The National Soils Inventory for Scotland (NSIS) is an objective sample of Scottish soils. Soil and site conditions of 721 locations throughout Scotland were sampled using a 10 km grid across the entire country, aligned with the National Grid ofGreat Britain (Lilly et al., 2010). Samples were taken at multiple depths from soil pits and analysed to determine their physical and chemical properties. The NSIS dataset is one of the
most significant contributions to the Scottish Soil Database in terms of data quality and quantity. The data provide good estimates of means and regional variations in a range of soil properties and attributes and inform the soil classification for Scotland.