiaFlux site code
JAS
Location
Yingtun, Taihe District, Jinzhou, Liaoning province, China
Position
41º 49' N, 121º 12' E (GPS)
Elevation
17 m a.s.l.
Slope
0º
Terrain type
Alluvial plain
Area
Maize cropping zone
Fetch
200 m
Climate
Continental Semi-arid monsoon climate of warm temperate zone
Mean annual air temperature
9.5 deg
Mean annual precipitation
565.9 mm
Vegetation type
Cropland
Domestic species (Overstory)
Maize
Dominant species (Understory)
-
Canopy height
3.0 m
Age
1
LAI
5.1
Soil type
Typical brown soil
Observations Eddy Covariance method (CO2)
System
Open-path system (2002.12-2003.12.31)
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
3.5 m
Sampling frequency
10 Hz
Averaging time
30 min
Data logger
CR 5000, Campbell, USA
Data storage
1G PC card
Original data
Raw data
Meteorology
Observation items
Levels/ Depth
Instrument
Global solar radiation(incoming)
3.5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Global solar radiation (outgoing)
3.5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Long-wave radiation(incoming)
3.5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Long-wave radiation(outgoing)
3.5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
Net radiation
3.5 m
CNR1, Kipp & Zonen. Corp., Delft, Holland
PPFD (incoming)
4 m
LI-190Sb，LI-COR Inc., Lincoln, NE, USA
PPFD (outgoing)
-
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Air temperature
3.5, 5.0 m
HMP45C, Vaisala, Helsinki, Finland
Humidity
3.5, 5.0 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, Hukeflux Inc., Netherlands
Soil water content
10,20,30,40 cm
CS616, Campbell Scientific Inc., USA
Wind speed
3.5, 5.0 m
014A，Campbell Scientific Inc., MS, USA
Wind direction
3.5, 5.0 m
034B, Campbell Scientific Inc., MS, USA
Barometric pressure
3.5 m
CS 7500 (LI-COR LI 7500 CO2/H2O Analyzer)
Precipitation
70 cm
52203, RM Young Inc., Traverse City, MI, USA
CO2 concentration
-
Other
Soil respiration
Chamber method
Photosynthesis
LI-6400R Portable Photosynthesis System
Ecological investigation
Biomass, Height, Leaf area index, Soil features
Observation Period and data Availability
Measurement Period
October 2004 to present
Measurement Frequency
Continuous
Data Availability
N/A
Contact
Guangsheng ZHOU (gszhou [at] ibcas.ac.cn) Institute of Botany, the Chinese Academy of Sciences 20 Nanxincun, Xiangshan, Haidian District, Beijing 100093, China Tel: +86-10-62836268 Fax: +86-10-82595962 http://gcte.ibcas.ac.cn/ [in Chinese]
Rongping LI (rongpingli [at] 163.com) 66 Wenhua Road, Shenhe District, Shenyang 110016, Liaoning Province, China
Calibrations for all instruments would be done once a year
Research Fund
"Integrated observation and simulation on vegetation-atmosphere interactions over typical terrestrial ecosystems' funded by National Natural Science Foundation of China (40625015)
'Aridification in northern China and human being adaptation' funded by State Science and Technology Committee (2006CB400502)
'Mechanism of environmental pollution and ecological rehabilitation in Northeast industry base' funded by State Science and Technology Committee (2004CB418507-1)
