eft side of the Forum lie the Dirtfarms. Earth from the outside is regularly carted in so that hardy tubers, vegetables and some grains can be grown. Here also lies the waterpump. Manual/slave labor is required to pump the precious water through mostly destroyed and leaking aquaeducts from deep below.
The outer Dirtfarms basically rule themselves and a community of productive farmers has formed there. They ensure their relative independence by supplying The Forces with food.