Raised fields (waru waru) around Lake Titicaca

c. 1,000 BCENotable

Andean farmers build raised planting beds separated by water channels on the Titicaca plain. The water stores daytime heat that protects potatoes and other crops from frost at about 3,800 meters.

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Documentanthropology.sas.upenn.edu

Raised fields and sustainable agriculture in the Lake Titicaca Basin of Peru, Erickson and Candler (University of Pennsylvania) ↗