How much land to feed a city of 1,000 people

A city of 1,000 people, climate by climate: the countryside its grain comes from and how far a cart must haul it, inland and on a river.

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Away from water, it needs the least land in the flooded grassland (52 km², 0.5 days by cart) and the most in the barrens (6,200 km², 2 days). Its grain comes within a day's cart in 12 of 13 climates away from water, and in 13 on a river.

ClimateInlandOn a river
Tropical Rainforest790 km², 1 day790 km², 0.5 days
Tropical Dry Forest200 km², 0.5 days200 km², 0.5 days
Temperate Forest230 km², 0.5 days230 km², 0.5 days
Temperate Conifer Forest870 km², 1 day870 km², 0.5 days
Taiga1,800 km², 1 day1,800 km², 1 day
Savanna310 km², 0.5 days310 km², 0.5 days
Grassland220 km², 0.5 days220 km², 0.5 days
Flooded Grassland52 km², 0.5 days52 km², 0.5 days
Alpine Meadow1,900 km², 1 day1,900 km², 1 day
Mediterranean Scrub250 km², 0.5 days250 km², 0.5 days
Hot Desert170 km², 0.5 days170 km², 0.5 days
Cold Desert1,700 km², 1 day1,700 km², 1 day
Barrens6,200 km², 2 days6,200 km², 1 day

3,000, 10,000, 30,000, 100,000, 300,000, 1,000,000

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