| Title | Authors | Year |
|---|---|---|
| A survey of the health of Fagus sylvatica in southern Britain. |
Ling, K.A… |
1993 |
| Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain |
Woodin, S.J… |
1993 |
| Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees. |
Cape, J.N… |
1993 |
| Insects and Pollution |
Helivvaara… |
1993 |
| North Sea quality status report 1993 |
OSPARCOM,… |
1993 |
| Atmospheric deposition of sulphur and nitrogen in heathland ecosystems. |
Bobbink, R… |
1993 |
| The effect of external stress and disturbance factors on Calluna dominated heathland vegetation. |
Berdowski,… |
1993 |
| The Deposition of Atmospheric Ammonia and Its Effects on Plants |
Pearson, J… |
1993 |
| Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation |
Faafeng, B… |
1993 |
| Critical Loads: Concepts and Applications |
Harriman, R… |
1993 |