HVO 2009 Annual Environmental Management Report - Final
HVO 2009 Annual Environmental Management Report - Final
HVO 2009 Annual Environmental Management Report - Final
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Coal & Allied – Hunter Valley Operations<br />
5.2.9 Vegetation Species and Establishment<br />
Pasture and tree species may be sown either into topsoil or directly into spoil emplacements without topsoil,<br />
generally in Spring or Autumn (depending on rainfall). Pasture seed is mixed with fertiliser and spread from a<br />
tractor-mounted broadcaster working along contours where possible for uniform seed distribution. Tree seed<br />
is generally mixed with kitty litter and spread from a tractor-mounted broadcaster and may use a cover crop of<br />
oats or millet.<br />
The selected final land use is:<br />
<br />
<br />
Class IV land capability;<br />
Pastures – mainly cattle grazing, with a mixture of sown pastures and tree belts.<br />
<br />
Native woodland tree areas – using local tree seed when available.<br />
Class I and II land capability;<br />
<br />
<br />
Irrigated lucerne production required to demonstrate compliance of the Alluvial Lands Re-instatement<br />
Area.<br />
The land use is compatible with the surrounding landscape and equivalent to pre-mining land use.<br />
Current rehabilitation practices aim for a landscape with improved grazing capability and approximately 60 to<br />
70 per cent of the area sown to either improved or native pastures. The remainder of the rehabilitation is sown<br />
to native tree species. Areas that were rehabilitated during the reporting period were planted with a variety of<br />
grass and tree species. Areas that were rehabilitated during the reporting period were planted with a variety of<br />
grasses and tree species. Local native grass, shrub and tree species are mostly used in the sowing and<br />
planting of rehabilitated areas, but exotic pasture species are also used. All of the sites rehabilitated during<br />
the reporting period have been planted into available topsoil.<br />
Pasture and tree species listed in Table 61 and Table 62 have previously been successfully used for<br />
rehabilitation. These pasture species are generally used for initial re-vegetation and are sown at an<br />
application rate of approximately 45 to 50 kilograms (total seed mix) per hectare. Pioneer Rhodes Grass has<br />
been removed from the pasture mix due to its tendency to dominate pasture areas. The diversity of the<br />
tree/shrub seed mix has been increased in <strong>2009</strong> and non-native species have been removed i.e. Eucalyptus<br />
cladocalyx (Sugar gum).<br />
AEMR <strong>2009</strong> 177