Soil protozoa data from Sourhope field experiment site, Scotland [NERC Soil Biodiversity Programme] - Finlay, B.J.; Black, H.I.J.; Brown, S.; Clarke, K.J.; Esteban, G.F.; Hindle, R.M.; Olmo, J.L.; Rollett, A.; Vickerman, K.; Buckland, S. (NERC Environmental Information Data Centre, 2018)