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JOP:Jambi Oil Palm Plantation
 
General site detail (Updated 9 June 2022)
 Site name
 Jambi Oil Palm Plantation
 AsiaFlux site code
 JOP
 Location Jambi Province on Sumatra Island, Indonesia
 Position 1°41'35.0'' S, 103°23'29.0'' E
 Elevation 76 m above sea level
 Slope ～ 3°
 Terrain type
 Flat
 Area 2186 ha
 Fetch 250 m
 Climate Tropical humid (Af)
 Mean annual air temperature
 26.7 ℃ ± 0.2℃
 Mean annual precipitation
 2235 mm yr-1 ± 381 mm
 Vegetation type
 Oil palm (Elaeis guineensis Jacq.) plantation
 Domestic species (Overstory)
 Oil palm (Elaeis guineensis Jacq)
 Dominant species (Understory)
 -
 Canopy height
 About 15 m
 Age 19 years
 LAI 3.64 m2m-2
 Soil type
 Loam Acrisols

Observations
Eddy Covariance Method (CO2)
 System Open-path system (CO2 flux, latent heat flux)
 Wind speed
 3-d sonic anemometer-thermometer
 (Metek-USA1, Elmshorn, Germany)
 Air temperature
 3-d sonic anemometer-thermometer
 (Metek-USA1, Elmshorn, Germany)
 Water vapor
 Open-path CO2/H2O gas analyzer LI7500A (LI-COR Inc,
 Lincon, USA)
 CO2 Open-path CO2/H2O gas analyzer LI7500A (LI-COR Inc,
 Lincon, USA)
 Measurement height
 22 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR3000 (Campbell Scientific, Logan, USA)
 Data storage
 GWDG (Göttingen University Computing Centre)
 Original data
 Raw data

Meteorology
 Observation items
 Levels / Depth
 Instrument
 Global solar radiation
 (incoming)
 22 m
 CNR4 Net Radiometer (Kipp&Zonen,
 Delft, Netherlands)
 Global solar radiation
 (outgoing)
 22 m
 CNR4 Net Radiometer (Kipp&Zonen,
 Delft, Netherlands)
 Long-wave radiation
 (incoming)
 22 m
 CNR4 Net Radiometer (Kipp&Zonen,
 Delft, Netherlands)
  Long-wave radiation
 (outgoing)
 22 m
 CNR4 Net Radiometer (Kipp&Zonen,
 Delft, Netherlands)
  Net radiation
 22 m
 CNR4 Net Radiometer (Kipp&Zonen,
 Delft, Netherlands)
  PPFD (incoming)
 22 m
 PQS1 Par Quantum Sensor 
 (Kipp&Zonen, Delft, Netherlands)
  PPFD (outgoing)
 22 m
 PQS1 Par Quantum Sensor 
 (Kipp&Zonen, Delft, Netherlands)
 Direct/diffuse radiation
 22 m
 BF5 Sunshine Sensor (Delta-T,
 Cambridge, UK)
 Direct/diffuse PPFD
 - -
 Air temperature
 0.9, 2.3, 8.1,
 12.3, 16.3, 22 m
 Hygro-thermo transmitters (type
 1.1025.55.000, Thies Clima, Göttingen,
 Germany)
 Humidity 0.9, 2.3, 8.1,
 12.3, 16.3, 22 m
 Hygro-thermo transmitters (type
 1.1025.55.000, Thies Clima, Göttingen,
 Germany)
 Soil temperature
 0.5, 0.3, 0.6, 1 m
 (four points)
 Soil Moisture&Temperature Probe Trime-
 Pico 32 (IMKO, Göttingen, Germany)
 Soil heat flux
 0.1 m
 (three points)
 Ground heat flux plate HFP01 (Huxeflux,
 Delft, Netherlands)
 Soil water content
 0.5, 0.3, 0.6, 1m
 (four points)
 Soil Moisture&Temperature Probe Trime-
 Pico 32 (IMKO, Göttingen, Germany)
 Wind speed
 2.3, 13, 15.4,
 18.5 m
 3-cup anemometers (Thies Clima,
 Göttingen, Germany)
 Wind direction
 15.4 m
 Wind direction transmitter (Thies Clima,
 Göttingen, Germany)
 Barometric pressure
 22 m
 Baro transmitter (Thies Clima,
 Göttingen, Germany)
 Precipitation 11.5 m
 (two points)
 Precipitation transmitter (Thies Clima,
 Göttingen, Germany)
 CO2 concentration
 0.65, 1.7, 3.2, 
 5.0, 7.1, 9.1, 11,
 16.6, 21.4 m
 LI840A infrared gas analyzer (LI-COR
 Inc, Lincon, USA)
 Infrared temperature
 22 m
 Infrared temperature sensor (IR100,
 Campbell Scientific, Logan, USA)

