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Effects of crown decline on increment in Norway spruce (Picea abies (L.) Karst) in southern Sweden
1989
Bjoerkdahl, G. | Eriksson, H. (Swedish Univ. of Agricultural Sciences, Garpenberg (Sweden). Dep. of Forest Yield Research)
Comparisions of forest soils in relation to acid precipitation in Central Norway, South Norway and Schwarzwald in West Germany
1989
Aune, E.I. (Vitenskapsmuseet, Trondheim (Norway). Botanisk Inst.) | Dahl, E. (Norges Landbrukshoegskole, Aas (Norway). Botanisk Inst.) | Loees, A.K. (Stiftelsen for Oekologisk Landbruk, Tingvoll (Norway))
Effect of local air pollution on the sporophore production of mycorrhizal fungi, mycorrhizae and microbial activity in Scots pine forests
1989
Ohtonen, R. | Markkola, A.M. (Oulu University (Finland). Dep. of Botany)
[Effects of gaseous air pollutants and acid precipitation on forest trees: biochemical and physiological effect determination]
1989
Bender, J. (Bundesforschungsanstalt fuer Landwirtschaft, Braunschweig (Germany, F.R.). Inst. fuer Produktions- und Oekotoxikologie) | Jaeger, H.J.
Ground water pollution potential of Mercer County, Ohio
1989
Sugar, David J.
Ground water pollution potential of Lorain County, Ohio
1989
Barber, Douglas J.
Ground water pollution potential of Hamilton County, Ohio
1989
Air pollution research and development needs
1989
Industrial air pollution and forest dieback
1989
Pathak, Saroj N.
Monitoring of gaseous pollutants by tunable diode lasers
1989
Grisar, R.