خيارات البحث
النتائج 181 - 190 من 266
Watershed 89: the future for water quality in Europe proceedings of the IAWPRC Conference, held in Guildford, U.K., 17-20 April 1989. 1st ed.
1989
Wheeler D. | Richardson M. | Bridges J.
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.
Al uptake by black spruce seedlings: persistence of organic acids in Al treated rooting cultures
1989
Arp, P.A. (New Brunswick Univ., Fredericton (Canada). Dept. of Forest Resources) | D'Avignon, H.
Use of 90Sr in fish vertebrae as an effluent exposure tracer in PCB-contaminated channel catfish
1989
Southworth, G.R. (Oak Ridge National Lab., Oak Ridge, TN (USA))
Geochemical studies in a remote Scottish upland catchment, 2: Streamwater chemistry during snow-melt
1989
Abrahams, P.W. (East Anglia Univ., Norwich (UK). School of Environmental Sciences) | Tranter, M. | Davies, T.D. | Blackwood, I.L.
Effect of simulated acid rain on the yield of soybean
1989
Kohno, Y. (Central Research Inst. of Electric Power Industry, Abiko City, Chiba (Japan). Dept. of Biology) | Kobayashi, T.
Toxicity of lead to Clarias lazera, Oreochromis niloticus, Chironomus tentans and Benacus sp.
1989
Oladimeji, A.A. (Ahmadu Bello Univ., Zaria (Nigeria). Dept. of Biological Sciences) | Offem, B.O.
Liming and fertilization as mitigation tools in declining forest ecosystems
1989
Huettl, R.F. (Albert-Ludwig-Universitaet, Freiburg (Germany, F.R.). Inst. of Soil Science and Forest Nutrition)
Copper toxicity and chemistry in the environment: a review
1989
Flemming, C.A. (Guelph Univ. (Canada). Dept. of Environmental Biology) | Trevors, J.T.
Total sulfur content in the humus layer of urban polluted forest soils
1989
Ohtonen, R. (Oulu Univ. (Finland). Dept. of Botany) | Markkola, A.M. | Torvela, H.
