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Art Johnson

Organization: University of Pennsylvania, Surficial Processes and Environmental Geology

Affiliations: Surficial Processes and Environmental Geology, University of Pennsylvania


Contact Information

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List of Projects

Project Role Start End
Plant-Available Forest Soil Calcium Reduced by Half from 1930s to 2006 in AdirondacksProject Lead/Principal Investigator 2005-01-01 Ongoing

Documents

Name Date Authors Type
Seventy-four years of calcium loss from forest soils of the Adirondack Mountains, New York2009Art Johnson, James BedisonPublication
A comparison of soil organic matter content in 1932, 1984, and 2005/6 in forests of the Adirondack Mountains, New York2009Art Johnson, James BedisonPublication
Seven decades of calcium depletion in organic horizons of Adirondack forest soils2008Art Johnson, James BedisonPublication
Controls on the spatial patterns of carbon and nitrogen in Adirondack forest soils along a gradient of nitrogen deposition2008Art Johnson, James BedisonPublication
Two decades of change in vegetation in Adirondack spruce-fir, northern hardwood and pine-dominated forests2007Art Johnson, James BedisonPublication
Updated radial growth trends for red spruce in the northern Appalachian and Adirondack Mountains1999Barry Sims, John Donnelly, Art JohnsonPublication