| Range of VariablesThe Range of Variables explains the contexts within which the performance and knowledge requirements of this standard may be assessed. The scope of variables chosen in particular training and assessment requirements may depend on the work situations available |
Who may be referred to as a client? | Clients may include the enterprises management, or a private individual, company, community group, government agency or a combination of these entities. |
What preferences and contract requirements may clients have? | Project works will be described in the contract specification of works documents which identifies the clients requirements on how and when works will be carried out, identifies performance conditions and expected standards of work, lists timelines, and sets out schedules of proposed materials and their unit costs. |
What specific statutory obligations and site responsibilities may apply? | Statutory obligations require compliance with legislation, ordinances, regulations or by laws relating to the works or the work site such as prohibited plant species, restricted plant species, land use restrictions, processes and requirements for site development and work activities. Site responsibilities include OHS, industrial relations and equal opportunity and employment. |
What biophysical and other factors may affect the site to be revegetated? | Biophysical factors may include the location of the site, site boundaries, environmental considerations, access issues, potential hazards, utility services availability and locations, adjacent landholder considerations, security issues, aspect of the site, rainfall, humidity, wind and sunlight intensity, soil types, nutrients and deficiencies, slope, natural and artificial watercourses, outcrops and the presence of indigenous or otherwise native vegetation, exotic plant (weeds) and animal (feral) species. |
What environmental considerations may affect the work priorities? | This includes the sustainable use of materials, duty of care in conserving sites natural values, and involves work practices that will not pollute, damage or degrade the sites natural resources, biological processes and biodiversity. While site works involve disturbance and impacts, the use and movement of machinery, storage of materials, removal of weeds and movement of soil into, across and beyond the site, must be subject to control to avoid introduction or transfer of soil-borne plant or animal pathogens. |
What historical modifications may influence the plan for revegetation works? | Historical modifications may include human intervention such as clearance, earthworks, commercial grazing and cultivation practices, fire management, buildings and structures, natural events such as wildfire, flooding, drought, and the effects of modifications at environmentally linked sites. |
What OHS hazards may be identified as part of the planning for revegetation works? | Hazards may include disturbance or interruption of services, solar radiation, dust, noise, air and soil borne micro-organisms, chemicals and hazardous substances, sharp hand tools and equipment, manual handling, moving vehicles, machinery and machinery parts, slippery and uneven surfaces. |
What controls may be introduced to minimise the risk of OHS hazards? | Controls used should be in accordance with enterprise OHS policies and procedures and may include identifying hazards, assessing and reporting risks, cleaning, maintaining and storing tools, equipment and machinery, appropriate use of personal protective equipment including sun protection, safe operation of tools, equipment and machinery, safe handling, use and storage of chemicals and hazardous substances, correct manual handling, appropriate use of safety equipment such as signage and protective barriers, basic first aid available on site, personal hygiene, and reporting problems to supervisors. |
Why is forward planning required for plant availability? | The forward planning for supply of plants is critical to ensure that species are ready and mature for planting, and that they satisfy the planting works program. Seed resources may need to be collected well in advance before works commence or purchased from a reputable source. Nursery orders need to be organised to allow for propagation and hardening off. |
What tools and equipment may be required for the revegetation works? | Tools, equipment and machinery may include knives, trowels, spades, forks, rakes, hoes, shovels, buckets, brooms, wheelbarrows, hoses and hose fittings, tree-planters, secateurs or snips, and machinery such as tractors and 3-point linkage or trailed equipment, pesticide and fertiliser application machinery or backpacks. |
What revegetation procedures may be applied to this standard? | Revegetation procedures may include soil treatments including stabilising materials such as mesh, dead vegetative material, mulch and weed mats or conditioning additives to effect a change in the water holding capacity of the soil, pH, organic components, soil structure and texture, preparation of soil surfaces for revegetation works, installation of irrigation and/or drainage systems, planting methods such as hand sowing, direct seeding, tube planting, hand or machine assisted planting of seedlings, planting of divisions, transplanting and natural regeneration, fencing of stock and pest animals, the chemical, cultural or biological control of weeds and feral animals, protection of plants by staking, tying and guarding, and the retention of site debris. |
What environmental impacts may be associated with a revegetation works project? | Environmental impacts resulting from the development of a revegetation project will be predominantly beneficial to the surrounding environment.Beneficial impacts may include the extension of native corridors for the travel and breeding expansion of local native flora and fauna, improved uptake of water at the site, and reduction in the destructive effects of a rising watertable at the site or environmentally linked sites, increases in carbon fixing, long-term vegetation, and the stabilisation of existing native vegetation, soil and waterways with ground covers, understorey and top storey vegetation.Detrimental impacts may include nuisance level noise and emissions associated with large-scale earthworks and planting activities that may be required for the successful establishment of native vegetation at the site, and disturbance of existing native flora and fauna at the site during the implementation of the planned revegetation works. |
What may be considered when developing timelines for site establishment? | Ordering of materials, site protection and access, storage of materials, pre-treatment of site soils, weed management, and specific environmental amelioration. |
What may be included as the establishment period? | This is the period of time required by the contract to ensure that planting materials have successfully taken root and will continue to grow. This period can vary due to the size of plant materials, environmental conditions (such as soils, water supply, wind, sun exposure, season), and budget resources allocated. |
What is included under habitat resource development? | Habitat resources are the specific individual and integrated materials and food and water supply required to sustain insects and animals. These include adequate leaf litter, fallen logs or standing trunks for nest sites, leaving animal "highways" undisturbed, encouraging certain insect populations, nesting materials encouragement of fauna corridors, and territorial space.Habitat resource development may involve the introduction of natural or other materials to provide nesting places, promote food production, and to enhance micro and macro environmental conditions for species. |
What specifications for staged implementation may apply to this standard? | These may include gradual replacement of habitat, planting at different times, and provision of access for future works. |
| For more information on contexts, environmental implications and variables for training and assessment, refer to the Sector Booklet. |
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