Title Authors Year
Nitrogen and drought effects on ectomycorrhizae of Norway spruce [Picea abries L. (Karst.)].

Nilsen, P…

1998
Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: the pitfalls of biological monitoring.

Van Dobben…

1998
Soil nitrous oxide and nitric oxide emissions as indicators of the exceedance of critical loads of atmospheric nitrogen deposition in semi-natural ecosystems

Skiba, U.;…

1998
National Recommended Water Quality Criteria

EPA, US

 		1998
Early effects of acid mist on Sitka spruce planted on acid peat.

Sheppard, L…

1998
The relationship between nitrogen deposition, species composition and foliar nitrogen concentrations in woodland flora in the vicinity of livestock farms.

Pitcairn, C…

1998
Effects of N additions on the stress sensitivity of Calluna vulgaris.

Poser, S.A…

1998
UNECE Critical Levels Workshop Proceedings

Guderian, R…

1998
Modelling the spatial distribution of ammonia emissions in the UK

Dragosits,…

1998
The nitrogen content of upland rivers in Britain: the significance of organic N

Chapman, P.…

1998