Sustainable phytostabilisation of mine tailings – a critical analysis of system requirements and approaches

Huang, L., Baumgartl, T., Edraki, M. and Mulligan, D. (2012). Sustainable phytostabilisation of mine tailings – a critical analysis of system requirements and approaches. In: Life-of-Mine 2012: Conference Proceedings. Life of Mine Conference (AusIMM), Brisbane, Australia, (105-113). 10-12 July 2012.

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Name Description MIMEType Size Downloads
Author Huang, L.
Baumgartl, T.
Edraki, M.
Mulligan, D.
Title of paper Sustainable phytostabilisation of mine tailings – a critical analysis of system requirements and approaches
Conference name Life of Mine Conference (AusIMM)
Conference location Brisbane, Australia
Conference dates 10-12 July 2012
Proceedings title Life-of-Mine 2012: Conference Proceedings
Place of Publication Carlton North, VIC, Australia
Publisher The Australasian Institute of Mining and Metallurgy (AusIMM)
Publication Year 2012
Sub-type Fully published paper
ISBN 9781921522666
Start page 105
End page 113
Total pages 9
Collection year 2013
Language eng
Formatted Abstract/Summary
Phytostabilisation with tolerant plant species has been advocated as a cost-effective solution for sustainable cover of tailings from metal mines and bauxite refinery. The development of sustainable plant ecosystems on such wastes requires not only tolerant plant species compatible with local climatic conditions, but also the formation of stable and functional root zones through systematic processes to develop functional soil matrix and horizons (eg A-B-C). However, the process requirements for reconstructing functional root zones in tailings are poorly understood. Based on a review of current literature and industry experience in tailings revegetation, the present paper conceptualises three key phases in the process of root zone development in amended tailings:
1. hydro-geochemical stabilisation resulting from the interactions among tailings characteristics, amendment measures and local climatic conditions
2. the rehabilitation of soil biological capacity
3. the establishment of ecological (carbon and nutrient) linkages between the rehabilitated root zones and the above ground plant communities.
Key research is required on:
• the relationship between hydro-geochemical stability and mineralogy and geochemistry of tailings, in response to rehabilitation treatments under local climatic conditions
• the relationship between soil biological capacity and hydro-geochemical stability in the root zone
• the transition of soil microbial communities specific to exogenous organic matters into those required for mineralising litters of in situ plant communities.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Conference theme 'Maximising Rehabilitation Outcomes'

 
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Created: Thu, 13 Dec 2012, 23:14:52 EST by Thomas Baumgartl on behalf of Centre For Mined Land Rehabilitation