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: | GLBRC085-001.120 |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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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. | C |
| chamber | the chamber measured. Most of the time only one chamber was measured but sometimes 2 chambers were measured. |
| Protocols |
|---|
| Greenhouse Gas Fluxes - Static Chamber Method |
| Greenhouse Gas Fluxes - Recirculating Chamber Method |
GLBRC data is not yet publicly available.
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| sample_date | site | experiment | treatment | replicate | subplot | method | n2o_n | ch4_c | co2_c | temperature | chamber |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-10-20 | KBS GLBRC Intensive Site | GLBRC Biofuel Cropping System Experiment | G1 | R1 | gc | 1.01 | -1.2 | 9324.12 | 11.2 | 1 | |
| 2023-10-20 | KBS GLBRC Intensive Site | GLBRC Biofuel Cropping System Experiment | G1 | R2 | gc | 0.74 | 0.04 | 6444.57 | 11.2 | 1 | |
| 2023-10-20 | KBS GLBRC Intensive Site | GLBRC Biofuel Cropping System Experiment | G1 | R3 | gc | 1.74 | -1.63 | 5933.8 | 11.2 | 1 | |
| 2023-10-20 | KBS GLBRC Intensive Site | GLBRC Biofuel Cropping System Experiment | G1 | R4 | gc | 0.13 | 0.12 | 5646.37 | 11.2 | 1 | |
| 2023-10-20 | KBS GLBRC Intensive Site | GLBRC Biofuel Cropping System Experiment | G2 | R1 | gc | 2.37 | -2.19 | 4429.21 | 11.2 | 1 |