This dataset consists of soil physico-chemical properties (pH, loss on ignition, bulk density, moisture content, carbon stock and concentration, total nitrogen, Olsen phosphorus) from soils sampled from up to 591 1km squares across Great Britain in 2007. The Countryside Survey is a unique study or 'audit' of the natural resources of the UK's countryside. The sample sites are chosen from a stratified random sample, based on a 15 by 15 km grid of GB. Surveys have been carried out in 1978, 1984, 1990, 1998 and 2007 by the Centre for Ecology & Hydrology, with repeated visits to the majority of squares. The countryside is sampled and surveyed using rigorous scientific methods, allowing us to compare new results with those from previous surveys. In this way we can detect the gradual and subtle changes that occur in the UK's countryside over time. In addition to soil data, habitat areas, vegetation species data, linear habitat data, and freshwater habitat data are also gathered by Countryside Survey.
Please note: the use of Olsen P data, particularly in relation to acidic soils, is controversial. Please ensure these data are suitable for your requirements and exercise caution in their use.
The following acknowledgement shall be used on all copies of the data, publications and reports, including use in presentations to any audience. 'Countryside Survey data owned by NERC Centre for Ecology & Hydrology'
Soil samples were collected in the summer of 2007 by professional field surveyors. Data were recorded from up to 591 1km squares sited across Britain, selected by random stratified sample. Samples were analysed according to standardised protocols at the Centre for Ecology & Hydrology in 2007. Data are managed by the Centre for Ecology & Hydrology.