Reclamation of Coal Wastes with Reduced Soil Depth and Other Amendments
Journal American Society of Mining and Reclamation
Current regulations require the establishment of e permanent, self-sustaining vegetative community on coal refuse materials. The development of reclamation practices suitable for establishing vegetation directly on coal wastes is complicated by a number of f,actors. Chief among these characteristics are extreD1es in soil pH, high potential acidity, low water retention and high surface tettperatures. Practices designed to address each of these troublesome characteristics ~ere used in a field
... used in a field study. The addition of straw. mulch and/or a thin soil cover in combination with lime and ferti1izer was tested over three growing seasons. While soil cover treatments produced highest dry matter yield in the first year; straw mulch treatments produced comparable yields in the second year. Both mulch and soil treatments maintained vegetative cover for 3 growing seasons. Physical and chemical changes were observed in coal wastes which suggest that the formation of a "refuse soil II could occur in short period.