Mine Rehabilitation Handbook - Mining and Blasting
Mine Rehabilitation Handbook - Mining and Blasting
Mine Rehabilitation Handbook - Mining and Blasting
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Anions X X Sulfate is an essential plant nutrient, chloride<br />
indicates buffering capacity at specific pH<br />
<strong>and</strong> also possible salt toxicity<br />
Cations X X Indicates availability of plants nutrients also<br />
(NA, K, Ca, Mg, Al, S, A, R) essential for<br />
saline soils. Al potential toxin at low pH<br />
Electrical conductivity (EC) X X X Indicates soluble salt status<br />
pH X X X Need to identify extreme ranges for<br />
treatment or selection of plant species. Also<br />
indicates likely availability & behaviour of<br />
plant nutrients with pH changes<br />
97<br />
Dispersion Index X X X Indicates Stability & erodibility<br />
Particle size analysis X X X Indicates stability & erodibility<br />
Classification (structure texture etc) X Allows existing data & experience on<br />
managing similar soils elsewhere to be<br />
applied<br />
Soil Overburden Tailings etc Comment<br />
TESTS MEDIUM<br />
8.4 Appendix 4 – Soil Tests<br />
Selected Tests for Soil, Overburden <strong>and</strong> Other Rooting Media*<br />
* Test <strong>and</strong> analysis will vary from site to site. In some cases, tests not listed above will be essential. Where topsoil is available <strong>and</strong> classifiable,<br />
existing information may enable adequate management. In general the more site specific the material being revegetated, the greater the need to<br />
determine the physical <strong>and</strong> chemical characteristics.<br />
Nitrogen X X X Indicates levels of nitrogenous fertiliser<br />
applications required <strong>and</strong>/or mix of plant<br />
species desirable<br />
Total Sulfur X X Important where acid forming potential exists<br />
98<br />
Lime Requirement X X X On low pH material only. Indicates amount of<br />
lime required to raise pH.<br />
Phosphorus X X X Important if non native species necessary for<br />
post mining l<strong>and</strong>use or where topsoil is poor<br />
or is not available.<br />
Minor Elements X X X Important as elements for plant growth (in<br />
soils) (Cu, Zn, Pb, Mn, Co, Mo, B, A) or as<br />
potential toxins in overburden or tailings etc.<br />
Soil Overburden Tailings etc Comment<br />
TESTS MEDIUM