Tambua Regeneration Project

The Tambua Regeneration Project is a Human-Induced Regeneration (HIR) project located at Tambua Station, approximately 55km west of Cobar in the Orana region of New South Wales. Registered in August 2015, the project covers a massive area of 57,460 hectares. The region is situated within the Cobar Peneplain, an area characterized by rolling hills, flat plains, and stony ridges, historically utilized for grazing sheep and cattle.

Human-Induced Regeneration projects involve the regeneration of native forests on land where vegetation growth has been suppressed for at least 10 years, typically by agricultural activities. Unlike environmental planting, this methodology relies on assisted regeneration from in-situ seed sources, such as rootstock and lignotubers. To achieve this, the project proponent manages "suppressors" that prevent regrowth; in this specific case, the project activities focus on the humane management of feral animals, alongside the management of livestock grazing pressure to allow native vegetation to recover.

The environment in the Cobar Shire is classified as semi-arid, with an average annual rainfall of approximately 390mm. The soils are predominantly red earths and skeletal soils found on ridges, supporting vegetation types such as Mulga and Poplar Box woodlands. The property itself has a long history of pastoral use; the Evans family has held Tambua Station since 1914, operating Poll Merino and Brahman cattle studs. The project has also been identified as a source of carbon offsets for major corporate entities, including Woodside Energy.