GLBRC Sustainability Data Catalog

Greenhouse Gas Fluxes — GLBRC Biofuel Cropping System Experiment

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Fluxes of N2O, CO2 and CH4 from soils of all BCSE treatments (G1-G10) measured either by extracting gas samples from static gas flux chambers and analysis by gas chromatography/infrared gas analyzer (gc) or since 2018 by recirculating flow from the flux chamber through an integrated cavity output spectroscopy (icos) unit. Fluxes are corrected to the 3- meter air temperature at 10 am on the day chamber gases were sampled.

This datatable is part of the Greenhouse Gas Fluxes—GLBRC Biofuel Cropping System Experiment dataset.

This dataset contains greenhouse gas (GHG) fluxes of nitrous oxide (N2O), carbon dioxide (CO2) and methane (CH4) from soils of the GLBRC Biofuel Cropping System Experiment (BCSE) and includes flux data for all treatments (G1-G10) at both KBS and Arlington sites. GHG fluxes are measured at approximate two-week intervals during the growing season using static chambers. Soil temperature and moisture at the time of gas sampling are also determined.

Note

Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: June 2008 to July 2022
Dataset: GLBRC085
Datatable ID: GLBRC085-001.111
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Last Updated 2023-10-24
Variate Description Units
sample date date of sampling
site experiment location
experiment GLBRC study
treatment experimental treatment
replicate replicate nested within treatment
subplot microplots. Also, "no_cover" represents small plots with cover crop removed for a 2-year study to investigate the effects of the presence or absence of cover crops on nitrous oxide (N2O) emissions carried out by Neville Millar.
method The analysis methods used (gc or icos)
n2o n gas flux of nitrous oxide as N g/ha/day
ch4 c gas flux of methane as carbon g/ha/day
co2 c gas flux of carbon dioxide as carbon g/ha/day
temperature Air temperature used to correct the gas flux. KBS air temperature is measured at 10 am at 3 meters above the ground.
chamber the chamber measured. Most of the time only one chamber was measured but sometimes 2 chambers were measured.

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Data Excerpt

sample_date site experiment treatment replicate subplot method n2o_n ch4_c co2_c temperature chamber
2022-11-29 KBS GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G1 R1 gc 3.76 -0.82 8122.86 2.1 1
2022-11-29 KBS GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G1 R2 gc 1.29 1.35 4879.24 2.1 1
2022-11-29 KBS GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G1 R3 gc 0.56 0.4 4578.06 2.1 1
2022-11-29 KBS GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G1 R4 gc 0.9 -2.72 6315.7 2.1 1
2022-11-29 KBS GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G2 R1 gc 2.28 -0.63 3624.24 2.1 1
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