Senator JOYCE (Queensland—Leader of The Nationals in the Senate) (15:03): Mr President, I ask a supplementary question. I refer the minister to the fact that over the last 30 years Australia's land in agricultural production has fallen from 500 million hectares to 400 million hectares. I also refer the minister to the recent announcement made by the Queensland Labor government of plans to shut down even more agricultural land through its border-to-beach wildlife corridor, a policy which AgForce has described as an example of a constraint on the state's farm sector. If the government supports locking away agricultural land in green corridors, where will our future food and fibre come from?