خيارات البحث
النتائج 141 - 150 من 266
Nutient leaching from dormant trees at an elevated site
1989
Schuepp, P.H. (McGill Univ., Ste. Anne-de-Bellevue, Que. (Canada). Macdonald Coll., Dept. of Renewable Resources) | Hendershot, W.H.
Nutritional disturbances and histological changes in declining forests
1989
Zoettl, H.W. (Albert-Ludwigs-University, Freiburg im Breisgau (Germany). Inst. of Soil Science and Forest Nutrition) | Huettl, R.F. | Fink, S. | Tomlinson, G.H. | Wisniewski, J.
Impact of acid fog and ozone on coastal red spruce
1989
Jagels, R. (Maine Univ., Orono, ME (USA). Dept. of Forest Biology) | Carlisle, J. | Cunningham, R. | Serreze, S. | Tsai, P.
Influence of O3, rainfall acidity and soil Mg status on growth and ectomycorrhizal colonization of loblolly pine roots
1989
Simmons, G.L. (Tennessee Vallay Authority, Oak Ridge, TN (USA). Cooperative Forest Studies Program) | Kelly, J.M.
Trace element concentrations in fish from three Adirondack lakes with different pH values
1989
Heit, M. (Environmental Measurement Lab. USDE, New York (USA)) | Schofield, C. | Driscoll, C.T. | Hodgkiss, S.S.
Water uptake by black spruce seedlings from rooting media (solution, sand, peat) treated with inorganic and oxalated aluminum
1989
Arp, P.A. (New Brunswick Univ., Fredericton (Canada). Faculty of Forestry) | Strucel, I.
Differences in acid tolerance during the early life stages of three strains of brook trout, Salvelinus fontinalis
1989
Hurley, G.V. (Hurley Fisheries Consulting Ltd., Dartmouth, N.S. (Canada)) | Foyle, T.P. | White, W.J.
Effect of simulated acid rain on the growth of soybean
1989
Kohno, Y. (Central Research Inst. of Electric Power Industry, Abiko City, Chiba (Japan). Abiko Research Lab.) | Kobayashi, T.
Effects of simulated acid rain on uptake, accumulation and retention of fluoride in forage crops
1989
MacLean, D.C. (Cornell Univ., Ithaca, NY (USA). Boyce Thompson Inst.) | Schneider, R.E. | Hansen, K.S. | Troiano, J.J.
[Structural changes of silver fir and Norway spruce needles following fumigation experiments]
1989
Ruetze, M. (Bundesforschungsanstalt fuer Forst- und Holzwirtschaft, Hamburg (Germany, F.R.). Inst. fuer Holzbiologie und Holzschutz) | Schmitt, U. | Liese, W.