Greenhouse gases dissolved in groundwater used for irrigation at the KBS LTER — Research Context
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
These are measurements of greenhouse gas concentrations (in umol/L) from headspace sampled after groundwater equilibrated with atmospheric air. The ambient air concentrations have already been subtracted. Gives both sampled concentration (gas.umoll.sample) as well as calculated concentration (gas.umoll.equil) of gas expected in water at equilibrium with atmosphere at sample temperature—this is subtracted from the sample concentration as well. For more sampling details see manuscript. These are data collected from irrigation wells around southwest Michigan not just at KBS. But only the KBS observations are used in the total GWI analysis. These were collected in the summer of 2016 and 2017.
This datatable is part of the Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. dataset.
Data for Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. https://doi.org/10.1111/gcb.14472
Note
| Experiment: | Research Context |
| Data available from: | July 2016 to September 2017 |
| Dataset: | KBS125 |
| Datatable ID: | KBS127-001.181 |
| Repository link: | http://doi.org/10.6073/pasta/6ab26c6ead42552a1d4f0261e8dac9bc |
| Related Tables: | |
| Related Files: | |
| Personnel: |
|
| Last Updated | 2023-10-24 |
| Variate | Description | Units |
|---|---|---|
| site id | id string unique to a site. | |
| site | site name | |
| region | the region that the site is in | |
| rep | replicate sample | |
| sample date | sample date | |
| temperature k | water temperature in degrees K | |
| co2 umoll samp | Concentration of CO2 in water after equilibrium in syringe (umol/l) | |
| ch4 umoll samp | Concentration of CH4 in water after equilibrium in syringe (umol/l) | |
| n2o umoll samp | Concentration of N2O in water after equilibrium in syringe (umol/l) | |
| co2 umoll equil | Concentration of CO2 expected in water in equilibrium with atmosphere (umol/l) | |
| ch4 umoll equil | Concentration of CH4 expected in water in equilibrium with atmosphere (umol/l) | |
| n2o umoll equil | Concentration of N2O expected in water in equilibrium with atmosphere (umol/l) | |
| year | sample year |
| Protocols |
|---|
Data Excerpt
| site_id | site | region | rep | sample_date | temperature_k | co2_umoll_samp | ch4_umoll_samp | n2o_umoll_samp | co2_umoll_equil | ch4_umoll_equil | n2o_umoll_equil | year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.1 | FSC | KBS | 1 | 2016-07-01 | 294.15 | 559.59 | 0.023712 | 1.055391 | 13.62873 | 0.00243 | 0.00754 | 2016.0 |
| 12.1 | FSC | KBS | 1 | 2016-07-01 | 294.15 | 507.07 | 0.024243 | 0.939668 | 13.62873 | 0.00243 | 0.00754 | 2016.0 |
| 12.1 | FSC | KBS | 1 | 2016-07-01 | 294.15 | 519.01 | 0.027989 | 0.99949 | 14.90415 | 0.00259 | 0.00833 | 2016.0 |
| 12.1 | FSC | KBS | 1 | 2016-07-01 | 294.15 | 552.43 | 0.028873 | 1.020278 | 14.90415 | 0.00259 | 0.00833 | 2016.0 |
| 1 | SW1 | SW | 1 | 2016-07-06 | 297.15 | 182.58 | 0.447614 | 0.179469 | 14.90415 | 0.00259 | 0.00833 | 2016.0 |