Wonga Carbon Project

Wonga Carbon Project is a soil carbon project located in the Darling Downs region of Queensland, approximately 55km northeast of the major regional town of Goondiwindi. It was registered in March 2021 and covers an active project area of 439.78 hectares.

The Measurement of Soil Carbon Sequestration in Agricultural Systems (2018) methodology involves changing agricultural management practices to increase the amount of carbon stored in the soil. Standard requirements for this project type involve establishing baseline soil carbon stocks through rigorous physical soil sampling and laboratory testing, followed by subsequent sampling rounds over the life of the project to measure and verify the net increase in sequestered carbon.

The broader Goondiwindi area is a highly productive agricultural region known for robust cropping operations including cotton and grain, as well as fine wool production and beef cattle grazing. The local environment typically has a semi-arid to sub-humid rainfall classification, meaning water management is critical for local farming. The regional soils generally consist of well-drained sandy loams, dermosols, and the heavy black cracking clays (vertosols) characteristic of the Darling Downs.

This project aims to actively build soil carbon stocks by applying nutrients to the land in the form of synthetic or non-synthetic fertilisers to address material soil deficiencies. Interestingly, on March 4, 2025, the project underwent a boundary variation, resulting in certain land areas originally listed being removed from the overall project. The project is managed by proponent Agriprove Solutions Pty Ltd, operating alongside agent Agriprove Pty Ltd.