| Title | Authors | Year |
|---|---|---|
| Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation |
Faafeng, B… |
1993 |
| Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain |
Woodin, S.J… |
1993 |
| Terrestrial SSSIs at risk from soil acidification in Wales |
Sketch, C.A… |
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 |
| 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 |
| A survey of the health of Fagus sylvatica in southern Britain. |
Ling, K.A… |
1993 |
| The effect of external stress and disturbance factors on Calluna dominated heathland vegetation. |
Berdowski,… |
1993 |
| Salt-Marsh Processes - a Review |
Vernberg, F… |
1993 |