APIS Bibliography

Title	Authors	Year
Setting critical loads for dystrophic peat - a new approach.	Wilson, E.J…	1994
Effects of nitrogen fertilisation on the humus layer vegetation under closed canopy in boreal coniferous stands	Mäkipää, R…	1994
The calculation of weathering rates and their role in the determination of critical loads	Langan, S.J…	1994
Effects of ozone on interactions between plants, consumers and decomposers.	Jones, C.G…	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
The effect of zinc powder on the growth of the unicellular alga Selenastrum capricornutum	Van Woensel…	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
The Influence of Carbon Dioxide or Ozone Concentration on Growth and Assimilate Partitioning in Seedlings of Nine Conifers.	Mortensen,…	1994