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1979, Pennsylvania State University School of Forest Resources, Pennsylvania State University Institute for Research on Land and Water Resources, Pinchot Institute for Environmental Forestry Research, Utilization of municipal sewage effluent and sludge on forest and disturbed land: proceedings of a symposium, Pen State University Press During the second year of operation, however, only the vegetationless area exceeded the guidelines.
Source: wiktionary
The vegetationless site also contiguous to the woodlots has remained uncultivated for the past 10 years and barring weed growth has no other vegetation.
Source: wiktionary
The lack of fines in a sand-rich vegetationless environment may also be related to a greater aeolian influence, evidenced in the Athabasca Group, as dust storms effectively remove mud from the depositional areas.
Source: wiktionary