On this page:

Scotland's Soil Resource - Current State and Threats

« Previous | Contents | Next »

Listen

Appendix A. Soil Sample Data

The distribution of soil properties and soil types is recorded in the National Soil Database of Scotland, which contains a number of subsets of soil samples, including the National Soil Inventory of Scotland ( NSIScot), a seminal information resource of national soils data.

Soil sample material for the profiles in the database is stored in the National Soil Archive of Scotland, housed at the Macaulay Land Use Research Institute. These distributional datasets of soils in Scotland form a basis for informed description of the regional functionality of Scotland's soil resources and are referred to in more detail under the descriptions of each threat.

A1. National Soil Inventory of Scotland.

Includes heavy metal data analysed for topsoil samples.

A1.0 Relevance to threats and functions

Threat

Direct measurement

Surrogate data

Organic matter status

Soil organic carbon measured in samples from soil horizons in profiles

Biodiversity change

Vegetation may give some insight

Structure or compaction

Soil structure was assessed at time of sampling

Erosion

Record of erosion features during soil sampling

Inherent risk of soil erosion

Contamination

Heavy metal content of soils

Soil sealing

Record of built up area at time of sampling

Soil as a cultural resource

Flooding

Salinisation

Sodium content is measured

Function

Direct measurement

Surrogate data

Biomass production

Nitrogen; pH; C/N ratio; …

LCA; LCF; …

Environmental interactions

C content; Soil structure; Soil texture; pH; Clay content; Colour;

Biodiversity

Roots and vegetation communities; …

Raw materials

Parent material type and lithology; …

Platform

Groundwater table; Consolidated / Unconsolidated sands; Shrinking clays; Flooding risk; Parent material; …

Cultural heritage

Artificial over deepening of top soil; …

A1.1. Basic description

Title

National Soil Inventory of Scotland

Dataset acronym

NSIScot

Original purpose

Provide an unbiased sample to characterise or quantify soil distribution and variability at a broad, regional scale in Scotland.

Dataset description

The NSIScot is a subset of the National Soils Database of Scotland. The sample frame work is a 5km grid based on the National Grid of GB. The data comprise a soil profile description at each 5km intersect of the National Grid. Soil horizon samples were collected on the 10 km intersects and some 5km intersects. The bulk of the profiles were collected during field work for the 1:250 000 soil survey of Scotland. The remainder were collected in three subsequent years from areas which had previously been surveyed.

Data format

A view of the National Soils Database of Scotland.

Data Path

The data are stored in Oracle® tables on a unix server at the Macaulay Institute:

  • BASICINV table contains site characterisation data

Descriptions of each soil horizon (soil horizon morphology) and analytical data are contained in three tables:

  • ORGANICINV table holds data on organic horizons
  • MINERALINV table holds data on mineral horizons
  • ANALINV table holds systematic laboratory data derived from samples taken from individual horizons. Every 10km point was sampled and some of the 5km intersects

The tables are linked by grid reference and lab numbers.

Creator / author

Soil surveyors employed by the Macaulay Institute.

Author credentials

Soil surveyors with extensive field experience of soil classification and mapping described the soil profile morphology and collected the soil horizon samples.

Contributor

As for creator or author

Gaps / inconsistencies

There are some gaps in the sample cover. Samples were not collected from a number of grid intersects on Orkney. St Kilda was not visited due to cost. Soil samples were collected from some of the 5km points, although this was not in the protocol.

Spatial coverage

Grid sample covering Scotland.

Time frame

Nine years: 1978 to 1987. Data were collected during Spring, Summer and Autumn.

Spatial / temporal accuracy or precision

The intersection between Ordnance Survey northing and easting grid lines at 5 km intervals was plotted onto an aerial photograph. This photograph was used to guide a soil surveyor to the sample location in the field where a soil profile was excavated, described and, at each 10km intersection, soil samples were taken. The approximate location accuracy in m was noted by the surveyor. Horizon and sample depths were recorded to the nearest cm.

Data currency

The data were collected between 19 and 27 years ago. Currency depends on the temporal variation in individual attributes and we may need to break down the information into inherent / changeable. For example, sand content is inherent but organic carbon content is changeable.

Archival material

Field record cards were used at some sites before the introduction of hand-held field computers. The field cards are stored at the Macaulay. Soil sample material is archived at the Macaulay in the National Soils Archive of Scotland.

A1.2. Recording methods and standards

Peer review

Methods published in Brown et. al. 1987

Standards

The methodology for soil profile description and sampling was coordinated by the soil surveyors at regular field meetings, held jointly with the soil survey of England and Wales. Additionally, methods were discussed from time to time with soil survey organisations in the United States, Canada and Europe from the inception of the Soil Survey of Scotland.

Recording methods

The field description and recording methods agreed at field meetings were published (Hodgson, 2004) and were adopted by the Soil Survey of Scotland with the exception of texture classification. The grid sample plan for the sampling was agreed with the Soil Survey of England and Wales and DAFS (now SEERAD).

A1.3 Recorded attributes

Site data

Location

Unique ID; National grid reference; Date of sample; Name of site; Number of site; Surveyor; Ordnance Survey Third Edition Map Sheet Number; Easting (relative to false origin of National Grid); Northing (relative to false origin of National Grid); Elevation of site (m above sea level); Site elevation in Feet; Slope of site in degrees; Slope form; Slope type; Aspect of site; Bearing in degrees; Accuracy of site location

Soil classification, mapping and sampling

Soil Association symbol; Soil Series symbol; Association/Series code; Major soil group; Major soil sub group; Soil drainage; Surface/groundwater gley subgroup; Parent material; Miscellaneous Mapping unit classification; Series Phase; Primary and secondary rock type codes; Pit base descriptor; Sample depths in cm below ground surface; Extra samples (Y if additional samples); Lab number range; Sample Batch Identification

Additional field-recorded information

Site drainage; Erosion; Vegetation classification; Presence or absence of flushing; Rock frequency; Boulder frequency

Additional information

Climate classification (after Birse); Land Capability for Agriculture; Land Capability for Forestry; Administration District code; Record type (A: Archival; I: Inventory; G: Grid; P: Partial; R: Relocated; S: Selected; T: Transect); Systems use flag; Notes; Linked soil data tables (B: BASICINV; O: ORGANICINV; M: MINERALINV; A: ANALINV; N: NIPAQUA)

