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
Examining the Cr uptake of ryegrass from inorganic compounds and sewage sludge in pot experiements	Loch, J ;…	1993
Air Pollution and Tree Health in the United Kingdom	DOE, .	1993
Stratospheric Aerosol Optical Depths, 1850-1990.	Sato, M. ;…	1993
The effect of external stress and disturbance factors on Calluna dominated heathland vegetation.	Berdowski,…	1993
Terrestrial SSSIs at risk from acidification in Scotland	Ross, A.…	1993
Diet and Habitat Use of the Dotterel Charadrius-Morinellus in Scotland	Galbraith,…	1993
Terrestrial SSSIs at risk from soil acidification in Wales	Sketch, C.A…	1993