| Title | Authors | Year |
|---|---|---|
| Human impacts on the nitrogen cycle: A global problem judged from a local perspective |
Hessen, D.O… |
1997 |
| Ecology of dunes, salt marsh and shingle |
Packham, J.… |
1997 |
| Air pollution an introduction |
Colls, J.… |
1997 |
| The significance of nitrogen runoff for eutrophication of freshwater and marine recipients |
Hessen, D.O… |
1997 |
| The influence of nitrogen fertilization on the carbon economy of Paxillus involutus in ectomycorrhizal association with Betula pendula |
Ek, H. |
1997 |
| Ultrastructural changes and electrolyte leakage from ozone fumigated epiphytic lichens. |
Tarhanen, S… |
1997 |
| Canadian water quality guidelines for chromium |
Pawlisz, A… |
1997 |
| Responses of Norwegian alpine Betula nana community to nitrogen fertilization |
Paal, J.;… |
1997 |
| Stem growth reductions in mature Sitka spruce trees exposed to acid mist |
Crossley, A… |
1997 |
| Mapping of rainfall chemistry in Ireland 1972-94 |
Jordan, C… |
1997 |