Title Authors Year
The effects of quantity and duration of simulated pollutant nitrogen deposition on root-surface phosphatase activities in Calcareous and acid grasslands: a bioassay approach

Johnson, D…

1999
Concentration and distribution of extractable elements in a soil affected by tillage systems and fertilization

Lavado, R.…

1999
Phytoaccumulation of trace elements by wetland plants II Water hyacinth

Zhu, Y. L…

1999
The influence of wooded shelterbelts on the deposition of copper, lead and zinc at Shakerley Mere, Cheshire, England

Heath, B. A…

1999
Inventory of information sources on chemicals Persistent Organic Pollutants

UNEP,

 		1999
Ozone stimulates protonematal growth and gametophore production in Polytrichum commune

Petersen, R…

1999
Oak forest development as a result of historical land-use patterns and present N deposition

Tyburk, K…

1999
Cronartium flaccidum fruitbody production on Melampyrum spp and some important alternate hosts to pine.

Kaitera, J…

1999
Ozone threshold doses and exposure response relationships for the development of ozone injury symptoms in wild plant species.

Bergmann, E…

1999
Action for Scotland's Biodiversity

Usher, (Eds…

1999