How much land to feed a city of 300,000 people
A city of 300,000 people, climate by climate: the countryside its grain comes from and how far a cart must haul it, inland and on a river. About the size of Constantinople around 550.
Away from water, it needs the least land in the flooded grassland (15,000 km², 3 days by cart) and the most in the barrens (1,900,000 km², 31 days). Its grain comes within a day's cart in 0 of 13 climates away from water, and in 0 on a river.
| Climate | Inland | On a river |
|---|---|---|
| Tropical Rainforest | 240,000 km², 11.5 days | 240,000 km², 6.5 days |
| Tropical Dry Forest | 61,000 km², 6 days | 61,000 km², 3.5 days |
| Temperate Forest | 68,000 km², 6 days | 68,000 km², 5.5 days |
| Temperate Conifer Forest | 260,000 km², 12 days | 260,000 km², 6.5 days |
| Taiga | 550,000 km², 17 days | 550,000 km², 9.5 days |
| Savanna | 94,000 km², 7 days | 94,000 km², 4 days |
| Grassland | 67,000 km², 6 days | 67,000 km², 3.5 days |
| Flooded Grassland | 15,000 km², 3 days | 15,000 km², 2 days |
| Alpine Meadow | 570,000 km², 17.5 days | 570,000 km², 10 days |
| Mediterranean Scrub | 76,000 km², 6.5 days | 76,000 km², 3.5 days |
| Hot Desert | 52,000 km², 5.5 days | 52,000 km², 3 days |
| Cold Desert | 500,000 km², 16 days | 500,000 km², 9 days |
| Barrens | 1,900,000 km², 31 days | 1,900,000 km², 17.5 days |
1,000, 3,000, 10,000, 30,000, 100,000, 1,000,000
Open the city builder — MGS Toolbox