Fluxes of non-CO2 gases
 Gas N2O/CO (only August 2017 to April 2019)
 Method Laser spectrometer model 913-0014
 (Los Gatos Research, San Jose, USA)
 Measurement height
 22 m
 Data logger
 CR3000
 Data storage
 GWDG (Göttingen University Computing Centre)

Other
 Photosynthesis Leaf gas exchange measurements
 Ecological Investigation
 Sap flux in 2014

 
Observation Period and Data Availability
 Measurement Period
 Ongoing since March 2014
 Measurement Frequency
 Continuous
 Data Availability
 2014-2020 in AsiaFlux Database

Contact
 Alexander Knohl (aknohl [at] uni-goettingen.de)
 University of Goettingen, Bioclimatology, Faculty of Forest Sciences
 and Forest Ecology
 Büsgenweg 2, 37077 Göttingen, Germany
 Tel: +49-551-39-23682   Fax: +49-551-39-9619
 Christian Stiegler (christian.stiegler [at] biologie.uni-goettingen.de)
 University of Goettingen, Bioclimatology, Faculty of Forest Sciences
 and Forest Ecology
 Büsgenweg 2, 37077 Göttingen, Germany
 Tel: +49-551-39-12115   Fax: +49-551-39-9619
 Tania June (tania.june [at] yahoo.com)
 Department of Geophysics and Meteorology,
 Bogor Agricultural University
 Bogor, Indonesia

Calibration Information
 The open-path analyzer was calibrated approx. every two months
 with reference CO2 gas and H2O measurements were calibrated
 using a dew point generator.

 The N2O/CO sensor was calibrated every 6 months with N2O
 reference gas and H2O measurements were calibrated using a dew
 point generator.

Infrastructure
 Tower, Electrical power

Research Fund
 Deutsche Forschungsgemeinschaft (DFG, German Research
 Foundation) - project number 192626868 - SFB 990 and the Ministry
 of Research, Technology and Higher Education (Ristekdikti) in the
 framework of the collaborative German - Indonesian research project
 CRC990, sub-project A03.
 https://uni-goettingen.de/en/310995.html

Publication
 Meijide, A., Röll, A., Fan, Y., Herbst, M., Niu, F., Tiedemann, F.,
 Knohl, A. (2017). Controls of water and energy fluxes in oil palm
 plantations: Environmental variables and oil palm age. Agricultural
 and Forest Meteorology, 239, 71-85. doi:10.1016/j.agrformet.2017.
 02.034

 Stiegler, C., Meijide, A., Fan, Y., Ali, A. A., June, T., & Knohl, A.
 (2019). El Niño-Southern Oscillation (ENSO) event reduces CO2
 uptake of an Indonesian oil palm plantation. Biogeosciences, 16,
 2873-2890. doi:10.5194/bg-16-2873-2019
 
 Meijide A, de la Rua C, Guillaume T, Röll A, Hassler E, Stiegler C,
 Tjoa A, June T, Corre MD, Veldkamp E, Knohl A (2020). Measured
 greenhouse gas budgets challenge emission savings from palm oil
 biodiesel. Nature Communications 11(1), 1089. doi: 10.1038/
 s41467-020-14852-6.


 
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