APIS Bibliography

Title	Authors	Year
Factors influencing nitrogen saturation in forest ecosystems: Advances in our understanding since the mid 1980s. in the impact of nitrogen deposition on natural and semi-natural ecosystems	Wilson, E.J…	1999
Chemistry of Atmospheres	Wayne, R.P…	1999
Nitrogen and its effects on growth, nutrient status and parasite attacks in beech and Norway Spruce	Flückiger,…	1999
Action for Scotland's Biodiversity	Usher, (Eds…	1999
Undergrowth as a biomonitor for deposition of N and acidity in pine forest.	Van Dobben…	1999
Some effects of N on ectomycorrhizal diversity of Scots pine (Pinus sylvestris L.) in northeastern Germany.	Wöllecke, J…	1999
Distribution in Portugal of some pollutants in the lichen Parmelia sulcata	Freitas, M…	1999
The effects of quantity and duration of simulated pollutant nitrogen deposition on root-surface phosphatase activities in Calcareous and acid grasslands: a bioassay approach	Johnson, D…	1999
The influence of wooded shelterbelts on the deposition of copper, lead and zinc at Shakerley Mere, Cheshire, England	Heath, B. A…	1999
Inventory of information sources on chemicals Persistent Organic Pollutants	UNEP,	1999