Resource nodes
Fertile land
Fertile land yields food every turn while it sits inside a city's region.
Food finances two things: unit upkeep and population growth (Economy). Fertile land adds to your empire's net food, and that food flows not to the city holding the node but to your growth focus or the default recipient (Food). The other route to food income is the Farm — and the two combine: fertile land in the region also adds a location share to that city's Farm.
A node only works inside a region, and a region is not fixed: it widens with population and can be extended with gold (Territory and score). Founding a city next to a node is no different from founding it on top, and is usually more flexible — and growing a border toward a node you cannot reach is an option too.
The numbers on this page are read from the game’s balance tables.