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Resultados 161-170 de 347
Alternative strategies for reducing nitrogen loading
1998
Jensen, J.J. | Skop, E. (National Environmental Research Institute, Department of Policy Analysis, P.O. Box 358, DK-4000, Roskilde (Denmark))
Emission reduction scenarios for nitrogen compounds and their impact on acidification, eutrophication and ozone formation in Flanders
1998
Mensink, C. | Beirens, F. (VITO, Boeretang 200, B-2400 Mol (Belgium))
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))
