Tristan a new LDC face around the BBB

We welcome Tristan Gibson (pictured) to the team.

He is based in the Bowen office. 

Tristan is from the bush, he grew up in the border town of Goondiwindi on the family cattle property with three brothers and sister, before heading to Gatton to study a Bachelor of Agricultural Science with Honours at the University of Queensland. 

He then moved to Bowen in mid-2020 to pursue a career in the horticultural sector. The itch to return to work in the grazing industry was growing so when he saw this job advertised, he jumped at the chance and applied.

Some of you may have seen Tristan around the ridges, he’s heavily involved in the Bowen rugby club. He’s a sports fanatic, and also loves to to spend his free time pursuing outdoors activities like camping, fishing and bush walking. 

Tristan’s loving all that the Bowen and Collinsville region offers and is keen to get stuck in and work with the region’s landholders.

“Growing up on my parents cattle property I’ve always had a passion and connection to the cattle industry,” he said.

“I’m  interested in furthering my understanding of the different grazing systems and how these can be improved to increase profitability and land condition.

“I’m particularly looking forward to getting out and meeting the landholders that make up the Burdekin Dry Tropics region, and continuing the strong working relationships NQ Dry Tropics has with landholders and their communities”. 

Welcome aboard mate!

 

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

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