Terrace farming was mastered by the Incas and used as part of their drainage system.
The Inca Empire put a great deal of effort into creating agricultural systems that looked promising. Terrace farming, in which farmlands are shaped like steps, is one such practice. This strategy aided the Incas in effectively dealing with erosion caused by the region's high rainfall. They built barriers around and around the farmlands as well. Those walls, in effect, worked as radiators for the crops, retaining heat during the day and releasing it at night to save the crops from dying of frostbite. The Inca's farm terraces were extremely beneficial in preventing erosion as well as mitigating the deadly impacts of landslides.
Terrace farming is a strategy for more efficient farming in which a sloped plane is broken into a sequence of gradually receding flat surfaces, resembling steps. Terrace farming was mastered by the Incas, and Machu Picchu is a prominent illustration of this. The Incas built terraces at Machu Picchu to develop farmland as well as to keep their capital from slipping away due to the region's high rains. The erection of stone retaining walls was the initial step in the construction of terraces. These collected heat from the sun during the day and radiated it out at night, keeping crops from freezing. The terrace's bottom layer was made up of gravel and larger stones; the middle layer was made up of sandy earth; and the top layer was made up of fertile topsoil, which was used to produce vegetables.
