APIS Bibliography

Title	Authors	Year
Influence of HN3 and (HN4)2 SO4 on heathland vegetation	Van der…	1991
Air pollution and agriculture	Ashmore, M.…	1991
Physiological-effects of long-term exposure to low concentrations of SO2 and NH3 on poplar leaves	Hove, L.W.A…	1991
Forestry and soil protection in the UK	Moffatt, A.…	1991
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
The Distribution and Breeding Site Characteristics of Newts in Cumbria, England.	Denton, J.S…	1991
Acid rain since 1985 - times are changing	Brydges, T.…	1991
A Field-Study of Fertilization and Embryonic Development in the Common Frog (Rana-Temporaria) with Particular Reference to Acidity and Temperature	Beattie, R.…	1991
Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen	Pitcairn, C…	1991