The Digital Farmer

The Digital Farmer – workshop on software The LDC Grazier Support program supports graziers by hosting a wide range of workshops that focus on business planning.  Farm management software and mapping workshops are proving popular. Whole of farm management...

Feral pig control

Council’s feral pig control program is on track The Whitsunday Regional Council’s 2018/19 feral pig aerial control program is on course to eclipse the previous year’s tally.  The LDC project matches landholders’ contributions towards the cost of the aerial...

Gully symposium

International Gully Symposium The 8th International Symposium on Gully Erosion (ISGE) is being held in Townsville on 21-27 July – the first ISGE in the southern hemisphere.  NQ Dry Tropics is involved. Symposium program Themes: Gully erosion processes and...

Leadership Program

Leadership program a great opportunity Do you want to be part of the future of your region?  Do you want to work with your community to plan your future? A leadership program has been developed specifically for graziers in the Bowen Broken Bogie catchment.  Register...

Demo sites

Demonstration sites would be a ‘one-stop shop’ LDC wants to establish two ‘whole of enterprise’ demonstration sites to ground truth a wide range of management and landscape remediation techniques. There is a long list of benefits for graziers who allow...

Mackay Grazing Forum

Grazing Forum hosted in Mackay Reef Catchments is once again hosting a Grazing Forum in Mackay. Guest speakers at the 28 March forum include Charles Massey, author of Call of the Reed Warbler, and David McLean, RCS Chairman. The LDC project is offering a complimentary...
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

 

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.