Research

Matthew Harrison's presentation covers a range of issues relating to soil carbon markets, from changes in soil carbon over time to whether we should rethink soil carbon markets, beginning with the key question: why all the hype about soil carbon?

Researcher Jacqui Kennedy knows how to save photos and history. She helped Coraki Museum, Ballina Library and Ballina Naval Museum digitise their photos collections … a visit to Ray Hunt’s home at Tuckurimba two years ago led Jacqui to some astounding photos.

The critique of our study of fire history in southwestern forests illustrates the difficulty of discussion around such emotive issues. We reported that according to Departmental records, bushfires were seven times more likely in areas of forest that still had the dense understorey that had been germinated by prescribed burns than they were in other areas where the understorey had self-thinned because it had been left alone. These are the facts, but they leave us at an impasse.

A two-part ABARES Insights series on Australian agriculture draws attention to how changes in the sector over past decades have led to its current success and what will shape its future performance. ABARES Executive Director Dr Jared Greenville said farmers have made the most of exceptional growing seasons and high global prices to achieve unprecedented industry production and export values over the last three years.

Flinders Shire Council in North Queensland has announced it has signed a Memorandum of Understanding with Frontier Impact Group to investigate a project to harvest and convert woody weeds into renewable fuel and other valuable byproducts. Flinders Shire CEO, Mr Hari Boppudi said he was thrilled that Flinders Shire Council had signed the MOU to conduct a feasibility study on such an innovative project because landholders across the region had struggled with millions of hectares of good grazing land infested with woody weeds, such as Chinee Apple, Prickly Acacia, and Leucaena.

They’re the creepy crawlies with a voracious appetite, so when it comes to food waste, black soldier fly larvae are nature’s number one composters. Now, these wriggly grubs are helping South Australia’s food bowl stay clean and green as part of a sustainable food initiative from Mobius Farms.

An independent review of an Australian National University (ANU) report advocating for the closure of native forest harvesting in southern NSW, has confirmed the report is deeply flawed ... SETA secretary, Peter Rutherford stated “the flaws identified in the report totally undermine the alleged economic benefits of closing the native forest industry in southern NSW. Rather than a net present value (NPV) of $61.96 million over 30 years, closure of the industry would result in a negative NPV of -$252.43 million.”

A team led by University of South Australia researchers has pioneered a new soil remediation technique that is significantly faster, simpler, safer, and more cost-effective than currently available method … a new remediation technique that uses a super-efficient solar evaporation surface to draw water from the soil through a sponge-like filter that traps contaminants, mimicking the process of transpiration that occurs in natural plants, but at a greatly accelerated rate.

Australian Rural & Regional News sought an update on koala monitoring from NSW DPI Principal Research Scientist, Dr Brad Law ... Key points from DPI Forest Science research include: New acoustic survey methods have demonstrated koalas occur more commonly throughout the north-east hinterland forests than previously appreciated ... Annual monitoring of koala occurrence in hinterland forests since 2015 has found a stable trend over time at a regional level. Trend data are generally not available from other regions ... A parallel study found that regulated timber harvesting had no significant impact on koala density ...

The Sunshine Coast citizen science program is growing, and council is calling on our community for their ideas. Citizen science is when people volunteer their time to partner with researchers to increase scientific knowledge and collect data about their natural environment.

Forestry Australia has welcomed a new study that highlights the significant value and benefits that state forests deliver for positive environmental, recreational, social and commercial outcomes. Assessing the net benefits of multiple use native forest management in Queensland found that state forests managed for multiple uses in South and Central Queensland delivered additional benefits and superior social outcomes over the long term when compared with benefits provided by national parks.

Construction has commenced on the Kimberley Conservation Hub, a world-class conservation centre at Charnley River–Artesian Range Wildlife Sanctuary in northern Australia ...the important infrastructure will act as a base for critical scientific research, fire management, feral animal control and other conservation projects across 4.3–6.1 million hectares across the Kimberley.

Chicken eggs have become inaccessible to Ukrainians. From January 2020 to October 2022, the average price of chicken eggs has increased 3 times! The price of 10 eggs increased from UAH 21.07 to UAH 60.1. Over the same time period, the average cost of food in Ukraine increased by 42.1 per cent. And the average salary increased by only 5 per cent.

Both researchers I referenced show regular low intensity burning, as practised by Aboriginal people across the landscape, has been lost and Dr Fletcher believes the loss of cool, mosaic burning since European settlement has left us, as a nation, dangerously fire prone. Philip Zylstra seems to have missed this critical point.

In his 24 October response on this issue, Zylstra states that in their study seven times more area of recently burnt forest was burnt than long unburnt forest. That is not in dispute. But was this because there were seven times the number of ignitions in these areas to start with because of chance or differences in area or because of some flammability factor? We simply do not know because this basic statistical requirement was not considered in the study.   Is the conclusion biased, by how much, and in what direction? Who knows?

I have recently re-read Think Trees, Grow Trees, a 1985 publication from the Institute of Foresters of Australia. This excellent little book was the brainchild of, and was edited by Dr Wilf Crane, one of my contemporaries at the Australian Forestry School, a notable forest scientist and famous and eccentric character ... To me, the most important part of the book (in terms of contemporary relevance) is the chapter called Living with Fire. It is written by Phil Cheney.

A proud Gamilaroi man who recently started his own native grains business is partnering with a research team from the University of Sydney to share knowledge, revitalise country and help grow the emerging native grains industry. Les Knox, who owns and operates Garaah Gundal, will this summer lead a harvest collaboration with local farmers as part of a project to modernise Indigenous native grain processing and produce flour from the region’s traditional grain varieties.

Kalyx Australia, a national agricultural business, announced it has completed its acquisition of Staphyt Research Limited’s New Zealand business; a move that sees the company grow its presence for the first time beyond Australian shores. For over two decades now, Kalyx has been leading independent agricultural research in Australia with their national presence and operational excellence.

The mapped fire histories of the southwestern forests show that bushfires have been most frequent in forests with dense understoreys promoted by previous burns, and far less common in areas that have not been burned for several decades, allowing the understorey to naturally thin. Two new voices have entered the discussion on this here and made numerous claims, but their ill-informed comments have distracted from the point.