Land Information System

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Interpretations of the National Soil Map of England and Wales

NATMAP Subsoil Texture

Subsoil Texture Map

NATMAPsubsoiltexture is a new product derived from the National Soil Map. It provides users with a useful, concise, easily interpreted and applicable description of the range of texture classes typical across England and Wales.

Key Facts and Statistics about NATMAPsubsoiltexture

  • Simplified rendition of the national soil map;
  • 22 distinct classes

Who and what is this useful for?

NATMAPsubsoiltexture is useful for anyone wanting generalised and simple-to-understand information of the subsoil soil texture at a 1:250,000 scale. The subsoil texture dataset allows the user to explore the likely spatial variation of the dominant and subdominant texture classes across England and Wales. This variation can be used as input into environmental models which are influenced by the textural composition of the soil matrix. The subsoil texture at 40cm depth is particularly useful for modelling soil influence on buried assets such as pipelines and archaeology. As this is a simplified dataset, it may or may not represent the soil texture at any given location.

How was this map derived?

For each soil series represented on the National Soil Map the subsoil texture class was determined from the particle size distribution and organic carbon data held in the HORIZONfundamentals dataset at a depth of 40 cms. This data was then compared to the definition of each soil series given in TM17 "Criteria for differentiating soil series" as the subsoil texture is a defining characteristic of soil series. Where differences between the defined subsoil texture and the calculated class arose these were examined by a soil expert and where necessary the calculated classes were altered to better reflect the known properties of the soil series. Once each soil series was assigned to a subsoil texture class the proportions of each soil series within the soil associations represented on the National Soil map was used to determine the dominant soil texture and the proportions of each texture class.


How much does this product cost?

  • £250 per 1,000 km2.
  • Significant discounts apply for larger areas.

For detailed pricing information, use our Quotation Advisor utility.

NATMAP subsoil texture data and description

Soil Texture Triangle showing legend colours

In addition a 'rock' class has been added for those shallow soils that reach rock within 40 cms.

The table below describes the various properties within this data

product. Each polygon contains the information outlined below.

Property Example from data Description
TEXTURE silty clay loam The dominant Texture Class in the polygon
C 0 Percentage of the polygon under clay
CL 35 Percentage of the polygon under clay loam
ZC 0 Percentage of the polygon under silty clay
ZCL 50 Percentage of the polygon under silty clay loam
SCL 0 Percentage of the polygon under sandy clay loam
CSL 0 Percentage of the polygon under coarse sandy loam
MSZL 0 Percentage of the polygon under medium sandy silt loam.
CSZL 0 Percentage of the polygon under coarse sandy silt loam
ZL 0 Percentage of the polygon under silt loam
SCL 0 Percentage of the polygon under sandy clay loam
FSL 0 Percentage of the polygon under fine sandy loam
MSL 0 Percentage of the polygon under medium sandy loam
FSZL 0 Percentage of the polygon under fine sandy silt loam
LFS 0 Percentage of the polygon under loamy fine sand
LMS 0 Percentage of the polygon under loamy medium sand
LCS 0 Percentage of the polygon under loamy coarse sand
FS 10 Percentage of the polygon under fine sand
MS 10 Percentage of the polygon under medium sand
LP 0 Percentage of the polygon under loamy peat
PL 0 Percentage of the polygon under peaty loam
PS 0 Percentage of the polygon under peaty sand
P 0 Percentage of the polygon under peat
R 0 Percentage of the polygon with rock at 40cms
SHAPE 2 Feature ID code which links with the spatial description of the data within a geodatabase
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