If 60% of the food for the UK is produced in the UK, how much of the arable land is actually used?

Question

Facts and sources only please.

Answer 1

All of the easily arable land, and a lot of marginally arable land.

Part of the difficulty in answering this is that there are parks and roadways, houses and barns that sit on what was once arable land. DO we want to include all that developed area as arable?

If land is stony highlands, with thin soil and is being used for pasture because it is barely arable, do we want it included.

In Ontario we tend to discuss how much land that is undeveloped class 5 agricultural land (or better) is in production. We have in Ontario vast numbers of hectares that are inhospitable to farming, so we often chose to exclude them as not really arable.