| Title | Authors | Year | 
|---|---|---|
| Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil | 
                               Houdijk, A.…  | 
                                                                                        1993 | 
| Chromium toxicity in Salvia scarea I Effects of hexavalent chromium on seed germination and seedline development | 
                               Corraddi, M…  | 
                                                                                        1993 | 
| A new potential air-quality criterion derived from vertical flux densitites of ozone and from plant response | 
                               Grunhage, L…  | 
                                                                                        1993 | 
| Reproduction in two submersed macrophytes declines progressively at low pH. | 
                               Titus, J.E…  | 
                                                                                        1993 | 
| Effect of acid rain on pine needles as food for capercaillie in winter | 
                               Spidsx, T.K…  | 
                                                                                        1993 | 
| The Environmental Implications of UK Sulphur Emission Policy Options for England and Wales | 
                               Farmer, A.M…  | 
                                                                                        1993 | 
| A survey of the health of Fagus sylvatica in southern Britain. | 
                               Ling, K.A…  | 
                                                                                        1993 | 
| Stratospheric Aerosol Optical Depths, 1850-1990. | 
                               Sato, M. ;…  | 
                                                                                        1993 | 
| Terrestrial SSSIs at risk from acidification in Scotland | 
                               Ross, A.…  | 
                                                                                        1993 | 
| Terrestrial SSSIs at risk from soil acidification in Wales | 
                               Sketch, C.A…  | 
                                                                                        1993 |