Arbon - Tooligie - Human Induced Regeneration

Arbon - Tooligie - Human Induced Regeneration is a Human-Induced Regeneration project located on the Eyre Peninsula in South Australia, approximately 84km north of Port Lincoln near the small town of Tooligie. It was registered in December 2013 and covers an area of 6,211.72 hectares.

Human-Induced Regeneration (HIR) projects involve establishing permanent native forests by allowing previously cleared or degraded vegetation to regrow through the cessation of activities that suppress regrowth, such as managing grazing and feral animals. This specific project establishes permanent native forests through assisted regeneration from in-situ seed sources (including rootstock and lignotubers) on land that was cleared of vegetation and where regrowth was suppressed for at least 10 years prior to the project commencing.

The Eyre Peninsula region is known for extensive agricultural land use, predominantly dryland cropping and sheep grazing. The environment is considered semi-arid with low and variable seasonal rainfall, receiving roughly 400mm annually. Soils in this region are typically Calcarosols, which are generally well-drained, alkaline sandy loams that can be particularly prone to wind erosion.

The project originally belonged to Andrew and Debra Arbon before the proponent was varied to Terra Carbon Pty Limited in 2015, an entity associated with the major carbon project developer GreenCollar. The project area has seen multiple variations over its lifetime, with land amendments occurring in 2014, 2015, and 2025. Notably, media analysis of the ACCU scheme in 2023 highlighted this project as a positive outlier in the region where forest cover had demonstrably increased, resulting in the issuance of over 148,000 Australian Carbon Credit Units (ACCUs).