Date (Publication)

2024-08-19

Date (Creation)

2024-08-15

Identifier

https://catalogue.ceh.ac.uk/id/4fc8a62b-c971-433e-acc3-23423bb75022

Identifier

doi: / 10.5285/4fc8a62b-c971-433e-acc3-23423bb75022

Other citation details

Lebron, I., Reinsch, S., Bentley, L., Cosby, B.J., Emmett, B.A., Keenan, P., Pereira, G., Robinson, D.A. (2024). Carbon and nitrogen contents of soil organic matter fractions, soil organic carbon, total soil nitrogen, and soil organic matter of 100 topsoil samples from the UKCEH Countryside Survey, Great Britain, 2019-2020. NERC EDS Environmental Information Data Centre 10.5285/4fc8a62b-c971-433e-acc3-23423bb75022

GEMET - INSPIRE themes, version 1.0

• Soil

Access constraints

otherRestrictions Other restrictions

Other constraints

Superseded

Use constraints

otherRestrictions Other restrictions

Other constraints

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

Use constraints

otherRestrictions Other restrictions

Other constraints

If you reuse this data, you should cite: Lebron, I., Reinsch, S., Bentley, L., Cosby, B.J., Emmett, B.A., Keenan, P., Pereira, G., Robinson, D.A. (2024). Carbon and nitrogen contents of soil organic matter fractions, soil organic carbon, total soil nitrogen, and soil organic matter of 100 topsoil samples from the UKCEH Countryside Survey, Great Britain, 2019-2020. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/4fc8a62b-c971-433e-acc3-23423bb75022

Spatial representation type

textTable Text, table

Distance

1000  urn:ogc:def:uom:EPSG::9001

Metadata language

EnglishEnglish

Character set

utf8 UTF8

Topic category

• Environment

Begin date

2019-01-01

End date

2020-12-31

Unique resource identifier

OSGB 1936 / British National Grid

Distribution format

• Comma-separated values (CSV) ()

OnLine resource

Supporting information

Supporting information available to assist in re-use of this dataset

Hierarchy level

dataset Dataset

Other

dataset

Statement

Archived Countryside survey topsoil samples (0-15 cm) were used. These were sieved (2 mm) and airdried prior to archiving. Thermo-Gravimetric Analysis was performed in four steps using a LECO TGA701. 10 g of samples were heated from 25oC to 105oC (kept constant for 3 h) to determine the hygroscopic moisture. The mass loss between 105oC and 375oC (kept constant for 15.75 h) was used to calculate the soil organic matter content (SOM), the mass loss between 650oC and 100oC gives information on calcium carbonate content of the soils. Soil organic matter fractions were separated via density fractionation using sodium polytungstene at 1.8 g cm-3). In the first step, the free light fraction (LF-fraction) was separated using 2.5 g archived soil. The pellet was re-suspended, and the occluded fraction was separated and discarded. The residual material was associated with the mineral associated organic matter fraction (MAOM fraction) after re-suspension and cleaning. Two internal standards were used in each batch as well as 10% of replicated samples to account for accuracy and precision. Carbon and nitrogen contents were measured on a subsample of archived soil, and the LF and MAOM fractions using an Elementar Vario-Elemental analyser (Elementaranalysensysteme GmbH, Hanau, Germany). The UKAS accredited method SOP3102 was used. Carbon and nitrogen mass fractions were calculated for the LF and MAOM fractions, and the soil. Mass fractions of the occluded fraction (OF) and the particulate organic matter fraction (POM) were calculated using the mass balance equation. Total soil carbon and MAOM-C are corrected for calcite-C content; LF, OF and POM fractions are not corrected for calcite content because no minerals are expected to be present in organic matter. LF, MAOM, total soil, and SOC (total soil carbon minus calciate-carbon) were corrected for hygroscopic water content. The OF and POM fractions are automatically corrected for hygroscopic water as they are calculated from corrected masses.

File identifier

4fc8a62b-c971-433e-acc3-23423bb75022 XML

Metadata language

EnglishEnglish

Character set

ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1

Hierarchy level

dataset Dataset

Hierarchy level name

dataset

Date stamp

2025-10-17T11:09:44

Metadata standard name

UK GEMINI

Metadata standard version

2.3