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A water channel to drain and irrigate andenes. Andenes were complicated to build, requiring provisions for drainage and irrigation. The first step in constructing an andén was to lay an underground or bedrock foundation about 1 metre (3.3 ft) deep to lend strength and stability to the retaining wall, which might rise about 2 metres (6.6 ft) above the slope of the ground.
Terraces were built to permit agriculture in the rugged terrain of the Andes. The heartland of the Inca Empire was in the high plateaus and mountains of the Andes of Peru. This area is mostly above 3,000 metres (9,800 ft) in elevation and is characterized by low or seasonal precipitation, low temperatures, and thin soils.
A terrace in agriculture is a flat surface that has been cut into hills or mountains to provide areas for the cultivation for crops, as a method of more effective farming. Terrace agriculture or cultivation is when these platforms are created successively down the terrain in a pattern that resembles the steps of a staircase.
Nested fill terraces: Nested fill terraces are the result of the valley filling with alluvium, the alluvium being incised, and the valley filling again with material but to a lower level than before. The terrace that results for the second filling is a nested terrace because it has been “nested” into the original alluvium and created a terrace.
The Quimbaya inhabited regions of the Cauca River Valley between the Western and Central Ranges of the Colombian Andes (current-day departments of Caldas, Risaralda and Quindío). This culture is recognized by their goldsmith, which, among other things, produced poporos (bottles for storing lime used in chewing of coca leaves) of gold. [10] [7] [8]
Also, they include benches in the form of narrow strath terraces (st), fill terraces (ft), and cut terraces (ct) underlain by fluvial sediments. In geomorphology , geography and geology , a bench or benchland is a long, relatively narrow strip of relatively level or gently inclined land bounded by distinctly steeper slopes above and below it.
A river terrace is composed of an abandoned surface, or tread, and the incised surface, or riser. [2] If you can date the age of the terrace tread, one can get an estimate of the age of abandonment of that surface, and the age of incision. A simple calculation of h 1 /t 1 can give the average rate of incision(r i), where h i = height of river ...
"Indian Reserve" is a historical term for the largely uncolonized land in North America that was claimed by France, ceded to Great Britain through the Treaty of Paris (1763) at the end of the Seven Years' War—also known as the French and Indian War—and set aside for the First Nations in the Royal Proclamation of 1763.