Ollantaytambo

The mountainsides of Ollantaytambo, Peru are covered by an extensive set of agricultural terraces which start at the bottom of the valleys and climb up the surrounding hills. The terraces permitted farming on otherwise unusable terrain; they also allowed the Incas to take advantage of the different ecological zones created by variations in altitude. Land inside the terrace is protected from the wind by lateral walls which also absorb solar radiation during the day and release it during the night; this creates a microclimate zone 2 to 3°C warmer than the ground above it. These conditions allowed the Incas to grow species of plants native to lower altitudes that otherwise could not have flourished at this site. (Ollantaytambo, Peru, 2016.)

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