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Результаты 131-140 из 219
Snow chemistry in the Flin Flon area of Manitoba, 1981-1984
1986
Phillips, S.F. (Manitoba Dept. of Environment and Workplace Safety and Health, Winnipeg (Canada)) | Wotton, D.L. | McEachern, D.B.
Avoidance of low pH and elevated Al concentrations by brook charr (Salvelinus fontinalis) alevins in laboratory tests
1986
Gunn, J.M. (Guelph Univ., Guelph, Ont. (Canada). Dept. of Zoology) | Noakes, D.L.G.
Rain, snow and lake water chemistry on and near the precambrian shield of western Canada
1986
Shewchuk, S.R. (Saskatchewan Research Council, Saskatoon (Canada))
Precipitation chemistry measurement in Alberta
1986
Bertram, H.L. (Alberta Environmental Centre, Vegreville (Canada)) | Das, N.C. | Lau, Y.K.
Acid deposition and effects in Nordic Europe; damage to fish populations in Scandinavia continue to apace
1986
Rosseland, B.O. (Directorate for Nature and Management, Trondheim (Norway). Fish Research Div.) | Skogheim, O.K. | Sevaldrud, I.H.
Biology and chemistry of three Pennsylvania lakes: responses to acid precipitation
1986
Bradt, P.T. (Centre for Marine and Environmental Studies, Bethlehem, PA (USA)) | Dudley, J.L. | Berg, M.B. | Barrasso, D.S.
Responses of five species of conifer seedlings to aluminum stress
1986
Hutchinson, T.C. (Toronto Univ. (Canada). Dept. of Botany) | Bozic, L. | Munoz-Vega, G.
Bone concentration of manganese in white sucker (Catostomus commersoni) from acid, circumneutral and metal-stressed lakes
1986
Harvey, H.H. (Toronto Univ. (Canada). Dept. of Zoology) | Fraser, G.A. | McArdle, J.M.
Microclimate and plant growth in open-top chambers
1986
Water pollution by fertilizers and pesticides
1986
This study reflects the growing consensus among experts whose viewpoints were not always the same that some changes in agricultural practices are necessary to limit the environmental costs to society.--Publisher's description.
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