Revegetation of mine wastes at Mt. Isa, Queensland. I. The nature of the material and defining the problems

Hunter G.D. and Whiteman P.C. (1975) Revegetation of mine wastes at Mt. Isa, Queensland. I. The nature of the material and defining the problems. Australian Journal of Experimental Agriculture, 15 75: 513-518. doi:10.1071/EA9750513


Author Hunter G.D.
Whiteman P.C.
Title Revegetation of mine wastes at Mt. Isa, Queensland. I. The nature of the material and defining the problems
Journal name Australian Journal of Experimental Agriculture   Check publisher's open access policy
ISSN 0816-1089
Publication date 1975-01-01
Sub-type Article (original research)
DOI 10.1071/EA9750513
Volume 15
Issue 75
Start page 513
End page 518
Total pages 6
Subject 1100 Agricultural and Biological Sciences
Abstract Of chemical and physical analyses in the laboratory and field were undertaken on the fine crushed rock material disposed of after ore extraction as large flat tailings dams, The aim was to define those factors limiting plant growth. Analysis showed that available phosphorus was extremely low. Nitrogen levels were also low. pH was approximately neutral between 6.7 and 7.6, due to the high levels of dolomite. Soluble salts, particularly NaCI, MgSO4 and CaSO4 were high, leading to high values of conductivity, up to 0.052 m Sm-1. The particle size distribution was dominated by fine fractions. In the field high bulk density values up to 1.57 g cm-3, combined with strong surface crusting lead to low values of infiltration. Thus high salt levels are not readily leached. These factors as limitations to plant growth are discussed.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 30 Aug 2016, 13:57:01 EST by System User