Organic horizons

Unique record ID; National grid reference of site; Horizon symbol; Depth to top of horizon (cm below ground surface); Depth to base of horizon (cm below ground surface); Horizon boundary distinctness and form; Munsell colour (field measured); Nature of organic matter; Mineral content; Moisture status; Primary structure: degree, size and type; Primary stones frequency, size and shape; Secondary stones frequency, size and shape; Primary roots frequency, size and kind; Secondary roots frequency, size and kind

Mineral horizons

Unique record ID; National grid reference of site; Unique sequence number of record; Horizon symbol; Depth to top of horizon (cm below ground surface); Depth to base of horizon (cm below ground surface); Horizon boundary distinctness and form; Munsell colours of soil matrix, soil peds, dry soil and mottles; Mottle frequency, size, contrast and sharpness; Estimated percentage mottles; Grain size estimate; Field estimate of texture; Estimated percentage silt; Estimated percentage clay; Moisture status; Consistency: wet, moist or dry; Degree of induration; Degree of cementation; Primary structure: degree, size and type; Secondary structure: degree, size and type; Primary stones: frequency, size, shape and lithology; Estimated percentage primary stones; Secondary stones: frequency, size, shape and lithology; Estimated percentage secondary stones; Primary roots frequency, size and kind; Estimated percentage primary roots; Secondary roots frequency, size and kind; Estimated percentage secondary roots

Analytical data

Not all determinands measured for each sample.

Unique lab number of sample; Horizon symbol (allocated by Analytical); Depth to top of sample (cm below ground surface); Depth to base of sample (cm below ground surface); Loss on ignition; Flag specifying USDA or BSTC analyses; Percentage International sand; Percentage International silt; Percentage International clay; Percentages of USDA or BSTC sand and silt; Calcium; Magnesium; Sodium; Potassium; Hydrogen; Sum of cations; Base saturation; pH in water; pH in Calcium chloride; Carbon; Nitrogen; C/N ratio; Organic matter; Total phosphate; Exchangeable Carbon; Pyrophosphate extractable aluminium; Extractable iron; Residual iron; Sample Batch Identification; National grid reference of site; Acetic soluble phosphorous; Data verification by Analytical Group

Heavy metals by EDTA extract

Copper; Zinc; Manganese; Nickel; Cadmium; Chromium; Lead

Elements by aqua regia extract

Calcium; Sodium; Potassium; Magnesium; Copper; Zinc; Iron; Manganese; Aluminium; Phosphorous; Nickel; Cadmium; Chromium; Cobalt; Lead; Strontium; Molybdenum; Titanium; Barium

A1.4 Quality factors

Quality Factor

Description

Original data

Original data collected from soil pits in the field.

Primary / secondary data

Directly collected primary data. Horizon nomenclature and soil classification are secondary data, interpreted from the observations.

Objectivity of Substance
e.g. sampling strategy

The sample strategy comprised a square grid pattern aligned to the National Grid of Great Britain with:

Five km spacing for site and soil descriptions

Ten km spacing for soil samples (sub-set of the five km grid)

Field location was by using aerial photographs on which the grid intersect was transcribed from maps.

Objectivity of Presentation

The data are not released in raw form since interpretation is required. Presentations are normally peer-reviewed, either for journal publication or by other agencies.

Analytical QA/ QC

Samples were analysed prior to the drawing up of the ISO framework of standard methods. The methods for systematic analysis were documented internally at the Macaulay Institute. Archival soil sample material exists for many samples, unless it has become exhausted, and could be analysed under the current ISO9001 framework.

Utility

The data provide good estimates of means and regional variations in a range of soil properties and attributes. They inform the soil classification for Scotland and are used with soil map information to estimate the regional variation in soil properties. They are used with pedotransfer functions to derive other datasets. These data have been used to evaluate the current state of various threats to soil in this project.

Integrity and security

The database is securely maintained and access to the data is controlled within the Macaulay by the Database Manager. Revision is rarely necessary except to correct errors.

Transparency (Leads to reproducibility)

Field recording methods were published.

Reproducibility

The original data were collected by a peer-group of soil survey experts with in-depth knowledge of soils in the field. This expert group has largely disbanded and it is not likely that a reproducible set of results can be obtained without a field-sample training group being established. The original site has been destroyed by the sampling so any return visit will not find the same soil. Successful return visits to the sample points depend on the experience of the field worker in locating sites from features on aerial photographs. The original site location was by aerial photo interpretation of ground features, and may not occur exactly on the National Grid intersect. GPS may not be useful in re-locating the exact point. Experience suggests that the original site record will be of value in the relocation process. Spatial variability in depth and geographically impinges on reproducibility.

Synthesised Product

These are raw data.

Interpreted Product

The horizons are named and the soil is classified on site. This is an interpretation by the soil surveyor from the raw data.

Influential Information

This information was not collected to influence policy.

A2. Representative Soil Profiles of Scotland

Prior to the establishment of standardised recording methods and protocols for the National Soils Inventory of Scotland in 1987, soil profiles were recorded freehand. Consequently, these soil profile descriptions may not contain as much systematic information as the NSIS profiles.

A2.1. Basic description

Title

Representative Soil Profiles of Scotland

Dataset acronym

RSPS

Original purpose

To provide examples of the soils mapped on the 1:63 360 and 1:50 000 scale soil maps.

Dataset description

The RSPS is a subset of the National Soils Database of Scotland. These profiles were selected at the time of mapping by soil surveyors to characterise the soils currently being mapped. The data comprise morphological descriptions of soil profiles and constituent horizons and systematic analytical data from soil horizon samples. The information was collected during field work for the 1:63 360 and 1:50 000 scale soil survey of Scotland

Data format

These data exist in two formats, depending on date of sampling:

  • Pre-1979 the information is stored on original soil profile cards
  • Post-1979 the records are stored in the National Soils Database of Scotland

For pre-1979 data, analytical data and minimal site data are entered into the National Soils Database of Scotland.

Data Path

For pre -1979 data, two sets of soil profile cards are stored in separate locations in the Macaulay Institute.

