APIS Bibliography

Title	Authors	Year
Effects of nitrogen fertilisation on the humus layer vegetation under closed canopy in boreal coniferous stands	Mäkipää, R…	1994
Acidification of freshwater ecosystems: implications for the future	Rosseland,…	1994
Effects of ozone on interactions between plants, consumers and decomposers.	Jones, C.G…	1994
The calculation of weathering rates and their role in the determination of critical loads	Langan, S.J…	1994
Accumulation of amino acids in some boreal forest plants in response to increased nitrogen availability	Näsholm, T…	1994
Relationship between heavy metal accumulation and toxicity in Spirodella polyrhiza and Azolla pinnata	Gaur, J. P…	1994
Long-term changes in watershed retention of nitrogen - its causes and aquatic consequences	Stoddard, J…	1994
Effects of atmospheric ammonia and ammonium sulphate on vesicular-arbuscular mycorrhizal colonisation in three heathland species	Heijine, B…	1994
Causal mechanisms by which sulphate, nitrate and acidity influence frost hardiness in red spruce: review and hypothesis.	Sheppard, L…	1994
Does nitrogen supply limit the growth of Antarctic lichens?	Crittenden…	1994