Coombah 23 Carbon Project

Coombah 23 Carbon Project is a soil carbon project located at "Coombah" station near Mallowa, approximately 60km southwest of Moree in the Northern Tablelands/North West Slopes region of New South Wales. Registered in October 2024, the project covers a significant area of 4,111 hectares within the Moree Plains Shire. The property is situated in the Gwydir Valley, a region heavily utilized for mixed agricultural purposes, specifically broadacre cropping (cotton and cereals) and cattle grazing.

The project operates under the 2021 Soil Carbon (Measurement and Models) methodology, which credits increases in soil organic carbon (SOC) achieved through changes in land management. The specific activity listed for this project is "applying nutrients to the land," which often involves the use of synthetic or non-synthetic fertilizers to correct material deficiencies. Given the proponent is Loam Carbon Pty Ltd, it is highly likely the project integrates their proprietary microbial soil inoculants (fungi) alongside nutrient management strategies to accelerate stable carbon sequestration in cropping or grazing soils.

Environmentally, the Mallowa and Moree Plains region is characterized by a semi-arid climate with summer-dominant rainfall. The landscape typically features flat, heavy grey and black cracking clay soils (Vertosols), which are highly fertile but prone to waterlogging during flood events, historically noted in relation to the nearby Mallowa Creek and Gwydir wetlands. The property itself is an established agricultural holding, historically associated with irrigated cotton farming and cattle breeding operations.