| Title | Authors | Year |
|---|---|---|
| Influence of HN3 and (HN4)2 SO4 on heathland vegetation |
Van der… |
1991 |
| Concurrent exposure to SO2 and/or NO2 alters groweth and Yield responses of wheat and barley to low concentrations of O3. |
Adaros, G… |
1991 |
| Acid deposition: its nature and impacts |
Last, F.T… |
1991 |
| Forestry and soil protection in the UK |
Moffatt, A.… |
1991 |
| Increases in soil acidity in north west Wales between 1957 and 1990 |
… |
1991 |
| Acidic deposition: its nature and impacts |
Last, F.T… |
1991 |
| Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen |
Pitcairn, C… |
1991 |
| Critical Load Maps for the United Kingdom I: Soil |
UKCLAG, |
1991 |
| Acid Rain - Critical and Target Load Maps for the United Kingdom |
Environment… |
1991 |
| Conservation of freshwater fish in the British Isles: the current status and biology of threatened species. Aquatic Conservation |
Maitland, P… |
1991 |