خيارات البحث
النتائج 131 - 140 من 219
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.
A mobile rain exclusion canopy system to determine dose-response relationships for crops and forest species
1986
Kuja, A. (Ontario Ministry of the Environment, Toronto (Canada). Air Resources Branch) | Jones, R. | Enyedi, A.
The influence of mycorrhizal associations on paper birch and jack pine seedlings when exposed to elevated copper, nickel or aluminum
1986
Jones, M.D. (Toronto Univ. (Canada). Dept. of Botany) | Browning, M.H.R. | Hutchinson, T.C.
Effect of the quantity and duration of application of simulated acid precipitation on nitrogen mineralization and nitrification in a forest soil
1986
Klein, T.M. (Cornell Univ., Ithaca, NY (USA). Dept. of Agronomy) | Alexander, M.
DDT residues in the river Jamuna in Delhi, India
1986
Agarwal, H.C. (Delhi Univ. (India). Dept. of Zoology) | Mittal, P.K. | Menon, K.B. | Pillai, M.K.K.
Patterns of acid deposition to a Danish spruce forest
1986
Freiesleben, N.E. v. (Technical Univ. of Denmark, Lyngby (Denmark). Lab. of Environmental Sciences and Ecology) | Ridder, C. | Rasmussen, L.
Changes in fish populations in southernmost Norway during the last decade
1986
Sevaldrud, I.H. (Directorate for Nature and Management, Trondheim (Norway). Fish Research Div.) | Skogheim, O.K.
Potential leaching of elements in three Danish spruce forest soils
1986
Rasmussen, L. (Technical Univ. of Denmark, Lyngby (Denmark). Lab. of Environmental Sciences and Ecology)
Summarizing comments on air pollution and forest decline
1986
Henriksen, H.A.
Inventory of forest vitality in Sweden
1986
Bengtson, G.
