Title Authors Year
Concurrent exposure to SO2 and/or NO2 alters groweth and Yield responses of wheat and barley to low concentrations of O3.

Adaros, G…

1991
Increases in soil acidity in north west Wales between 1957 and 1990

…

1991
Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen

Pitcairn, C…

1991
Decline of ectomycorrhizal fungi in Europe.

Arnolds, E…

1991
Nitrate in soil water

Westling, O…

1991
Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.

Mansfield,…

1991
Environmental Health Criteria 125 Platinum

WHO,

 		1991
The mechanisms of arsenate tolerance in Deschampsia cespitosa (L.) Beauv. and Agrostis capillaris L. Adaptation of the arsenate uptake system

Meharg, A.…

1991
The effects of acid deposition on nature conservation in Great Britain

Ormerod, S.…

1991
Zeigerwerte von Pflanzen in Mitteleuropa

Ellenberg,…

1991