خيارات البحث
النتائج 191 - 200 من 266
Metals in sediment of lakes in northern Sweden
1989
Johansson, K. (National Environmental Protection Board, Solna (Sweden). Research and Development Dept.)
Metal fluxes to Swedish forest lakes
1989
Borg, H. (National Environmental Protection Board, Solna (Sweden). Research and Development Dept.) | Johansson, K.
Effects of heavy metals in soil on microbial processes and populations (a review)
1989
Baaaath, E. (Lund Univ. (Sweden). Dept. of Microbial Ecology)
Critical metal concentrations for forest soil invertebrates
1989
Bengtsson, G. (Lund Univ. (Sweden). Dept. of Animal Ecology) | Tranvik, L.
Natural stresses, nutrient imbalances and forest decline in southeastern Quebec
1989
Bernier, B. (Laval Univ., Quebec City, Qc. (Canada). Dept. of Forest Sciences) | Pare, D. | Brazeau, M.
Climate change and forest decline: a review of the red spruce case
1989
Cook, E.R. (Lamont-Doherty Geological Observatory, Palisades, NY (USA). Tree-Ring Lab.) | Johnson, A.H.
A study to determine effects of simulated acidic rain on yield of field-grown soybeans (Glycine max cv. Hodgson)
1989
Kuja, A. (Ontario Ministry of the Environment, Toronto, Ontario (Canada). Phytotoxicology Section) | Dixon, M.
Inhibitory effects of SO2 on biofiltration of aldehydes
1989
Langenhove, H. van (State Univ. of Gent (Belgium). Faculty of Agricultural Sciences, Lab. of Organic Chemistry) | Lootens, A. | Schamp, N.
Improved growth in stunted brown trout (Salmo trutta L.) after reliming of Lake Hovvatn, southern Norway
1989
Barlaup, B.T. (Bergen Univ. (Norway). Museum of Zoology) | Aatland, A. | Raddum, G.G. | Kleiven, E.
Incidence of fin erosion and anomalous fishes in a polluted stream and a nearby clean stream
1989
Reash, R.J. (Ohio State Univ., Columbus, OH (USA). Environmental Biology Program) | Berra, T.M.
