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DOI for Scientific and Technical Data
https://www.doi.org/10.4228/ZALF.DK.143
Title
A novel robotic chamber system allowing to accurately and precisely determining spatio-temporal CO2 flux dynamics of heterogeneous croplands
Citation
Shrijana Vaidya, Marten Schmidt, Peter Rakowski, Gernot Verch, Jürgen Augustin, Michael Sommer, Mathias Hoffmann, Norbert Bonk (2020) A novel robotic chamber system allowing to accurately and precisely determining spatio-temporal CO2 flux dynamics of heterogeneous croplands. Leibniz Centre for Agricultural Landscape Research (ZALF) https://www.doi.org/10.4228/ZALF.DK.143

Citation from DataCite
Creator(s)
Vaida, Shrijana
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Schmidt, Marten
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Rakowski, Peter
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Verch, Gernot
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Augustin, Jürgen
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Sommer, Michael
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Hoffmann, Mathias
ORCID:0000-0002-2776-1403
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Bonk, Norbert
Publisher
Leibniz Centre for Agricultural Landscape Research (ZALF)
Dates
Collected: 04-2018/09-2018
PublicationYear
2020
Contributor(s)
HostingInstitution: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1

Subject(s)
AGROVOC: primary productivity, net primary productivity; ecosystem; respiration; erosion
GEMET: respiration; soil erosion; agricultural management 
Other: Chamber measurement, Gross primary productivity; Ecosystem respiration; Net Ecosystem Exchange
Description
Abstract:
Current approaches to measure and quantify CO2 flux dynamics of agricultural landscapes e.g., eddy covariance, manual and automatic chamber systems have limitations in either accounting for small scale spatial heterogeneity (eddy covariance and automatic chambers) or short-term temporal variability (manual chambers). Although automatic chambers are in principle capable to detect small-scale spatial differences of CO2 flux dynamics in a sufficient temporal resolution, they are usually limited to only a few spatial repetitions. To overcome these limitations, a novel robotic chamber system for CO2 gas exchange measurements was developed which is capable to detect short term temporal dynamics and small scale spatial heterogeneity. This datasets contains data of weather conditions, measured CO2 flux (Net Ecosystem Exchange - NEE and ecosystem respiration - Reco) and modelled CO2 exchange obtained from the measurements that were conducted from 08/07/2019 to 9/09/2019 for spring barley within the hummocky ground moraine landscape of northeastern Germany (CarboZALF-D). The soil and erosion stages of the study area are classified as Calcaric Regosol (RZ; extremely eroded), Nudiargic Luvisol (eLL; strongly eroded) and Calcic Luvisol (LL; non-eroded).
Funding Reference
funderName: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany)

funderName: Fachagentur Nachwachsende Rohstoffe e.V. (FNR)
awardTitle: Verminderung der Umwelt- und Klimawirkung des Anbaus von Rohstoffpflanzen durch Nutzung der Vorteilswirkungen optimierter Verfahren der Krumenvertiefung
awardNumber: 22404117
Related Identifier
IsCitedBy DOI: https://doi.org/10.1016/j.agrformet.2020.108206
Language
English
Geolocation
Holzendorf near Dedelow, Germany
Data Format
csv
Size
3 tables
Type of Resource
Dataset: Table
Structure of Data Table(s)
Table Weather_Data
Column name Unit Description Instrument Method Reference
Date_Time - Date and time, format: "dd.mm.YYYY HH:MM" - - -
Air_Temp200_Avg °C Air temperature in °C averaged in half hour steps 107, Campbell Scientific Inc. Sensor: BetaTherm 100K6A1IA Thermistor temperature measurement -
PAR_out_Avg µmol m-2 s-1 Photosynthetic active radiation (400 nm - 700 nm; outside chamber) averaged in half hour steps SKP215, Skye Instruments Ltd. radiation measurement -
RH_Avg % Relative humidity averaged in half hour steps weather transmitter WXT 520 humidiity measurement -
Precipitation mm d-1 Precipitation in mm weather transmitter WXT 520 precipitation measurement  