The National Soils Database of Scotland data are stored in Oracle® tables on a unix server at the Macaulay Institute:

  • BASICINV table contains site characterisation data

Descriptions of each soil horizon (soil horizon morphology) and analytical data are contained in three tables:

  • ORGANICINV table holds data on organic horizons
  • MINERALINV table holds data on mineral horizons
  • ANALINV table holds systematic laboratory data derived from samples taken from individual horizons. Every 10km point was sampled and some of the 5km intersects
  • TRACELEM table holds trace element analysis for a subset of profiles.

The tables are linked by grid reference and lab numbers.

Creator or author

Soil surveyors employed by the Macaulay Institute.

Author credentials

Soil surveyors with extensive field experience of soil classification and mapping

Contributor

As for creator or author

Spatial coverage

The main agricultural areas of Scotland, with some upland areas also covered.

Time frame

1941 to date, with few records collected post-1979.

Spatial / temporal accuracy or precision

Sites were located using 1:25 000 scale Ordnance Survey maps or 1:25 000 or 1:10 000 scale aerial photographs. Photograph locations were used from around 1966. GPS equipment has been in use recently. Grid references were recorded to the nearest 100m.

Data currency

The samples were obtained up to 65 years ago. Currency depends on temporal variation in individual attributes.

Archival material

Soil profile descriptions were hand-written in the field and soil profile cards were typed from the field descriptions. The soil profile cards are stored at the Macaulay. Soil sample material is archived at the Macaulay in the National Soils Archive of Scotland.

A2.2. Recording methods and standards

Peer review

Soil survey methodology evolved during the progress of the soil mapping across Scotland.

Standards

The methodology for soil profile description and sampling was coordinated by the soil surveyors at regular field meetings, held jointly with the soil survey of England and Wales. Additionally, methods were discussed from time to time with soil survey organisations in the United States, Canada and Europe from the inception of the Soil Survey of Scotland.

Recording methods

The field description and recording methods agreed at field meetings were published (Hodgson, 2004) and were adopted by the Soil Survey of Scotland with the exception of texture classification. Prior to the Hodgson publication, soil classification and recording methodology was published in soil memoirs, although not every map has an accompanying soil memoir.

A2.3 Recorded attributes

Site data

Location

Unique ID; National grid reference; Date of sample; Name of site; Number of site; Surveyor; Ordnance Survey Third Edition Map Sheet Number; Easting (relative to false origin of National Grid); Northing (relative to false origin of National Grid); Elevation of site (m above sea level); Site elevation in Feet; Slope of site in degrees; Slope form; Slope type; Aspect of site; Bearing in degrees; Accuracy of site location

Soil classification, mapping and sampling

Soil Association symbol; Soil Series symbol; Association/Series code; Major soil group; Major soil sub group; Soil drainage; Surface/groundwater gley subgroup; Parent material; Miscellaneous Mapping unit classification; Series Phase; Primary and secondary rock type codes; Pit base descriptor; Sample depths in cm below ground surface; Extra samples (Y if additional samples); Lab number range; Sample Batch Identification

Additional field-recorded information

Site drainage; Erosion; Vegetation classification; Presence or absence of flushing; Rock frequency; Boulder frequency

Additional information

Climate classification (after Birse); Land Capability for Agriculture; Land Capability for Forestry; Administration District code; Record type (A: Archival; I: Inventory; G: Grid; P: Partial; R: Relocated; S: Selected; T: Transect); Systems use flag; Notes; Linked soil data tables (B: BASICINV; O: ORGANICINV; M: MINERALINV; A: ANALINV; T; TRACELEM); Reference to Soil Survey Memoir, and profile number in the memoir

Organic horizons

Unique record ID; National grid reference of site; Horizon symbol; Depth to top of horizon (cm below ground surface); Depth to base of horizon (cm below ground surface); Horizon boundary distinctness and form; Munsell colour (field measured); Nature of organic matter; Mineral content; Moisture status; Primary structure: degree, size and type; Primary stones frequency, size and shape; Secondary stones frequency, size and shape; Primary roots frequency, size and kind; Secondary roots frequency, size and kind

Mineral horizons

Unique record ID; National grid reference of site; Unique sequence number of record; Horizon symbol; Depth to top of horizon (cm below ground surface); Depth to base of horizon (cm below ground surface); Horizon boundary distinctness and form; Munsell colours of soil matrix, soil peds, dry soil and mottles; Mottle frequency, size, contrast and sharpness; Estimated percentage mottles; Grain size estimate; Field estimate of texture; Estimated percentage silt; Estimated percentage clay; Moisture status; Consistency: wet, moist or dry; Degree of induration; Degree of cementation; Primary structure: degree, size and type; Secondary structure: degree, size and type; Primary stones: frequency, size, shape and lithology; Estimated percentage primary stones; Secondary stones: frequency, size, shape and lithology; Estimated percentage secondary stones; Primary roots frequency, size and kind; Estimated percentage primary roots; Secondary roots frequency, size and kind; Estimated percentage secondary roots

Analytical data

Not all determinands measured for each sample.

Unique lab number of sample; Horizon symbol (allocated by Analytical); Depth to top of sample (cm below ground surface); Depth to base of sample (cm below ground surface); Loss on ignition; Flag specifying USDA or BSTC analyses; Percentage International sand; Percentage International silt; Percentage International clay; Percentages of USDA or BSTC sand and silt; Calcium; Magnesium; Sodium; Potassium; Hydrogen; Sum of cations; Base saturation; pH in water; pH in Calcium chloride; Carbon; Nitrogen; C/N ratio; Organic matter; Total phosphate; Exchangeable Carbon; Pyrophosphate extractable aluminium; Extractable iron; Residual iron; Sample Batch Identification; National grid reference of site; Acetic soluble phosphorous; Data verification by Analytical Group

Trace element data for selected soil samples

Total Barium; Total Cobalt; Total Total Copper; Total Gallium; Total Manganese; Total Molybdenum; Total Nickel; Total Phosphorous; Total Lead; Total Strontium; Total Titanium; Total Vanadium; Sum of exchangeable cations + H; Exchangeable Calcium; Exchangeable Magnesium; Exchangeable Sodium; Exchangeable Potassium; Exchangeable Hydrogen; Organic carbon; Extractable Cobalt; Extractable Chromium; Extractable Copper; Extractable Manganese; Extractable Nickel; Extractable Lead; Extractable Titanium; Extractable Vanadium; Extractable Zinc; Extractable Iron; Extractable Molybdenum

A2.4 Quality factors

Factor

Description

Original data

Original data collected from soil pits in the field.

