Soil survey in England, Scotland and Wales carried out during 2013 and 2014 [LTLS] - Toberman, H.; Adams, J.; Tipping, E.; Schillereff, D.; Somerville, C.; Coull, M.; Helliwell, R.; Carter, H.; Guyatt, H.; Keenan, P.; Lawlor, A.; Pereira, M.G.; et al. (NERC Environmental Information Data Centre, 2016)