Borrow a level | Landholders Driving Change

Borrow a state-of-the-art laser level to make design easier

THE LDC project  has a state-of-the-art laser level to help landholders plan and design surface water management structures.

Managing the flow of water is integral to minimising erosion and enhancing grazing land management, and the laser level will help achieve that.

The laser is an Extreme A3 Mk II Rotary model (pictured).

The manufacturers claim millimetre accuracy at 30m and it has a range of up to 800m.

It can be operated remotely, recharged from a vehicle cigarette lighter point, and tilted to provide automatic grade control (9 degrees either way).

The level can be used by landholders to help them design fencing, gully rehabilitation work, earthworks and surface water management tools.

The LDC team at the Bowen office also has a dumpy level suitable for basic jobs.

Contact a member of the Bowen-based team to arrange to borrow either of the levels.

Rodger Walker

Rodger Walker

Land Management Support Co-ordinator

0408 828 276

 

Brendan Smith

Brendan Smith

Senior Grazing Support Officer

 

0417 408 587

Adrienne Hall

Adrienne Hall

Senior Grazing Support Officer

 

0428 158 859

Matt Miles

Matt Miles

Landscape Remediation Officer

 

0401 552 992

Lisa Hutchinson

Lisa Hutchinson

Senior Project Officer

 

 

0427 594 192

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KEQ #1

Figure 1. Total fine sediment reduction by project type and erosion source. Inset shows the proportion of the total project area for each project type.

These estimates have been calculated using two methods: 

1) The pollutant reduction component of the Alluvium/Great Barrier Reef Foundation (GBRF) investment tool for hillslope and streambank erosion management projects; 

2) The Reef Trust Gully Toolbox method for gully erosion management projects. The LDC Water Quality Report 2020 (Waterhouse et al., 2020) highlights that a number of assumptions underlay these calculations, therefore these figures should be treated as the best available estimate of sediment reductions to date.

Preventing sediment from reaching the Great Barrier Reef

Each wet season sediment is washed into local waterways and out to the Great Barrier Reef (GBR). 

Most sediment is very fine, and can stay suspended for a long time and can travel great distances. Valuable topsoil is lost from production, and increased concentrations on the reef can be harmful to seagrasses and corals. 

Landholders in the BBB have completed 69 on-ground water quality practice changes, and it is estimated that these have contributed a fine sediment reduction of 6,154 tonnes per year from reaching the GBR. 

Of this, approximately half of the sediment savings are attributable to grazing land management changes on hillslopes and streambanks, and the other half as a result of gully remediation treatments across a broad range of scales, as shown in the graphs above. 

The table below also highlights the relatively small area of intervention in the gully management projects compared to the large sediment savings that these can achieve - 60 per cent of the sediment savings over only 4 per cent of the project area.

Table 1. Estimated sediment reductions (tonnes) from projects completed in the LDC Project to date.

KEQ #2

*GLMWW = Grazing Land Management Wire and Water

KEQ #3

*The Exploring New Incentives activity area has provided an opportunity for graziers to adopt improved land management practices through a range of activities. For some of these properties, it was the first time they signed contracts for on-ground works.

KEQ #4

The LDC project monitors four gully sites (represented in this table) with gold standard equipment and analysis, carried out by CSIRO.

Results have been compiled in a preliminary report from Bartley et al (2020), with the final report expected to be released by the end of 2020. The preliminary report shows all four sites have indicators of improvements, notably the Strathbogie and Mt Wickham sites.

KEQ #5

KEQ #6

KEQ #7
KEQ #8

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Reef regulations - grazing, standard conditions

  1. For land in good or fair condition (more than 50 per cent ground cover at 30 September), continue using measures to maintain land condition.
  2. For land in poor condition (less than 50 per cent ground cover at 30 September), steps must be taken to improve land condition.
  3. For land in degraded condition (less than 20 per cent ground cover at 30 September), steps must be taken to improve land condition OR prevent areas from further degrading or expanding.
  4. Keep records of measures taken and also of agricultural chemicals, fertiliser and mill mud or mill ash applied to land.
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