Primary / secondary data

Directly collected primary data. Horizon nomenclature and soil classification are secondary data, interpreted from the observations.

Objectivity of Substance

e.g. sampling strategy

Samples were collected on a subjective basis. The soil profiles selected for sampling were judged to exemplify the soils mapped. Field locations were recorded from 1:25 000 scale field maps. Aerial photographs were used from around 1966 onwards in some areas.

Objectivity of Presentation

The data are not released in raw form since expert interpretation is required in order to make the best use of the data set. Presentations are normally peer-reviewed, either for journal publication or by other agencies.

Analytical QA/ QC

Samples were analysed prior to the drawing up of the ISO framework of standard methods. The methods for systematic analysis were documented internally at the Macaulay Institute. Archival soil sample material exists for many samples, unless it has become exhausted, and could be analysed under the current ISO9001 framework.

Utility

The data inform the soil classification for Scotland and provide ancillary data to characterise soil properties within soil mapping units.

Integrity

The database is securely maintained and access to the data is controlled within the Macaulay by the Database Manager. Revision is rarely necessary except to correct errors. The soil profile cards exist in two sets stored at separate locations within the Macaulay Institute.

Transparency
(Leads to reproducibility)

Field recording methods were published.

Reproducibility

The original data were collected by a peer-group of soil survey experts with in-depth knowledge of soils in the field. This expert group has largely disbanded and it is not likely that a reproducible set of results can be obtained without a field-sample training group being established. The original site has been destroyed by the sampling so any return visit will not find the same soil. GPS may not be useful in re-locating the exact point. Experience suggests that the original site record will be of value in the relocation process.

Synthesised Product

These are raw data.

Interpreted Product

The horizons are named and the soil is classified on site. This is an interpretation by the soil surveyor from the raw data.

Influential Information

This information was not collected to influence policy.

A3. Grid or Transect Studies on Soil in Scotland

A3.1. Basic description

Title

Grid or Transect Studies of Soil Profiles

Dataset acronym

Original purpose

Provide a sample from which the spatial variability of soil properties could be estimated down to 5m distance. Characterise three soil series in Scotland and several experimental farms.

Dataset description

The grid or transect studies form subsets of the National Soils Database of Scotland. The data comprise a soil profile description at each sampled location. There are also analytical data from soil samples.

Data format

A view of the National Soils Database of Scotland.

Data Path

The data are stored in Oracle® tables on a unix server at the Macaulay Institute:

  • BASICINV table contains site characterisation data

Descriptions of each soil horizon (soil horizon morphology) and analytical data are contained in three tables:

  • ORGANICINV table holds data on organic horizons
  • MINERALINV table holds data on mineral horizons
  • ANALINV table holds systematic laboratory data derived from samples taken from individual horizons. Every 10km point was sampled and some of the 5km intersects

The tables are linked by grid reference and lab numbers.

Creator / author

Soil surveyors employed by the Macaulay Institute.

Author credentials

Soil surveyors with extensive field experience of soil classification and mapping described the soil profile morphology and collected the soil horizon samples.

Contributor

As for creator or author

Spatial coverage

Transect samples within Balrownie, Corby and Winton soil series mapping units. Grid samples were collected at 25m 100m and 1km intervals in a variety of locations across Scotland.

Time frame

Transect samples in 1987.

Spatial / temporal accuracy or precision

Transect sample spacings were measured on the ground using a tape measure. Grid samples were located by plotting site locations from maps onto aerial photographs.

Data currency

Currency depends on the temporal variation in individual attributes and we may need to break down the information into inherent / changeable. For example, sand content is inherent but organic carbon content is changeable.

Archival material

Direct entry into database. Soil sample material is archived at the Macaulay in the National Soils Archive of Scotland.

A3.2. Recording methods and standards

As for the NSIS data set described in Appendix A1.

A3.3 Recorded attributes

As for the NSIS data set described in Appendix A1, though with limited subsoil samples.

A3.4 Quality factors

As for the NSIS data set described in Appendix A1.

A4. MASQ: Monitoring and Assessing Soil Quality. Part of CS2000.

Material extracted from the MASQ Report.

A1.0 Relevance to threats and functions

Threat

Direct measurement

Surrogate data

Organic matter status

Soil organic carbon measured in samples by loss on ignition

Biodiversity change

Direct measures of invertebrates and heterotrophic bacteria

Structure or compaction

Erosion

Contamination

Heavy metal content of soils (7 metals)

Soil sealing

Urban areas were excluded from the field survey

Soil as a cultural resource

Flooding

Salinisation

Function

Direct measurement

Surrogate data

Biomass production

Soil pH was measured and assessed for change0

Environmental interactions

Biodiversity

Raw materials

Platform

Cultural heritage

A4.1. Basic description

Title

Monitoring and Assessing Soil Quality

Dataset acronym

MASQ

Original purpose

To provide good quality datasets for soil invertebrate and microbial communities, soil pH and organic matter and selected heavy metals and persistent organic pollutants.

Dataset description

The Centre for Environmental Hydrology was funded jointly by DEFRA, EA, SNIFFER and NERC, to carry out the project MASQ: Monitoring and Assessing Soil Quality (Black et. al. 2002). This formed part of the Countryside Survey 2000 (CS2000), with samples collected in 1998 and 1999. A high proportion of soil samples were collected from the same geographical locations as those for the Ecological Survey of Great Britain (ITE1978).

Data format

Oracle®

Data Path

An Oracle® database - The Countryside Survey 2000 Integrated Data System ( CIDS).

Project report - MASQ: Monitoring and Assessing Soil Quality in Great Britain.

Countryside Survey Module 6: Soils and Pollution. R&D Technical Report E1-063/TR. 2002. H I J Black, J S Garnett, G Ainsworth, P A Coward, R Creamer, S Ellwood, J Horne, M Hornung, V H Kennedy, F Monson, L Raine, D Osborn, N R Parekh, J Parrington, J M Poskitt, E Potter, N Reeves, A P Rowland, P Self, S Turner, J Watkins, C Woods and J Wright.

