APIS Bibliography

Title	Authors	Year
Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation	Faafeng, B…	1993
Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees.	Cape, J.N…	1993
Chromium toxicity in Salvia scarea I Effects of hexavalent chromium on seed germination and seedline development	Corraddi, M…	1993
How Britain hides its acid soil	Pearce, F…	1993
Reproduction in two submersed macrophytes declines progressively at low pH.	Titus, J.E…	1993
A new potential air-quality criterion derived from vertical flux densitites of ozone and from plant response	Grunhage, L…	1993
Examining the Cr uptake of ryegrass from inorganic compounds and sewage sludge in pot experiements	Loch, J ;…	1993
A survey of the health of Fagus sylvatica in southern Britain.	Ling, K.A…	1993
The effect of external stress and disturbance factors on Calluna dominated heathland vegetation.	Berdowski,…	1993
The Deposition of Atmospheric Ammonia and Its Effects on Plants	Pearson, J…	1993