APIS Bibliography

Title	Authors	Year
Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil	Houdijk, A.…	1993
Effect of acid rain on pine needles as food for capercaillie in winter	Spidsx, T.K…	1993
Estimating the relative contribution of SOx, NOx and NHx inputs to effects of atmospheric deposition	Sutton, M.A…	1993
Stratospheric Aerosol Optical Depths, 1850-1990.	Sato, M. ;…	1993
Atmospheric deposition of sulphur and nitrogen in heathland ecosystems.	Bobbink, R…	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
Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland	Black, K.E…	1993
Terrestrial SSSIs at risk from soil acidification in Wales	Sketch, C.A…	1993
Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain	Woodin, S.J…	1993