Cash flow key

Dr Ian Braithwaite has the rapt attention of students in his makeshift classroom (from left) Montana Spurdle from Rangeview Station, NQ Dry Tropics Grazing Field Officer Sam Skeat and Three Creeks Farm grazier Elisabeth Poole. Published details Profitability dominates...

Time to look back

Busy year, now let it rainAS the year draws to a close, we are all looking for relief from the atrocious weather conditions that we’re currently experiencing. Fingers crossed we get some moisture before too much longer.On the upside, the dry conditions have been ideal...

Exciting M&E

Monitoring and evaluation is critical to the LDC project The LDC Monitoring and Evaluation Strategy has been developed to help keep track of milestones and monitor progress towards pre-defined project outcomes.  Funding for the monitoring and evaluation of the project...

Normanby cluster works

This is a creep feeder station for calves being trialed at Sutherland. Creep feeding is a simple management practice allowing calves unrestricted access to additional feed while the cow is still suckling the calf. Calves gain access to the feed supplement through a...

Herd nutrition plan

Jim Wade makes a point during the Herd Nutrition workshop. Get nutrition right for best beef production THE proper nutrition of beef cattle is a key component of a successful production system. Feed usually accounts for the single largest input cost associated with...

Mt Wickham phase 2

Five rock chutes have been constructed in the treatment gully as part of phase two of the Mt Wickham gully remediation project. The chutes have been designed to intercept flows and reduce flow rate. Phase two Mt Wickham work complete GULLY remediation phase two at Mt...
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.