Terrace farming is a type of farming that was developed first by the Inca people. This method of farming uses "steps", called andenes, that are built into the side of a mountain or hill. On each anden, various crops are planted, and when it rains, instead of washing away all of the nutrients in the soil, the nutrients are carried down to the next level. Additionally, these "steps" prevent a free flowing avalanche of water that would take plants with it and destroy the all of the crops on the hillside. This system also allowed them to build aqueducts, which carried water to each andenes. The Incas built their aqueduct system so well that it is still used today. Terrace farming is often used by the Chinese in their rice farms.
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