|Lake Titicaca, BOLIVIA
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|Continent: South America
Site: Lake Titicaca
Description of the local variant of the technique
Terraced fields is the main technique employed in the management of steep slopes, it has the advantage of keeping erosion under control, of ensuring a better use of water, of regulating temperatures, of maintaining soil fertility, reducing damaging frost and, more generally, of allowing the cultivation of areas otherwise unsuitable for agriculture. Among the areas of interest, there are two types of Andenes: bench terraces, or Bancales, which are flat or nearly flat, and sloping terraces, or Bargones, where the natural inclination of the land is only alleviated. Regarding irrigation, the Andenes are very dependent on the level of afforestation of the catchment basin. Many Andenes, in fact, have been abandoned as a result of deforestation of the slopes above. Today, the abandoned terraces amount at approximately 30% as it has been calculated. The main cause was the dramatic impact of the Spanish conquest on native social structures, a calamity which was subsequently worsened by the republican regime, and lasting to the present day.
Technique at risk.