Dungarvan Human-Induced Regeneration Project

Dungarvan Human-Induced Regeneration Project is a Human-Induced Regeneration (HIR) project located at Dungarvan Station in Yantabulla, approximately 150km northwest of Bourke in far-western New South Wales. It was registered in July 2015 and covers an area of 25,571.19 ha.

Human-Induced Regeneration projects involve the regeneration of permanent even-aged native forests on land where vegetation was previously cleared and regrowth suppressed for at least 10 years. The methodology requires land managers to cease suppressive activities to allow native trees to naturally regenerate from in-situ seed sources (such as rootstock and lignotubers) and eventually achieve forest cover.

The far-western Bourke region is historically known for extensive pastoral operations, predominantly sheep and cattle grazing. The area experiences a semi-arid climate characterised by low, variable rainfall. The local environment and soils generally consist of soft red loams, sandy rises, and clay within Gilgai areas, which naturally support vegetation such as Mulga, Rosewood, Cypress Pine, and Box woodlands.

This project's core activities focus on the careful management of the timing and extent of livestock grazing, as well as the humane management of feral animals including pigs, goats, foxes, cats, and wild dogs. To facilitate these changes, substantial infrastructure upgrades have been implemented across the property, including the installation of 135km of fencing, the construction of 10 trap yards, and the creation of 13 new water points. These improvements drastically reduce total grazing pressure and introduce periods of true rest, allowing native flora to regenerate.

An interesting note about this project is its successful integration with a commercial livestock enterprise operated by the Leigo family, who have owned Dungarvan since 1967. Partnering with project proponent Terra Carbon (GreenCollar), the Leigos found that regenerative practices leveled out the boom-bust cycle of agriculture by providing vital drought resilience and diversified revenue. Furthermore, a recent CSIRO biodiversity report observed a notable increase in native birds, reptiles, and mammals flourishing across the property, including rare sightings of fat-tailed dunnarts.