A comparison of metal tolerant and non-tolerant varieties of Festuca rubra for use in the direct hydraulic seeding of metalliferous fluorspar mine tailings.

D. R. Morrey, M. S. Johnson, J. A. Cooke

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Both red fescue cultivars germinated satisfactorily, although the laboratory experiment suggested restricted root development in the non-tolerant cultivar. Both experiments, however, showed that the overall shoot growth and cover of the non-tolerant cultivar were not affected. In fact, in the field experiment the non-tolerant cultivar performed better than the metal tolerant cultivar and showed no pathological symptoms of metal toxicity after 12 months. The advantages of using wood pulp as a mulch were clearly demonstrated. Application of an alginate stabilizer had no benefit. Use of carefully selected non-tolerant cultivars in the revegetation of such calcareous metalliferous wastes is possible, even where the Zn content is as high as 1%. -from Authors

Original languageEnglish
Pages (from-to)99-105
Number of pages7
JournalJournal of Environmental Management
Volume19
Issue number2
Publication statusPublished - Jan 1 1984

Fingerprint

Fluorspar
Tailings
fluorite
seeding
tailings
cultivar
Hydraulics
hydraulics
metal
Metals
Revegetation
Experiments
Alginate
Pulp
Toxicity
Wood
alginate
shoot growth
mulch
revegetation

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

Cite this

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AU - Cooke, J. A.

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AB - Both red fescue cultivars germinated satisfactorily, although the laboratory experiment suggested restricted root development in the non-tolerant cultivar. Both experiments, however, showed that the overall shoot growth and cover of the non-tolerant cultivar were not affected. In fact, in the field experiment the non-tolerant cultivar performed better than the metal tolerant cultivar and showed no pathological symptoms of metal toxicity after 12 months. The advantages of using wood pulp as a mulch were clearly demonstrated. Application of an alginate stabilizer had no benefit. Use of carefully selected non-tolerant cultivars in the revegetation of such calcareous metalliferous wastes is possible, even where the Zn content is as high as 1%. -from Authors

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