خيارات البحث
النتائج 71 - 80 من 347
Optimizing air quality management in Europe and North America: justification for integrated management of both oxidized and reduced forms of nitrogen
1998
Cowling, E.B. | Erisman, J.W. | Smeulders, S.M. | Holman, S.C. | Nicholson, B.M. (College of Forest Resources, North Carolina State University, Box 8002, Raleigh, NC 27695 (USA))
Environmental contamination and developmental abnormalities in eggs and hatchlings of the common snapping turtle (Chelydra serpentina serpentina) from the Great Lakes-St Lawrence River basin (1989-91)
1998
Bishop, C.A. | Ng, P. | Pettit, K.E. | Kennedy, S.W. | Stegeman, J.J. | Norstrom, R.J. | Brooks, R.J. (Environment Canada, Canadian Wildlife Service, 867 Lakeshore Road, Box 5050, Burlington, Ontario, L7R 4A6 (Canada))
Agricultural NH3 and NOx emissions in Canada
1998
Kurvits, T. | Marta, T. (Symbiotics Consulting, Ottawa (Canada))
Regional mass budgets of oxidized and reduced nitrogen and their relative contribution to the nitrogen inputs of sensitive ecosystems
1998
Fowler, D. | Sutton, M.A. | Smith, R.I. | Pitcairn, C.E.R. | Coyle, M. | Campbell, G. | Stedman, J. (Institute of Terrestrial Ecology, Edinburgh, Bush Estate, Penicuik, Midlothian, EH26 0QB (United Kingdom))
Spatial planning as a tool for decreasing nitrogen loads in nature areas
1998
Bleeker, A. | Erisman, J.W. (National Institute of Public Health and the Environment (RIVM), Bilthoven (Netherlands))
Turnover of carbon and nitrogen in coniferous forest soils of different N-status and under different 15NH4-N application rate
1998
Sjoberg, R.M. | Persson, T. (Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences, P.O. Box 7072, S-750 07 Uppsala (Sweden))
Nitrate leaching in dairy farming: economic effects of environmental restrictions
1998
Groeneveld, R. | Bouwman, A.F. | Kruitwagen, S. | Ierland, E.C. van (Department of Economics and Management, Environmental Economics Group, Wageningen Agricultural University, P.O. Box 8130, 6700 EW, Wageningen (Netherlands))
Heavy metal concentrations in consecutive saturation extracts of dredged sediment derived surface soils
1998
Tack, F.M.G. | Singh, S.P. | Verloo, M.G. (Laboratory for Analytical Chemistry and Applied Ecochemistry, University of Ghent, Coupure Links 653, B-9000 Gent (Belgium))
Identifying factors which modify the effects of ambient ozone on white clover (Trifolium repens) in Europe
1998
Ball, G.R. | Benton, J. | Palmer-Brown, D. | Fuhrer, J. | Skarby, L. | Gimeno, B.S. | Mills, G. (Department of Computing, The Nottingham Trent University, Burton Street, Nottingham, NG1 4BU (United Kingdom))
Chemistry of soil solutions under different kinds of vegetation in the vicinity of a thermal power station
1998
Fernandez-Sanjurjo, M.J. | Alvarez, E. | Vega, V.F. | Garcia-Rodeja, E. (Departamento de Edafologia y Quimica Agricola, Facultad de Biologia, Universidad de Santiago de Compostela, E-15706 Santiago de Compostela (Spain))
