APIS Bibliography

Title	Authors	Year
Critical levels of air pollutants for Europe	Ashmore, M.…	1994
Shoot nitrate reductase activities of field-layer species in different forest types.	Hogborn, L…	1994
Group report: are chemical and biological changes reversible?	Dise, N.B…	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
Impacts of nitrogen deposition in terrestrial ecosystems in the United Kingdom	INDITE,	1994
Does nitrogen supply limit the growth of Antarctic lichens?	Crittenden…	1994
Group report: interactions among acidification, phosphorus, contaminants and biota in freshwater ecosystems	Landers, D.…	1994
Effects of atmospheric ammonia on vegetation - a review	Fangmeir, A…	1994
An experimental investigation into the effects of atmospheric nitrogen deposition on two semi-natural grasslands	Morecroft,…	1994