Creator / author

CEH, Funded by DEFRA, EA, SNIFFER and NERC.

Author credentials

ITE were instrumental in setting up the original survey in 1978.

Contributor

Spatial coverage

Great Britain

Time frame

Builds on the Institute of Terrestrial Ecology's National Ecological Survey of Great Britain (1978) and the Countryside Survey (1990)

Spatial / temporal accuracy or precision

Sample plots were marked on maps and then located in the field using maps and/or using markers left in 1990 with a metal detector. Once the plot was located survey poles were use tp mark out the

Data currency

Data were collected in 1998 and 1999

Archival material

A4.2. Recording methods and standards

Peer review

The initial sample design in 1978 was reviewed by the scientific community at the time. Subsequent designs have been through several discussion stages.

Standards

Recording methods

Full protocols are in the CS2000 Field Handbook. Protocols were developed for the sampling by staff in the Soil Ecology Section at CEH Merlewood. The design was tailored to be compatible with the 1978 soil samples and to allow rapid return of samples for biological analysis. All field surveyors were trained in them prior to the sampling campaign.

A4.3 Recorded attributes

Site data

Location; Environment Zone; Broad Habitats; Aggregate Vegetation Classes; Major Soil Group.

Analytical data from Topsoil samples collected in cores

Soil pH in water; loss-on-ignition (surrogate for soil organic matter).

Heavy metals by Inductively Coupled Plasma-Optical Emission Spectrometers ( ICP- OES): Cadmium (Cd), Copper (Cu), Chromium (Cr); Lead, (Pb), Nickel (Ni), Vanadium (V) and Zinc (Zn).

A novel analytical method was developed using GC- MS for the analysis of polyaromatic hydrocarbons ( PAHs), polychlorinated biphenyls ( PCBs) and organochlorine pesticides ( OCPs).

Soil invertebrates were extracted and identified.

Numbers and functional diversity of heterotrophic bacteria were identified.

A4.4 Quality factors

Quality Factor

Description

Original data

Yes. Data from field samples.

Primary / secondary data

The sample frame was drawn using a range of secondary data interpreted from several sources. The analytical data are primary data.

Objectivity of Substance

e.g. sampling strategy

The sampling strategy was designed to provide a restricted, stratified random sample of 1 kilometre grid squares across Great Britain. The sample strata were derived from multi-variate analysis of relief, climate, geology and settlement which yielded 32 classes. Eight sample squares were randomly selected within each of the classes for the 1978 sample. Further land classes and more sample squares have been added over the intervening years and for CS2000 there are now 40 land classes having 569 sample squares in GB with 203 in Scotland. Soil sampling was restricted to the 256 squares visited during the 1978 campaign.

Sample locations within each 1km square were selected according to protocols in the unpublished CS2000 field handbook. Top soil samples were taken with corers.

Objectivity of Presentation

The results were presented in a scientific report to the project funders. This report is in the public domain.

Analytical QA/ QC

Rigourous validation schemes were established for each range of determinands. Schemes are detailed in the project report.

Utility

Integrity

The data are managed by the Oracle® database administrator at CEH.

Transparency

(Leads to reproducibility)

Methods are detailed in an unpublished field handbook; transcripts of this are available in other reports. Analytical techniques are detailed in the project report.

Reproducibility

The methods are described in sufficient detail for the results to be reproducible in future sampling campaigns.

Synthesised Product

This is not a synthesised product.

Interpreted Product

The initial sample frame is based on interpretation. The results of the survey are based on sample measurements.

Influential Information

Yes.

A5. Soil Data in relation to Sludge (Use in Agriculture) Regulations 1989. Sampling and Testing of Soil (Schedule 2, Regulation 3)

The Scottish Environmental Protection Agency ( SEPA) provided a list of data they hold (M. Aitken. pers. comm.) and the information is summarised in Appendices 5, 6 and 7.

A5.1. Basic description

Title

Soil Data in Relation to Sludge (Use in Agriculture) Regulations.
Sampling and Testing of Soil (Schedule 2, Regulation3)

Dataset acronym

None

Original purpose

To allow SEPA to audit sludge producers in relation to Sludge (Use in Agriculture) Regulations 1989

Dataset description

pH and potentially toxic element ( PTE) analysis of soils which have received sewage sludge.

Data format

Paper records. Some of the data is electronic.

Data Path

Data held by SEPA Land Unit and also Agricultural Regulatory Team.

Creator or author

Created by sludge producers, such as Scottish Water or other PFI (Private Finance Initiative) operators and audited by SEPA.

Author credentials

Unknown

Contributor

SEPA contribute to auditing and supplementary field inspection and analysis.

Spatial coverage

Agricultural land where sludge has been applied (since 1989)

Time frame

From 1989 to present.

Spatial / temporal accuracy or precision

Grid references of fields supplied

Data currency

No temporal sampling is carried out unless further sludge is applied

Archival material

Data held by SEPA but soil samples are not archived.

A5.2. Recording methods and standards

Peer review

SEPA hold the register. Additional field inspection and samples are collected by SEPA to audit the register.

Standards

Additional sampling by SEPA is sometimes carried out. This can be during a field inspection of an agricultural unit, actioned as an outcome of a SEPA audit of a sludge producer register or for enforcement purposes.

Recording methods

Different recording methods used by each sludge producers e.g. Scottish Water or other PFI (Private Finance Initiative) operators.

A5.3 Recorded attributes

General data

Each field that has received sludge: Location; Amounts applied; Dates of application; Dry matter; weight of sludge applied, a Nutrient analysis; Heavy metal analysis; Type of sludge.

Mandatory analysis

Soil samples collected by the operator must be analysed for: pH; Cadmium; Copper; Chromium; Lead; Nickel; Zinc; Mercury.

Additional analysis

As listed in the Code of Practice and comprise: Molybdenum; Fluoride; Selenium; Total Nitrogen; Arsenic; Total Phosphorus

A5.4 Quality factors

Quality Factor

Description

Original data

Original data.

Primary / secondary data

Objectivity of Substance

e.g. sampling strategy

The sample frame is dictated by the locations of sludge. No control samples are collected from similar soil types with no sludge application, or from the field prior to application.

