Yarran Downs Warroo Human Induced Regeneration Project

Yarran Downs Warroo Human Induced Regeneration Project is a human-induced regeneration project located in the Balonne local government area, approximately 50km northeast of St George in Queensland. It was registered in September 2023 and initially covered an area of 8,354.93 ha, though a project area variation in February 2025 formally removed certain sections from the project's boundaries.

Human-induced regeneration (HIR) projects involve regenerating native forests by changing land management practices on properties where vegetation has been deliberately suppressed for at least 10 years. Standard requirements for this methodology dictate that the land must achieve native forest cover metrics (typically 20% crown cover and 2 metres in height) through assisted regeneration from in-situ seed sources, which include rootstock and lignotubers. To achieve this, the project proponent, Terra Carbon Pty Limited, is ceasing the mechanical or chemical destruction of regrowth and carefully managing the timing and extent of livestock grazing.

The broader Balonne region is largely known for its dryland livestock grazing (predominantly beef cattle and sheep), alongside broadacre and irrigated cropping such as cotton. The area experiences a moderately dry, sub-tropical continental climate. Soils in this region vary widely, ranging from fertile cracking clays (Vertosols) along the floodplains to lower-fertility, shallow sandy and stony soils (Tenosols) across the grazing rangelands.

This project operates under a nominated 25-year permanence period. By balancing agricultural activities with environmental protection, the project aims to sequester carbon, restore local ecosystems, and generate Australian Carbon Credit Units (ACCUs) over its lifetime.