| Title | Authors | Year | 
|---|---|---|
| Atmospheric deposition of sulphur and nitrogen in heathland ecosystems. | 
                               Bobbink, R…  | 
                                                                                        1993 | 
| Effects of acidic gases and mists on the reproductive capability of 3 fern species | 
                               Lawrence, P…  | 
                                                                                        1993 | 
| The Deposition of Atmospheric Ammonia and Its Effects on Plants | 
                               Pearson, J…  | 
                                                                                        1993 | 
| The influence of nitrogen fertilization on ectomycorrhizas and their fungal corpophores in young stands of Pinus sylvestris | 
                               …  | 
                                                                                        1993 | 
| Dissolved inorganic nitrogen budget for a forested catchment at Beddgelert, North Wales | 
                               Stevens, P.…  | 
                                                                                        1993 | 
| Reproduction in two submersed macrophytes declines progressively at low pH. | 
                               Titus, J.E…  | 
                                                                                        1993 | 
| Critical Loads - Concepts and Applications | 
                               Cresser, M.…  | 
                                                                                        1993 | 
| Stratospheric Aerosol Optical Depths, 1850-1990. | 
                               Sato, M. ;…  | 
                                                                                        1993 | 
| The Environmental Implications of UK Sulphur Emission Policy Options for England and Wales | 
                               Farmer, A.M…  | 
                                                                                        1993 | 
| Terrestrial SSSIs at risk from acidification in Scotland | 
                               Ross, A.…  | 
                                                                                        1993 |