Review of Grassland Management in south-eastern ... - Parks Victoria
Review of Grassland Management in south-eastern ... - Parks Victoria
Review of Grassland Management in south-eastern ... - Parks Victoria
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<strong>Parks</strong> <strong>Victoria</strong> Technical Series No. 39<br />
<strong>Grassland</strong> <strong>Management</strong> <strong>in</strong> SE Australia<br />
1 INTRODUCTION<br />
This review aims to assist <strong>Parks</strong> <strong>Victoria</strong> <strong>in</strong> keep<strong>in</strong>g abreast <strong>of</strong> current knowledge on the<br />
management <strong>of</strong> lowland grassy ecosystems. The <strong>in</strong>formation that is conta<strong>in</strong>ed <strong>in</strong> this review<br />
is seen as the most up-to-date <strong>in</strong>terpretation <strong>of</strong> the literature. With new and excit<strong>in</strong>g <strong>in</strong>sights<br />
<strong>in</strong>to the management and restoration <strong>of</strong> grassy ecosystems occurr<strong>in</strong>g, this is an area that<br />
should be at the forefront <strong>of</strong> <strong>Parks</strong> implementation <strong>of</strong> adaptive management regimes. An<br />
example <strong>of</strong> this is the recent research <strong>in</strong>to the differences between slash<strong>in</strong>g and graz<strong>in</strong>g a<br />
previously grazed grassy ecosystem <strong>in</strong> Tasmania, see Verrier & Kirkpatrick (2005). The<br />
scientific rigor <strong>of</strong> the <strong>in</strong>vestigation is poor, as it lacks <strong>in</strong>formation on stock<strong>in</strong>g rates, soil types<br />
and even slash height. However, the outcomes <strong>of</strong> the practice are astound<strong>in</strong>g and show how<br />
management and research can assist <strong>in</strong> enhanc<strong>in</strong>g management.<br />
The areas that this review aims to cover are the lowland grassy ecosystems or those that are<br />
dom<strong>in</strong>ated by tussock form<strong>in</strong>g grasses, have less than 10% tree or shrub cover, and are<br />
below 200 m above sea level (Figure 1).<br />
Figure 1. Estimated extent <strong>of</strong> lowland grassy ecosystems at the time <strong>of</strong> European settlement (black).<br />
The current distribution <strong>of</strong> ‘natural’ lowland grassy ecosystems is estimated to be less than 0.5% <strong>of</strong><br />
this area. Mapp<strong>in</strong>g <strong>in</strong>formation was obta<strong>in</strong>ed from Geosciences Australia’s database us<strong>in</strong>g tree, shrub<br />
and grass cover to estimate distribution <strong>of</strong> vegetation types.<br />
1