APIS Bibliography

Title	Authors	Year
Manual on methodologies and criteria for mapping critical levels/loads and geographical areas where they are exceeded	UNECE,	1996
A preliminary map of the distribution of methane emissions from livestock sources in Great Britain	Sutton, M.A…	1996
Growth variation of Scots Pine across a pollution gradient on the Kola peninsula, Russia	Nojd, P.;…	1996
Assessing the critical load of SO2 for Scots Pine in situ.	Manninen, S…	1996
Freshwater sponges (Porifera: Spongillidae) of Norway: Distribution and ecology.	Økland, K.A…	1996
Optimal quantum yield of photosystem II and chlorophyll degradation of Lobaria pulmonaria in relation to pH Lichenologist	Gauslaa, Y…	1996
Natural and anthropogenic enrichments of As, Cu, Pb and Zn in ombrotrophic versus minerotrophic peat bog profiles	Shotyk, W…	1996
Effects of atmospheric nitrogen deposition on ericoid mycorrhizal infection of Calluna vulgaris growing in peat soils	Yesmin, L…	1996
The effect of long-term elevated ozone concentrations on the growth and photosynthesis of Sphagnum recurvum and Polytrichum commune	Potter, L…	1996
Estimates of nitrous oxide emissions in the UK	Skiba, U.;…	1996