APIS Bibliography

Title	Authors	Year
Critical levels of air pollutants for Europe	Ashmore, M.…	1994
Impacts of nitrogen deposition on terrestrial ecosystems	UKRGIAN,…	1994
Shoot nitrate reductase activities of field-layer species in different forest types.	Hogborn, L…	1994
Response of blue spruce (Picea pungens) to manganese pollution from MMT	Forget, E…	1994
Acidification of freshwater ecosystems: implications for the future	Rosseland,…	1994
Regional and historical variation in the nitrogen-content of Racomitrium lanuginosum in Britain In relation to atmospheric nitrogen deposition	Baddeley, J…	1994
Effects of zinc and copper on growth and metal accumulation in duckweed, Lemna minor	Dirilgen, N…	1994
Accumulation of amino acids in some boreal forest plants in response to increased nitrogen availability	Näsholm, T…	1994
Effects of atmospheric ammonia and ammonium sulphate on vesicular-arbuscular mycorrhizal colonisation in three heathland species	Heijine, B…	1994
Long-term changes in watershed retention of nitrogen - its causes and aquatic consequences	Stoddard, J…	1994