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Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils
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Roadless space of the conterminous United States

Raymond D Watts1, Roger W Compton, John H McCammon

  • 1U.S. Geological Survey (USGS), Fort Collins, CO 80526-8118, USA. rwatts@usgs.gov

Science (New York, N.Y.)
|May 5, 2007
PubMed

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