Wab water Management Plan
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Visual Assessment & Rehabilitation Management Plan Proposed Landform Raising – Lot 901 South Western Highway, Whitby 10 October 2012 WA Limestone Page 6 3.4 Local species proposed to be used in rehabilitation Species from the following list are proposed to be established through direct seeding and/or hardened tube plants. Species Key Notes Acacia saligna LS#W rapid screening/short life Allocasuarina fraseriana TL# Callistemon phoeniceus aW Calothamnus quadrifidus S#a Calothamnus rupestris Sa Calothamnus sanguineus Sa Eucalyptus accedens T slow but good in hard clay sites Eucalyptus calophylla TS Eucalyptus laeliae T Eucalyptus megacarpa TS Eucalyptus patens TS Eucalyptus rudis TSW can be affected by insects Eucalyptus wandoo T slow but good in hard clay sites Hakea lissocarpha a Hakea petiolaris a Hakea trifurcata a Leptospermum erubescens a Melaleuca preissiana TSW Melaleuca radula a Melaleuca scabra a Paraserianthes lophantha LS#a short life, rapid screening Taxandria linearifolia Wa Viminaria juncea LS#W W Suitable for wet sites T Tree Local trees are limited in species number A Shrub L Legume or nitrogen fixing S Best species for providing rapid screening cover # Suitable for seeding and normally introduced from seed SJS TRIM - IN12/17340 OCM122.9/01/13 Visual Assessment & Rehabilitation Management Plan Proposed Landform Raising – Lot 901 South Western Highway, Whitby 10 October 2012 WA Limestone Page 7 3.5 Fauna Management There are kangaroos currently utilising the site and there will also be a range of small fauna such as reptiles, amphibians, mammals and birds. The most common small mammals are likely to be bandicoots and possums, which are now increasing in numbers along the Darling Scarp because of the reduction in fox numbers through baiting and the introduction of better habitats. Minimal changes to fauna numbers are expected as a result of the land raising and rehabilitation of the site. 3.6 Weed Management The management of weeds is essentially similar to that for plant diseases. The impact of weeds is really the impact within the local area and the more they are controlled the better. It is desirable that the site does not become a haven for environmental weeds and therefore a management and control program is warranted at the site. Weeds can be declared under the Agriculture and Related Resources Protection Act 1976 which requires that Declared Weeds are eradicated. Other weeds are not Declared but may be classified as Environmental Weeds because they are well known for impacting on vegetation. Generally if the actions taken for plant pathogens are applied they will also control weeds. This overburden spreading project is an ancillary activity to WA Bluemetal’s quarry. The same environmental management procedures and practices are proposed to be applied to this project as are currently approved for the quarry. As a general rule the following principles should be used when undertaking weed management. 3.6.1 Weed Management Principles • Dieback procedures should be used in conjunction with weed management. • Material won from the topsoil stripping should not be placed in an area of higher vegetation quality. • All vehicles and equipment to be used during land clearing or land reinstatement are to be clean and free from soil or plant material when arriving at a site. • No soil and vegetation is brought to the site apart from that to be used in rehabilitation. • Plants to be used in rehabilitation should be free from weeds. Plants are only to be sourced from suitable nurseries. • Vehicles should stay on defined access roads and firebreaks wherever possible. 3.7 Fire breaks The landform raising is taking place in an open paddock therefore no firebreak construction or maintenance will be required, with all existing firebreaks for the property being retained. Tree planting in the area will be for screening purposes only, so access across the site for emergency vehicles can be maintained at all times. SJS TRIM - IN12/17340 OCM122.9/01/13 Visual Assessment & Rehabilitation Management Plan Proposed Landform Raising – Lot 901 South Western Highway, Whitby 10 October 2012 WA Limestone Page 8 3.8 Dieback Management Visual examination suggests that there are no obvious signs of dieback on site. There are no indicator species and no obvious species showing deaths. The site would therefore most likely be uninterpretable with respect to dieback and therefore a dieback survey is not warranted. Instead practices should be used which minimise the spread of weeds and plant pathogens if and when they occur. In many ways the same principles used in weed management also apply to dieback management. The aim will be to minimise the spread or introduction of dieback Phytophthora spp. or other diseases during the project earthworks. As a general rule the following principles should be used when undertaking dieback management. 3.8.1 Dieback Management Principles • Dieback management procedures should be used in conjunction with weed management. • Dieback diseases are more likely to be transported under moist clay soil conditions. • All vehicles and equipment to be used during land clearing or land reinstatement are to be clean and free from soil or plant material when arriving at a site. • Plants for re-vegetation are only sourced from suitable nurseries. • Vehicles should stay on defined access roads and firebreaks wherever possible. • Drainage from access roads and firebreaks is to be directed off the road/firebreak by a sequence of small drains to minimise large areas of wet soils. • When clearing land or firebreaks vehicles work from dieback free areas, or areas of better vegetation towards dieback identified or areas of lower quality vegetation. SJS TRIM - IN12/17340 OCM122.9/01/13 Yüklə 20,11 Mb. 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