APIS Bibliography

Title	Authors	Year
Air pollution and agriculture	Ashmore, M.…	1991
Influence of HN3 and (HN4)2 SO4 on heathland vegetation	Van der…	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
Forestry and soil protection in the UK	Moffatt, A.…	1991
Physiological effects of long term exposure to low concentrations of SO2 and NH3 on poplar leaves.	Hove, L.W.A…	1991
The Distribution and Breeding Site Characteristics of Newts in Cumbria, England.	Denton, J.S…	1991
Increases in soil acidity in north west Wales between 1957 and 1990	…	1991
Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.	Mansfield,…	1991
Nitrate in soil water	Westling, O…	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