Table Measured_CO2_flux

Column name Unit Description Instrument Method Reference
Date_Time - Date and time, format: "dd.mm.YYYY HH:MM" - - -
Soil_type - Nudiargic Luvisol (eLL), Calcic Luvisol (LL) and Calcaric Regosol (RZ) literature description after FAO standards IUSS Working Group WRB, (2006): World reference base for soil resources 2006 - A framework for international classification, correlation and communication , Rome, Food and Agriculture Organization of the United Nations.
Plot_name - Measured 36 plots (e.g., "eLL_1_N-S_1”, “RZ_3_N-S_4”, etc.) - - -
ID - Measurement ID - - -
Chamber - H1 (measuring northern two rows) and H2 (measuring southern two rows) - - -
Flux_type - Flux type (0=Reco;1=NEE) - calculated -
Measured_Reco_NEE_flux µmol m-2 s-1 Measured R/sub> or NEE flux (according to "Flux_type") in µmol m-2 s-1) Infrared gas analyzer (LI-COR 850, Licor Biosciences, UK) infrared gas analysis https://www.licor.com/env/products/gas_analysis/LI-830_LI-850/
FLUX_start_concentration ppmv CO2 starting concentration in ppmv (inside chamber) Infrared gas analyzer (LI-COR 850, Licor Biosciences, UK) infrared gas analysis https://www.licor.com/env/products/gas_analysis/LI-830_LI-850/
Slope_linear_regression - Slope of linear regression applied on measured CO2 concentration change over measurement time of a measurement - calculated -
P_value_slope - p-value of the slope of the applied linear regression - calculated -
P_square_flux - r2 of the applied linear regression - calculated -
Mean_PAR µmol m-2 s-1 Mean photosynthetic active radiation in µmol m-2 s-1 of the identified flux - calculated -
Temperature_IN °C Mean air temperature in °C (inside chamber) for the identified flux - calculated -
Temperature_variation °C Air temperature variation in °C for the identified flux - calculated -
Temperature_OUT °C Mean air temperature (outside chamber) in °C for the identified flux - calculated -

Table Modelled CO2 exchange
Column name Unit Description Instrument Method Reference
Date_Time   Date and time, format: "dd.mm.YYYY HH:MM" - - -
Soil_type   (Nudiargic Luvisol (eLL), Calcic Luvisol (LL) and Calcaric Regosol (RZ) literature description after FAO standards IUSS Working Group WRB, (2006): World reference base for soil resources 2006 - A framework for international classification, correlation and communication , Rome, Food and Agriculture Organization of the United Nations.
Chamber   H1 (measuring northern two rows) and H2 (measuring southern two rows) - - -
Plot_Name   Measured 36 plots (e.g., "eLL_1_N-S_1”, “RZ_3_N-S_4” etc.) - - -
Reco g C m-2 0.5h-1 Modelled Reco flux in C m-2 0.5h-1 script Calculated http://www.doi.org/10.4228/ZALF.2011.339
GPP g C m-2 0.5h-1 Modelled GPP flux in C m-2 0.5h-1 script Calculated http://www.doi.org/10.4228/ZALF.2011.339
NEE g C m-2 0.5h-1 Modelled NEE flux in C m-2 0.5h-1 script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Best_fit_int_rev_up   Best-fit temperature for Reco modelling ("IN" or "OUT") of the next campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Best_fit_int_rev_down   Best-fit temperature for Reco modelling ("IN", or "OUT") of the previous campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Rref_OUT...IN_int_rev_up   Rref-parameter of best-fit temperature fit for Reco  during next campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Rref_OUT...IN_int_rev_down   Rref-parameter of best-fit temperature fit for Reco during previous campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
EO_OUT...IN_int_rev_up E0-parameter of best-fit temperature fit for Reco during next campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
EO_OUT...IN_int_rev_down   E0-parameter of best-fit temperature fit for Reco during previous campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Flux_AVG_int_rev_up µmol m-2 s-1 Mean Reco flux of the next campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Flux_AVG_int_rev_down µmol m-2 s-1 Mean Reco flux of the previous campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
a_GPP_int_rev_up   Alpha parameter of GPP fit with photosynthetic active radiation (PAR) during next campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
a_GPP_int_rev_down   Alpha parameter of GPP fit with photosynthetic active radiation (PAR) during previous campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Gpmax_int_rev_up   GPmax parameter of GPP fit with photosynthetic active radiation (PAR) during next campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
Gpmax_int_rev_down   GPmax parameter of GPP fit with photosynthetic active radiation (PAR) during previous campaign script Calculated http://www.doi.org/10.4228/ZALF.2011.339
View Sample Data
Table weatherdata_halfhourly
Table CO2_fluxes_all
Table normal_model_all
Download Link
Download dataset
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