National Soil Inventory (NSI) data is a set of point data. NSI data covers
England and Wales on a 5 km grid and provides detailed information for each
intersect of the grid. Collectively NSI data are statistically representative of
England and Wales soils and they offer a valuable foundation for future
monitoring of soil quality. The original sampling was from around 1980 and there
have been partial resamplings in the mid-1990s.
NSI site includes erosion, landuse and lithological information. NSI profile
gives a very detailed soil description including stone abundance, root
descriptions and boundary information. NSI topsoil gives detailed measurements
of over 20 elements from the soils, in addition to pH. NSI textures describes
the soil texture. NSI features provides depth data to various layers and
includes a flood risk indicator.