Title Authors Year
Options for reducing the negative effects of nitrogen in agriculture

Freney, J.…

2005
The restoration and re-creation of species-rich lowland grassland on land formerly managed for intensive agriculture in the UK.

Walker, K.J…

2004
Wie geht es unserem Wald? Ergebnisse aus Dauerbeobachtungsflachen von 1984 bis 2004

Flackiger,…

2004
Manual on methodologies and criteria for modelling and mapping critical loads and levels and air pollution effects risks, and trends,

UNECE,

 		2004
Impact of nitrogen deposition on the species richness of grasslands

Stevens, C.…

2004
Differential effects of nitrate and ammonium on three fen bryophyte species in relation to pollutant nitrogen input.

Paulissen,…

2004
A review of surface ozone background levels and trends.

Vingarzan,…

2004
Growth and tissue nitrogen of epiphytic Atlantic bryophytes: effects of increased and decreased atmospheric N deposition.

Mitchell, R…

2004
Growth, production and interspecific competition in Sphagnum: effects of temperature, nitrogen and sulphur treatments on a boreal mire.

Gunnarsson…

2004
Aluminium concentration versus the base cation to aluminium ratio as predictors for aluminium toxicity in Pinus sylvestris and Picea abies seedlings.

Van Scholl…

2004