Abstract
MINING of coal by either strip (open cast) or deep-mining methods leaves large quantities of raw rock overburden and waste on the surface and revegetation of such spoils presents great reclamation problems. Survival and growth of plants are hampered by a variety of physical and chemical features of the spoils; in particular, poor growth has been attributed to lack of plant nutrients, especially nitrogen. Nevertheless, investigations of anthracite coal mine spoils in the vicinity of Tamaqua, Pennsylvania, showed that the nitrogen available to plants may be very abundant in certain spoils composed of black pyritiferous shales.
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CORNWELL, S., STONE, E. Availability of Nitrogen to Plants in Acid Coal Mine Spoils. Nature 217, 768–769 (1968). https://doi.org/10.1038/217768a0
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DOI: https://doi.org/10.1038/217768a0
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