LCAT training

Rob Hassett from the Department of Agriculture and Fisheries developed the Land Condition Assessment Tool (LCAT) used by NQ Dry Tropics so who better to lead our team in training to develop their assessing skills. These pictures were taken when Rob took NQ Dry Tropics...

Dartmoor rehydration

Diversion banks stop erosion, increase infiltration Diversion banks constructed above the head of a gully has halted the progress of the gully head. Water is now being held in the landscape by the banks, instead of running into the gully system improving water...


Bob got more grass with rotational grazing LDC project panel member Bob Harris has worked hard over the past 10 years to get more from his land with the right grazing system. We spoke to him about what he has achieved. Brought up on a dairy in Victoria, Bob Harris...

DoR soil surveys

Government soil survey results The Department of Resources travelled to Collinsville in March to present an overview of the 2021 soil surveys that were conducted across the BBB. The Department of Resources has collected soil samples across the BBB to help assess and...

Animal health

Grazier focus on animal health to improve productivity Bowen and Collinsville graziers had the opportunity to meet with a local veterinarian and DAF staff to discuss the latest knowledge in animal health at a workshop held in Bowen in March. More than 70 graziers,...

Gully days

Gully field days show landholderswhat’s involved in remediation Department of Agriculture and Forestry Principal Extension Officer Bob Shepherd explains some of the principles of gully remediation. Griffith University Associate Professor Andrew Brooks. LDC has...


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.
KEQ #8

KEQ #7
KEQ #6

KEQ #5

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 #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 #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