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Grayson, R.P.; Holden, J.; Hunt, S.F.P.

Saturated hydraulic conductivity in peat near open and blocked gullies in the Peak District, December 2021 and January 2022

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This dataset is available under the terms of the Open Government Licence

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https://doi.org/10.5285/0567ac9f-3e35-4f41-9efa-8e97948401f8
This dataset provides saturated hydraulic conductivity values which were obtained from samples of peat. The peat was collected adjacent to erosion gullies that were either open, or adjacent to dams on gullies which had been installed as part of peatland restoration. The sites studied were Kinder Scout and Withens Clough in the Peak District, northern England. Values of saturated hydraulic conductivity were obtained from replicate samples. At each sampling location values were obtained for 5 cm long peat samples across three depth ranges (0-10 cm, 35-45 cm, 75-85 cm), and three distances from gully edges (0 cm, 100 cm, 500 cm). Comparisons were made between peat next to blocked gully dams and peat not adjacent to a gully dam and between the two peatland sites. The work was supported by the Natural Environment Research Council (Grant NE/R004595/1).
Publication date: 2023-03-07
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More information

View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)

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
2021-12-01    to    2022-01-31

Provenance & quality

At each site the sample was extracted from the surface (0-10 cm) by pushing in a 10 cm x 10 cm x 10 cm box corer and cutting underneath it to remove the peat. At the gully edge the same method was used to extract the 35-45 cm depth and 75-85 cm depth sample from the gully face. At the sample points that were 1 m and 5 m from the gully edge, a 1 m long, 110 mm diameter tube corer was used to extract the subsurface samples.

The samples were returned to the laboratory and saturated hydraulic conductivity was measured using a split cylinder method. A cylindrical sample is cut from a frozen cube of peat, allowed to thaw, and gently enclosed in an acrylic split-cylinder, coated on the inside with a soft silicone grease or petroleum jelly, thus preventing preferential flow.

The samples were saturated with water taken from the sample site and a hydraulic gradient across the sample was formed using tubing regulators. Discharge rates were measured and Darcy’s Law used to determine saturated hydraulic conductivity values. For each sample, three measurements were taken and a mean of the three flow rates was calculated and that mean is what is reported in the dataset.

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:
Grayson, R.P.; Holden, J.; Hunt, S.F.P. (2023). Saturated hydraulic conductivity in peat near open and blocked gullies in the Peak District, December 2021 and January 2022. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/0567ac9f-3e35-4f41-9efa-8e97948401f8

Correspondence/contact details

Holden, J.
University of Leeds
 j.holden@leeds.ac.uk

Authors

Grayson, R.P.
University of Leeds
Holden, J.
University of Leeds
Hunt, S.F.P.
University of Leeds

Other contacts

Rights holder
University of Leeds
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk

Additional metadata

Topic categories
inlandWaters
INSPIRE theme
Environmental Monitoring Facilities
Keywords
blanket bog , gully , Peak District , peat , permeability , saturated hydraulic conductivity , wetland
Funding
Natural Environment Research Council Award: NE/R004595/1
Last updated
08 February 2024 17:31