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Humans Have Huge Impact on Soil Loss

Human impact on soil loss.A new University of Vermont study on soil loss reveals that removing native forest and starting intensive agriculture can accelerate erosion so dramatically that in a few decades soil loss is as high as would naturally occur over thousands of years. Along the southern Piedmont from Virginia to Alabama — that stretch of rolling terrain between the Appalachian Mountains and the coastal plain of the Atlantic Ocean — clay soils built up for many millennia. Then, in just a few decades of intensive logging and cotton and tobacco production, as much soil eroded as would have in a pre-human landscape over thousands of years, the scientists note. The study on soil loss was presented in the journal Geology and reported in the March 2015 issue of Acres U.S.A.

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