Characteristics and Reclamation of “Acid Sulfate” Mine Spoils1
- R. I. Barnhisel,
- J. L. Powell,
- G. W. Akin and
- M. W. Ebelhar2
Several factors have been identified, any one of which may seriously limit the establishment of vegetative cover on acid sulfate coal mine spoils. The addition of liming agents such as calcium carbonate as required by sample testing will reduce the acidity, but spoils in which large amounts of lime are required often have other factors limiting plant growth. Acid sulfate coal mine spoils frequently tend to have very low levels of available phosphorus, occasionally low levels of potassium, and these spoils are usually droughty.
Several experiments have been established in Kentucky to learn which successful combinations of soil fertility amendments and which soil test for lime requirement (i.e., pH, buffer, or total acidity) may be best used in reclamation practices on acid sulfate coal mine spoils. Success in revegetation of these spoils was achieved with the addition(s) of lime and plant nutrients in combination with appropriate steps to reduce runoff by providing a rough micro-relief and with the selection of adapted species and/or varieties.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1982. . Copyright 1982 by the Soil Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA