[ 发表于: Pollution ]
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结果 181-190 的 333

Making the link between science and policy: controlling N losses from agriculture in Canada

1998

Kimpe, C.R. de | MacDonald, K.B. (Agriculture and Agri-Food Canada, Sir John Carling Building, Ottawa, Ontario, K1A 0C5 (Canada))

Department for Environment, Food and Rural Affairs - United Kingdom

Nitrification in organic and mineral soil layers in coniferous forests in response to acidity

1998

Rudebeck, A. | Persson, T. (Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences, P.O. Box 7072, S-750 07 Uppsala (Sweden))

Department for Environment, Food and Rural Affairs - United Kingdom

Changes in tree ring chemistry in sugar maple (Acer saccharum) along an urban-rural gradient in southern Ontario

1998

Watmough, S.A. | Hutchinson, T.C. | Sager, E.P.S. (Environmental Resource Studies Program, Trent University, Peterborough, Ontario, K9J 7B8 (Canada))

Department for Environment, Food and Rural Affairs - United Kingdom

Polychlorinated biphenyls in a rural watershed in the southern prairie region of Canada

1998

Rawn, D.F.K. | Halldorson, T.H.J. | Lawson, B.D. | Muir, D.C.G. (Department of Soil Science, University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada))

Department for Environment, Food and Rural Affairs - United Kingdom

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))

Department for Environment, Food and Rural Affairs - United Kingdom

Effects of nitrogen deposition on field layer vegetation in south Swedish oak forests

1998

Brunet, J. | Diekmann, M. | Falkengren-Grerup, U. (Department of Conservation Biology, Swedish University of Agricultural Sciences, Box 7002, S-750 07 Uppsala (Sweden))

Department for Environment, Food and Rural Affairs - United Kingdom

Atmospheric deposition of nitrogen compounds in the Czech Republic

1998

Zapletal, M. (Environmental Monitoring Centre - Ekotoxa Opava, Homi nam. 2, 746 01 Opava (Czech Republic))

Department for Environment, Food and Rural Affairs - United Kingdom

A comparison of biochemical responses to oxidative and metal stress in seedlings of barley, Hordeum vulgare L

1998

Jita Patra | Panda, B.B. (Genetic Toxicology Laboratory, Department of Botany, Berhampur University, Berhampur-760 007, Orissa (India))

Department for Environment, Food and Rural Affairs - United Kingdom

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))

Department for Environment, Food and Rural Affairs - United Kingdom

Nitrogen response of herbs and graminoids in experiments with simulated acid soil solution

1998

Falkengren-Grerup, U. (Department of Plant Ecology, Lund University, Ecology Building, S-223 62 Lund (Sweden))

Department for Environment, Food and Rural Affairs - United Kingdom