Cite this dataset as
Marsden, K.A., Holmberg, J.A., Jones, D.L., Chadwick, D.R. (2020). Sheep urine patch greenhouse gas emissions from a semi-improved upland grassland in North Wales, UK. NERC Environmental Information Data Centre. (Dataset). https://doi.org/10.5285/0434c74c-4a8e-45b8-a187-13e422c0ed0f
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This dataset is available under the terms of the Open Government Licence
Sheep urine patch greenhouse gas emissions from a semi-improved upland grassland in North Wales, UK
Format
Comma-separated values (CSV)
Spatial information
- Study area
-
- Spatial representation type
- Tabular (text)
- Spatial reference system
- OSGB 1936 / British National Grid
Temporal information
- Temporal extent
-
2016-03-01 to 2017-10-01
Provenance & quality
Soil greenhouse gas (N2O, CO2 and CH4) fluxes were monitored from the experimental sheep urine patches for a full year (2016-2017). During the first nine weeks following treatment application, fluxes were monitored using a mobile automated greenhouse gas monitoring system (Queensland University of Technology, Institute for Future Environments, Brisbane, Australia) which samples from static chambers, analysing the samples for N2O and CH4 on a gas chromatograph (SRI 8610C, Torrance, USA) and CO2 fluxes on a LI-COR LI-820 (Licor, St Joseph, MI, USA). The system measures eight greenhouse gas flux measurements per chamber per day and is calibrated with certified reference gases to ensure accuracy. Subsequently, monthly manual greenhouse gas samples were taken from static chambers in the same plots to complete the year-round measurement of fluxes. Samples were analysed on a Perkin Elmer 580 gas chromatograph (Perkin Elmer Inc., Beverly, CT, USA), also calibrated with certified reference gases to ensure accuracy. The nature and units of the reported fluxes can be found in the supporting documentation associated with the fluxes. The N2O-N emission factors (% of N applied) were calculated from the N2O fluxes by calculating the cumulative emissions (area under the curve by trapezoidal integration) and expressing the proportion of applied urine-N emitted as N2O-N.
In addition to the greenhouse gas fluxes, the temporal dynamics of soil mineral N (NO3- and NH4+), total dissolved N, total dissolved organic C and gravimetric soil moisture are monitored throughout the study via soil sampling and analysis. Above ground biomass harvests were taken periodically and the foliar N content and C-to-N ratio determined. Supporting meteorological data are provided in addition to characterisation of the soil properties at each study site. Full details of methods and quality control procedures are provided in the supporting documentation associated with each deposited data file.
Related
This dataset is included in the following collections
Nitrous oxide emissions from livestock urine in upland grasslands in North Wales, UK
Citations
Correspondence/contact details
Authors
Other contacts
- Rights holder
-
Bangor University
- Custodian
-
NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
- Publisher
-
NERC Environmental Information Data Centreinfo@eidc.ac.uk
Additional metadata
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This dataset is available under the terms of the Open Government Licence
CITE AS: Marsden, K.A.; Holmberg, J.A.; Jones, D.L.; Chadwick, D.R. (2020). Sheep urine patch greenhouse gas emissions from a semi-improved upland grassland in North Wales, UK. NERC Environmental Information Data Centre. https://doi.org/10.5285/0434c74c-4a8e-45b8-a187-13e422c0ed0f
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