APIS Bibliography

Title	Authors	Year
Sphagnum species and polluted environments, past and future	Lee, J.A.;…	1993
Critical loads for peat soils	Cresser, M.…	1993
Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation	Faafeng, B…	1993
Chromium toxicity in Salvia scarea I Effects of hexavalent chromium on seed germination and seedline development	Corraddi, M…	1993
Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil	Houdijk, A.…	1993
SSSIs in England at risk from acid rain	Bissett, K…	1993
Effect of acid rain on pine needles as food for capercaillie in winter	Spidsx, T.K…	1993
Review of the impact of current and future acid deposition in Wales	Reynolds, B…	1993
The effect of external stress and disturbance factors on Calluna dominated heathland vegetation.	Berdowski,…	1993
Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain	Woodin, S.J…	1993