| Title | Authors | Year | 
|---|---|---|
| Methane Emissions | 
                               Williams, A…  | 
                                                                                        1994 | 
| The calculation of weathering rates and their role in the determination of critical loads | 
                               Langan, S.J…  | 
                                                                                        1994 | 
| Effect of different forms and sources of arsenic crop yield and arsenic concentration | 
                               Jiang, Q ;…  | 
                                                                                        1994 | 
| Nitrous oxide from agriculture | 
                               Granli, T…  | 
                                                                                        1994 | 
| Critical levels for ozone; a UNECE workshop report | 
                               Fuhrer, J…  | 
                                                                                        1994 | 
| Critical Loads of Acidity in the United Kingdom | 
                               UKCLAG,  | 
                                                                                        1994 | 
| Scotland's soils: Research issues in developing a soil sustainability strategy | 
                               Billett, M.…  | 
                                                                                        1994 | 
| An experimental investigation into the effects of atmospheric nitrogen deposition on two semi-natural grasslands | 
                               Morecroft,…  | 
                                                                                        1994 | 
| Critical levels of air pollutants for Europe | 
                               Ashmore, M.…  | 
                                                                                        1994 | 
| The effects of excess nitrogen deposition on young Norway spruce trees. Part I: the soil | 
                               Wilson, E.J…  | 
                                                                                        1994 |