Within each field or part-field soil cores are collected by auger using the 'W' pattern protocol to provide a single composite as per Sludge Regs the soil is sampled to a depth of 25 cm and field size is no greater than 5 ha. . The spatial separation of individual composite samples partially depends on field size and shape.

Objectivity of Presentation

Data held by SEPA Land Unit and also Agricultural Regulatory Team.

Analytical QA/ QC

Methodology and standards as per Sludge (Use in Agriculture) Regulations 1989

Utility

Results could indicate, for example, how close to indicator levels the soil was in terms of the range of pollutants analysed.

Integrity

Data are held by SEPA and attribute values verified by further sample collection. See section on SEPA Field Inspections.

Transparency

(Leads to reproducibility)

The 'W' sample gives a degree of anonymity of location which may reduce reproducibility in large fields. More use of GPS could be made to locate samples to reduce the impact of autocorrelation.

Reproducibility

This should be easily achieved as field locations are easy to re-locate. The W pattern may not be the same on subsequent visits.

Synthesised Product

No.

Interpreted Product

No.

Influential Information

This information is collected by SEPA to enforce the Sludge (Use in Agriculture) Regulations 1989

A6 Soil Data in relation to Sludge (Use in Agriculture) Regulations 1989. Sampling and testing of Sludge (Schedule 1, Regulation 3)

A6.1. Basic description

Title

Soil Data in Relation to Sludge (Use in Agriculture) Regulations 1989.
Sampling and Testing of Sludge (Schedule 1, Regulation3)

Dataset acronym

None

Original purpose

When combined with application rates (where are these rates recorded?) can be used to determine heavy metal loadings on soils.

Dataset description

Nutrient and potentially toxic element ( PTE) analysis of sludges which have been applied to soils.

Data format

Paper records . Some of the data is electronic.

Data Path

Data held by SEPA Land Unit and also Agricultural Regulatory Team.

Creator or author

Created by sludge producers, such as Scottish Water or other PFI (Private Finance Initiative) operators and audited by SEPA.

Author credentials

Unknown

Contributor

SEPA contribute auditing and supplementary field inspection and analysis

Spatial coverage

Records detail locations of fields where the sampled sludge has been applied

Time frame

From 1989 to present.

Spatial / temporal accuracy or precision

Agricultural land where sludge has been applied (since 1989)

Data currency

Current at the time of sampling. The material is applied to land.

Archival material

Data held by SEPA but sludge samples are not archived.

A6.2. Recording methods and standards

Peer review

SEPA hold the register. Additional samples are collected by SEPA to audit the register.

Standards

Additional sampling by SEPA is sometimes carried out. This can be during a field inspection of an agricultural unit, actioned as an outcome of a SEPA audit of a sludge producer register or for enforcement purposes.

Recording methods

Different recording methods used by each sludge producers e.g. Scottish Water or other PFI (Private Finance Initiative) operators.

A6.3 Recorded attributes

Site data

Date of sampling.

Mandatory analysis

A representative sample of sludge must be analysed for: pH; Cadmium; Copper; Chromium; Lead; Nickel; Zinc; Mercury; Dry matter (dm); Total Nitrogen (as %dm); Total Phosphorus (as %dm).

Additional analysis

Additional analysis as listed in the Code of Practice for: Molybdenum; Fluoride; Selenium; Ammoniacal nitrogen (NH3-N); Arsenic

A6.4 Quality factors

Quality Factor

Description

Original data

Original data from sludge samples.

Primary / secondary data

Primary data

Objectivity of Substance

e.g. sampling strategy

No details of sample selection procedure from bulk sludge.

Objectivity of Presentation

Data held by SEPA's Land Unit and also Agricultural Regulatory Team.

Analytical QA/ QC

Methodology and standards as per Sludge (Use in Agriculture) Regulations 1989

Utility

Combine with application rates to determine heavy metal loading rates to soils. Could be used with current weather data to model changes in soil organic matter etc. after application.

Integrity

Data are held by SEPA and attribute values verified by further sample collection.

Transparency

(Leads to reproducibility)

Reproducibility

Sludge has gone to land so not possible to reproduce the sample.

Synthesised Product

No.

Interpreted Product

No.

Influential Information

This information is collected by SEPA to enforce the Sludge (Use in Agriculture) Regulations 1989

A7. British Geological Survey Data with sample Metadata page from the BGS website

A briefing document was prepared by BGS for the Scottish Executive (Lawley, Fordyce and Merritt, 2006). This document contains BGS input to the process of identifying soil threats.

Briefing document prepared by British Geological Survey for the Scottish

Executive at their request in respect of the current state of Scottish soils, May 2006) in relation to soil threats in Scotland.

A7.1. List supplied by BGS

The contact person for BGS data is Ms Fiona Fordyce, Murchison House, West Mains Road, Edinburgh EH9 3LA.

Tel: +44 (0)131 667 1000. Email: fmf@bgs.ac.uk

The following list of data sets (B. Smith, Pers Comm; ) are those which BGS judge to be most relevant for assessing the state of and threats to Scottish soils:

  • DiGMapGB-50 Scotland (including memoirs/sheet explanations)
  • Hydrogeology - Scotland - Aquifer Vulnerability
  • G-BASE Stream Sediment Chemistry
  • G-BASE Stream Water Chemistry
  • G-BASE Soils - presently limited to Greater Glasgow
  • Potentially Harmful Elements/Radon
  • Geohazard Datasets (especially Landslide, Shrink-swell, Compressibles, Running Sand)
  • Soil Parent Material Map
  • Mineral Assessment Reports and other industrial mineral appraisals
  • Mineral Resources Records
  • NextMap DTM
  • Remotely Sensed Data (Landsat to ATM)
  • Aerial Photography
  • Historic OS Maps (Landuse Change)
  • Legacy Geology FieldSlips
  • Borehole Archive
  • Mine Abandonment Plan Archive
  • Site Investigation Archive
  • Britrocks Sites and Active Quarries

There are two online catalogues (B. Smith, Pers Comm) of data sources relating to BGS and NERC research activities:

  • The first provides details of BGS-derived data sources available from the Geo-data portal (GeoIndex): http://www.bgs.ac.uk/geoindex/index.htm. This web site provides a GIS-like search facility to find information about all vector and raster datasets currently held and managed by BGS (ie DiGMapGB-50, SOBI, G-BASE, HiRES).
  • The second website details availability of remotely sensed data available through the NERC Earth Observation Data Centre: http://www.neodc.rl.ac.uk/index.php. This website offers a spatial search facility to find information about data that has been derived from Satellite sensors (atsr1/2,ikonos, landsat-7 etm, radarsat, spot, avhrr, aatsr, envisat) and Airborne sensors (nextmap, atm, casi, lidar, shac, photography). Information relating to the characteristics of each data type can also be found at this site.

