[ 发表于: Pollution ]
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The effects of conservation tillage practices on benthic invertebrate communities in headwater streams in southwestern Ontario, Canada
1997
Barton, D.R. | Farmer, M.E.D. (Department of Biology, University of Waterloo, Ontario, N2L 3G1 (Canada))
Department for Environment, Food and Rural Affairs - United Kingdom
The environmental consequences of the conservation tillage adoption decision in agriculture in the United States
1998
Uri, N.D. (Economic Research Service USDA, Washington, DC (USA). Natural Resources and Environment Div.)
Wageningen University & Research - Netherlands
