PUNA: It extends from northern Chile and Argentina to 8 º 30'LS in the Department of La Libertad (Santiago de Chuco).
has altitudes above 3.800 or 4.000 m (Figure 1 )
Rainfall is highly variable, with higher concentrations in summer.
The winds are strong and almost continuous helping to cool and dry environment.
The relief is varied dominate the plateaus (Junin and Callao) and undulating areas, not missing very steep areas, especially above 5,000 m.
Andosófila belong to the region or floors Paramosólica variables: volcanic in the south, brackish near the salt lakes, rocky, muddy, etc.
Rivers and streams are numerous, of course usually quiet.
lakes and lagoons in Peru are more than 12.000, distinguishing different types: saline lakes (Parinacochas, Salinas Loriscota), lagoons and freshwater lakes (Junin and Titicaca).
5.200 m. Above the glaciers exist.
The Puna is characterized by cold days and cool nights.
The average annual temperature is above 0 ° C and less than 7 ° C (The highest between September and April range from 15 to 22 ° C, between May and August are the minimum ranging from -9 to -25 ° C) .
There is a strong temperature variation between sun and shade.
( image 2)
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