خيارات البحث
النتائج 331 - 340 من 374
Soil lead levels in orchards and roadsides of mission Peninsula, Michigan
1997
Francek, M.A. (Central Michigan Univ., Mt. Pleasant, MI (USA). Dept. of Geography and Earth Science)
Principal forest dieback episodes in Northern Hardwoods: development of numeric indices of areal extent and severity
1997
Auclair, A.N.D. (Science and Policy Associates Inc., Washington, DC (USA).) | Eglinton, P.D. | Minnemeyer, S.L.
Effect of copper smelting air pollution on the mites (Acari) associated with young Scots pine forests polluted by a copper smelting works at Giogow, Poland. 1. Arboreal mites
1997
Seniczak, S. (University of Technology and Agriculture, Bydgoszcz (Poland). Dept. of Ecology) | Dabrowski, J. | Dlugosz, J.
Increased cadmium availability to crops on a sewage-sludge amended soil
1997
Tichy, R. (Institute of Landscape Ecology, Ceske Budejovice (Czech Republic).) | Nydl, V. | Kuzel, S. | Kolar, L.
Diagnosis of boron, fluorine, lead, nickel and zinc toxicity in citrus plantations in Villarreal, Spain
1997
Aucejo, A. (Valencia Univ., Burjassot (Spain). Dept. de Ingenieria Quimica) | Ferrer, J. | Gabaldon, C. | Marzal, P. | Seco, A.
Rhizosphere microbial populations in contaminated soils
1997
Nichols, T.D. (Arkansas Univ., Fayetteville, AR (USA). Dept. of Agronomy) | Wolf, D.C. | Rogers, H.B. | Beyrouty, C.A. | Reynolds, C.M.
Long-term changes in forest soil acidity in Pennsylvania, U.S.A.
1997
Drohan, J.R. (Pennsylvania State Univ., University Park, PA (USA).) | Sharpe, W.E.
Ion leaching before and after clear-cutting in a Norway spruce stand: effects of long-term application of ammonium nitrate and superphosphate
1997
Berden, M. (Swedish Univ. of Agricultural Sciences, Uppsala (Sweden). Dept. of Soil Sciences) | Nilsson, S.I. | Nyman, P.
Effects of watershed liming on Picea rubens seedling biomass and nutrient element concentration
1997
Smallidge, P.J. (Frostburg State Univ., Frostburg, MD (USA). Dept. of Biology) | Leopold, D.J.
Effects of metals on the microbial mineralization of organic acids
1997
Brynhildsen, L. (Linkoeping Univ. (Sweden). Dept. of Water and Environmental Studies) | Rosswall, T.