A7.2. Example of a BGS metadata sheet

Example of a BGS metadata sheet

Example of a BGS metadata sheet

A8. SNH data list.

There do not seem to be any sets of soil samples in the SNH data. SNH generally commission research and data are generated for them under contract. In the listing here, the first two columns list the data sent from SNH, and columns three and four indicate the project team's assessment of their applicability to the threats to soil.

A8.1. List of SNH Information on Soils

No.

SNH Information

Useful for Threat

Note

1

Bing sites

Soil sealing

2

Cairngorms Geomorphology West

Not relevant as too localised and not soils data

3

EUrosion data

Includes land cover for 10km coastal strip among other data. Likely that any soils data will be derived from national soils data set and this proviso will apply to all European studies.

4

Landscape Character Assessments

Cultural heritage assessment

5

Landscape Character Revision 1. 1.4

The previous data reclassified / revised

6

Saltmarsh sites

Location of some saline soils

7

Sand Dune Sites

Erosion

OM decline

Rare soils

Development for Golf

Full but incomplete cover of Scotland

8

LCM2000

Land Cover Map 2000

Above-ground Biodiversity

Automatic / knowledge base classification of satellite images. Compatible with Broad Habitat classes defined for Biodiversity Action Plan. Accuracy concerns for heathlands and grasslands / bogs

9

CORINE

Sealing. Resolution / accuracy may be an issue.

Land cover derived from satellite data.

10/11

Grazing and trampling impact case studies.

Compaction

Above-ground biodiversity

Macaulay carried out work

12

Native Woodland Model

Uses existing soil data

13

Inventory of Ancient and Long-Established Woodland Sites

OM changes

Rare soil distribution

14

Caledonian Pinewood Inventory

Rare soil distribution.

15

National Inventory of Woodlands and Trees

LCS88 augmented by Forestry Commission

16

Dedicated Woodland

OM changes

17

Scottish Forestry Grant Scheme

Above-ground biodiversity

Flood management??

18

Scottish Forestry Grant Scheme - Fences

19

Scottish Semi-Natural Woodland Inventory

Rare soils

20

Scottish Semi-Natural Woodland Inventory on Ancient and Long-Established Woodland Sites

Rare soils

21

Felling Licence Applications

Catchment hydrology change

OM change

Erosion

22

Forest Districts

23

Forest Enterprise Land

24

Forest Plans - Approvals

25

Forestry Conservancies

26

Indicative Forestry Strategy

27

Intermediate Peat Bogs in Scotland

Rare soils

28

Peat Soils

Poor resolution

29

Lowland Raised Bogs

30

BGS Solid Geology

Original data from BGS

31

BGS Sand and Gravel - Midland Valley

Original data from BGS

32/33

BGS Solid Geology - Midland Valley

Original data from BGS

34

Environmentally Sensitive Areas

Aim to reduce the impact of threats

35

Less Favoured Areas

OM increasing - less ploughing?

36

Biological Records Centres

37

Higher Plants in Scotland

38

Rare Plants Database

Biodiversity

Rare soils/habitats

39

NVC Surveys

Biodiversity

Rare soil / vegetation combination

40

Birks and Ratcliffe Surveys

Some correspondence with NVC but requires interpretation

41

Local Biodiversity Action Plan ( LBAP) Areas

42

Groundwater Nitrate Vulnerable Zone ( NVZ)

Contamination

43

Historic Land Use Assessment

Cultural Heritage

44

Land Cover of Scotland 1988 (LCS88)

Soil Sealing

Biodiversity

45

Register of Species Rich Hedgerows in Scotland

Biodiversity

46

Scottish Wildlife Trust Wildlife Sites

Biodiversity

Surveys of the Site habitats are carried out according to SWT manual.

47

Scottish Wildlife Trust Reserves

48

Woodland Grant Scheme

Natural regeneration or neglected woodland management categories may be of use.

A9. Scottish Soil Fertility Information System pre 1996

A9.1. Basic description

Title

Scottish Soil Fertility Information System pre 1996

Dataset acronym

SSFIS1996

Original purpose

Analysis carried out for soils which had some fertility-related problem

Dataset description

Data format

Oracle table

Data Path

Creator or author

Scottish Agricultural College

Author credentials

Contributor

Samples collected by SAC staff or by landowner/user

Spatial coverage

Agricultural areas in Scotland. Samples are collected where a fertility lack is suspected.

Time frame

Discontinued in 1996. Replaced by SSFIS1996+

Spatial / temporal accuracy or precision

Sampling carried out on a 'W' pattern within a field or unit of 5 hectares, whichever is smaller. The samples are thus accurate to an area of approximately 5 ha.

Data currency

Discontinued in 1996. Replaced with a LIMS-based system. See Appendix A11.

Archival material

A9.2. Recording methods and standards

Not available at time of compilation.

A9.3 Recorded attributes

Site data

National Grid Reference; Code for Scottish Agricultural College office nearest to the farm; Farm type (Hill; Upland; Lowland; Horticulture); Enterprise type (Dairy; Beef/sheep; Arable; Mixed; X=other); Soil series from soil maps; Year and month of receipt for analysis.

Analytical data

pH in water; Acetic acid extractable phosphorous (to end March 1992); Ammonium acetate/acetic acid extractable phosphorous (May 1992 onwards)

A9.4 Quality factors

Quality Factor

Description

Original data

Analytical data from samples collected in the field.

Primary / secondary data

Primary data.

Objectivity of Substance
e.g. sampling strategy

Sampling carried out on a 'W' pattern within a field or unit of 5 hectares, whichever is smaller.

