Gunbower Carbon Project

Gunbower Carbon Project is an agricultural soil carbon sequestration project located in the Wheatbelt region of Western Australia. The project area spans approximately 703 hectares and is situated roughly 20 kilometers east of the town of Dumbleyung and 260 kilometers southeast of Perth. Registered in July 2025, this project operates under the proprietorship of Agriprove Solutions, a prominent soil carbon project developer in Australia.

The project employs the Estimation of Soil Organic Carbon Sequestration using Measurement and Models (2021) methodology. This method credits landholders for increasing soil organic carbon levels through new management activities. For the Gunbower Carbon Project, the primary activity involves applying synthetic or non-synthetic fertilizers to address material nutrient deficiencies in the soil. By optimizing soil nutrition, the project aims to boost plant growth and root biomass, which in turn draws more carbon from the atmosphere and stores it in the soil profile. The 2021 method requires a baseline soil core measurement followed by subsequent sampling rounds to empirically verify carbon stock increases before Australian Carbon Credit Units (ACCUs) are issued.

The surrounding Dumbleyung region is characterized by a Mediterranean climate with a semi-arid influence, receiving the majority of its rainfall during the winter months (typically 300–400mm annually). The land use in this area is predominantly mixed farming, consisting of dryland cropping (wheat, barley, canola) and livestock grazing (sheep). Soils in this part of the Southern Wheatbelt are often sandy loams or duplex soils (sand over clay), which can be highly responsive to nutrient management and improved grazing practices for carbon sequestration.