@article {1104, title = {The interactions between plant growth, vegetation structure and soil processes in semi-natural acidic and calcareous grasslands receiving long-term inputs of simulated pollutant nitrogen deposition}, journal = {Environmental Pollution}, volume = {121}, year = {2003}, author = {Carroll, J.A. and Caporn, S.J.M and Johnson, D. and Morecroft, M.D. and Lee, J.A.} }