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Resultados 71-80 de 282
Effects of simetryne on growth of various freshwater algal taxa
1993
Kasai, F. | Takamura, N. | Hatakeyama, S. (Regional Environment Division, National Institute for Environmental Studies, Tsukuba, Ibaraki 305 (Japan))
Lemna minor membranes affected by adjuvants
1993
Caux, P.Y. | Weinberger, P. (Environment Canada, Eco-Health Branch, Ecosystems Sciences and Evaluations Directorate, Ottawa, Ont. K1A 0H3 (Canada))
No general effect of ozone on foliar nutrient concentrations in mature scions of grafted Picea abies trees
1993
Ogner, G. (The Norwegian Forest Research Institute, Hogskoleveien 12, N-1432, As (Norway))
Modelling long-term cation supply in acidified forest stands
1993
Warfvinge, P. | Falkengren-Grerup, U. | Sverdrup, H. | Andersen, B. (Department of Chemical Engineering II, Lund Institute of Technology, PO Box 124, S-221 00 Lund (Sweden))
Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees
1993
Cape, J.N. (Institute of Terrestrial Ecology, Bush Estate, Penicuik, Midlothian, EH26 0QB (United Kingdom))
Dry deposition of nitrogen and sulfur to ponderosa and Jeffrey pine in the San Bernardino National Forest in southern California
1993
Fenn, M.E. | Bytnerowicz, A. (Pacific Southwest Forest and Range Experimental Station, USDA-FS, Forest Fire Laboratory, 4955 Canyon Crest Drive, Riverside, California, 92507 (USA))
Conifer aphids in an air-polluted environment. I. Aphid density, growth and accumulation of sulphur and nitrogen by Scots pine and Norway spruce seedlings
1993
Holopainen, J.K. | Mustaniemi, A. | Kainulainen, P. | Satka, H. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
Seasonal and annual distribution of organic contaminants in marine sediments from Elkhorn Slough, Moss Landing Harbor and nearshore Monterey Bay, California
1993
Rice, D.W. | Seltenrich, C.P. | Spies, R.B. | Keller, M.L. (Lawrence Livermore National Laboratory, Livermore, CA 94550 (USA))
The effects of cadmium and zinc interactions on the accumulation and tissue distribution of zinc and cadmium in lettuce and spinach
1993
McKenna, I.M. | Chaney, R.L. | Williams, F.M. (Graduate Degree Program in Ecology, Pennsylvania State University, University Park, PA 16802 (USA))
Whole-plant growth and leaf formation in ozonated hybrid poplar (Populus x euramericana)
1993
Matyssek, R. | Gunthardt-Goerg, M.S. | Landolt, W. | Keller, T. (Swiss Federal Institute for Forest, Snow, and Landscape Research, Zurcherstr. 111, CH-8903 Birmensdorf ZH (Switzerland))