3 Year Greenhouse Gas data (collected in field)
- Description:
- Read me: Publication: Soil greenhouse gas emissions and grazing management in northern temperate grasslands Contact Details: Please contact Ma Zilong at mazlong@mail.sysu.edu.cn and Bharat Shrestha at shresthabm@gmail.com if you have any further questions Methods: Growing season GHG fluxes were measured in the field bi-weekly from mid-August to mid-October in 2017, early May to mid-October in 2018, and early May to early September in 2019 using dark static chambers (65.5 × 17 × 15.5 cm height) at six random sampling points within a representative area of each study ranch. Ambient air samples(20 mL) were collected prior to placing the chamber-lids over the static chambers (ambient condition, t = 0) and again at 10, 20, and 30 min after placing the chamber-lid over the static chamber, using an airtight syringe (Norm-Ject, Henke Sass Wolf, Tuttlingen, Germany) through a rubber septum. Samples were then stored in pre-evacuated 12 mL soda glass Isomass Exetainers (Labco Limited, Lampeter, Wales, UK) to provide a positive pressure in the Exetainer. Collected gas samples were transported in dark boxes to the Forest Soil Laboratory at the University of Alberta, Edmonton, and were analyzed using a Varian CP-3800 gas chromatograph (Varian Canada, Mississauga, Canada) equipped with a thermal conductivity detector, a flame ionization detector and an electron capture detector for determining the CO2, CH4, and N2O concentrations, respectively.
- Boyce, Mark
- Contributor(s):
- Boyce, Mark, Ma, Zilong, and Shrestha, Bharat
- Source Repository:
- University of Alberta Dataverse
- Series:
- AGGP Grazing Management Study Dataverse
- Publisher(s):
- Borealis
- Access:
- Public
- License:
- CC0 1.0
- URL:
- https://doi.org/10.5683/SP3/LI3TYY
- Publication date:
- 2023-06-07
- Subjects:
- Keywords:
- Identifier:
- https://doi.org/10.5683/SP3/LI3TYY
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