Objectivity of Presentation

Analytical QA/ QC

Utility

Integrity

Transparency

(Leads to reproducibility)

Reproducibility

Synthesised Product

Interpreted Product

Influential Information

A10. Scottish Soil Fertility Information System post 1996

A10.1. Basic description

Title

Scottish Soil Fertility Information System post 1996

Dataset acronym

SSFIS1996+

Original purpose

Analysis carried out for soils which had some fertility-related problem

Dataset description

The Soil Fertility Information System, SFIS, database was discontinued in 1996. At that time the laboratory moved over to a LIMS system which is still in use today. There were plans to migrate the data from the SFIS system to the LIMS system but unfortunately it has never been completed. One problem with the migration was the extraction methods for the soil routine method had changed from acetic acid to Modified Morgan's. (Routine P, K, Mg, Ca and Na). It had been recognised that with acidic soils the Modified Morgan's method was more appropriate. ( Pers comm. From Alister Gay, SAC)

Data format

Laboratory Information Management System

Data Path

Creator or author

Scottish Agricultural College ( SAC)

Author credentials

Contributor

Samples collected by SAC staff or by landowner/user

Spatial coverage

Agricultural areas in Scotland. Samples are collected where a fertility lack is suspected.

Time frame

Continuation from SSFIS

Spatial / temporal accuracy or precision

Sampling carried out on a 'W' pattern within a field or unit of 5 hectares, whichever is smaller.

Data currency

1996 onwards

Archival material

A10.2. Recording methods and standards

Peer review

Standards

Recording methods

A10.3 Recorded attributes

Site data

Not recorded on a systematic basis.

Soil data

Texture Classification ; Texture
Lime requirement arable; SOLRAI; Lime requirement grass; SOLRGI

Analytical data

Fresh pH; pH

Total nitrogen; Soil Total Carbon; Derived Organic Matter; Organic matter by LOI; Organic Matter (wet oxid); Mineralisable ammonium; Mineralisable nitrate; Nitrate nitrogen (CaSO4)

Acid soluble fluoride; Water extract. sulphate

Cation exchange capacity

ADAS pH; ADAS ext. potassium; ADAS ext. magnesium; ADAS ext. sodium; ADAS ext. phosphorus

Conductivity; Conductivity (sat. CaSO4)

Aqua regia digests

Aluminium; Arsenic; Boron; Barium; Calcium; Cadmium; Cobalt; Chromium; Copper; Iron; Mercury; Potassium; Magnesium; Manganese; Molybdenum; Sodium; Nickel; Phosphorus; Lead; Sulphur; Selenium; Tin; Zinc

Extractable

Aluminium; Boron; Calcium; Cobalt; Chromium; Copper; Iron; Potassium; Magnesium; Manganese; Molybdenum; Sodium; Ammonium; Nickel; Nitrate; Phosphorus; Lead; Sulphur; Nitrate; Phosphorus; Lead; Sulphur; Zinc

Extractable after 28 day incubation

NH4; NO3

A10.4 Quality factors

Quality Factor

Description

Original data

Analytical data from samples collected in the field.

Primary / secondary data

Primary data.

Objectivity of Substance

e.g. sampling strategy

Sampling carried out on a 'W' pattern within a field or unit of 5 hectares, whichever is smaller.

Objectivity of Presentation

Analytical QA/ QC

Utility

Integrity

Transparency
(Leads to reproducibility)

Reproducibility

Synthesised Product

Interpreted Product

Influential Information

A11. Trends in Pollution of Scottish Soils

A11.1. Basic description

Title

Trends in Pollution of Scottish Soils

Dataset acronym

TIPSS

Original purpose

To provide a 'snapshot in time' of the pollution loadings in some Scottish soils and provide some indication of what might be considered the background levels in more pristine environments

Dataset description

Scotland, like many countries in Europe, has a legacy of pollution largely emanating from the Industrial Revolution in the 19th Century, although some pollution can be traced back to even our earliest civilizations. In addition, some types of pollution have no boundaries and arrive here from other countries on the prevailing winds. In 1990, the Macaulay Institute undertook a survey of a series of surface soils from four transects across Scotland to assess the pollution caused by atmospheric deposition.. Data are presented on levels of persistent organic pollutants, such as polychlorinated biphenyls ( PCBs) and polynuclear aromatic hydrocarbons ( PAHs), as well as radiocaesium and the heavy metals, cadmium, copper, lead, nickel and zinc.

Further information is available at http://www.macaulay.ac.uk/tipss, where the survey is described and maps of pollutants are displayed (pages active on 27 June 2006).

Data format

Spreadsheets

Data Path

Creator or author

Macaulay Land Use Research Institute

Author credentials

Sites selection / sample collection by an experienced soil survey staff member.

Contributor

None

Spatial coverage

Equal spaced intervals along four transects crossing mainland Scotland:

  • North Scotland from Applecross to Caithness (8 samples)
  • Central Highlands from Argyll to Buchan (8 samples)
  • Central Valley from Renfrew to Angus (6 samples)
  • Southern Uplands from Wigtown to Berwickshire (8 samples)

Surface soil horizons, mainly under heather moorland.

Time frame

Samples were collected in 1990 and 1999. No analysis has yet been done for the 1999 sample set.

Spatial / temporal accuracy or precision

Precise locations of the sample points are confidential.

Data currency

Archival material

Samples are stored in the National Soils Archive of Scotland

A11.2. Recording methods and standards

As for the National Soils Inventory described in Appendix A1.

A11.3 Recorded attributes

Site data

Elevation; Vegetation type; Site photographs

Soil data

Soil types

Analytical data

Caesium-137; polycyclicaromatic hydrocarbons ( PAHs); polychlorinated biphenyls ( PCBs); Cadmium; Copper; Zinc; Lead; Nickel

A11.4 Quality factors

Quality Factor

Description

Original data

Measurements made on soil samples

Primary / secondary data

Primary data

Objectivity of Substance
e.g. sampling strategy

Sample sites were selected to be approximately equally space along four transects aligned from south-west to north-east.

Objectivity of Presentation

Presented on the Macaulay web site

Analytical QA/ QC

Utility

Integrity

Transparency
(Leads to reproducibility)

Reproducibility

Synthesised Product

No

Interpreted Product

No

Influential Information

Not relevant

« Previous | Contents | Next »

Page updated: Thursday, September 21, 2006