| Title | Authors | Year | 
|---|---|---|
| Forest soil chemical changes between 1949-50 and 1987 | 
                               Billett, M.…  | 
                                                                                        1990 | 
| The nutritional status of Picea abies (L.) Karst. across Europe, and implications for "forest decline". | 
                               Cape, J.N…  | 
                                                                                        1990 | 
| The difficulties of abating smoke in Late Victorian York | 
                               Bowler, C…  | 
                                                                                        1990 | 
| Acidic Deposition, its nature and impacts, Glasgow Conference Abstracts | 
                               Caporn, S.J…  | 
                                                                                        1990 | 
| Calculated rates of soil acidification of intensively used grassland in the Netherlands. | 
                               Oenema, O…  | 
                                                                                        1990 | 
| Exchange of greenhouse gases between terrestrial ecosystems and the atmosphere | 
                               Bouwman, A.…  | 
                                                                                        1990 | 
| Bryophytes and Nutrient Cycling | 
                               Brown, D.H…  | 
                                                                                        1990 | 
| Afforestation and Lake Acidification: A Comparison of Four Sites in Scotland. | 
                               Kreiser, A.…  | 
                                                                                        1990 | 
| Yield Responses of Different Crop Species to Long-Term Fumigation with Sulphur Dioxide in Open-Top Chambers | 
                               Weigel, H.J…  | 
                                                                                        1990 | 
| Fresh-water acidification - its effects on species and communities of fresh-water microbes, plants and animals | 
                               Muniz, I.P…  | 
                                                                                        1990 |