Vegetable floors in the Alps.
Vegetation flooring is the plant stratification according to the usual height in mountainous ecosystems. The variations are mainly due to the thermal gradient (slightly higher than half a degree per hundred meters of altitude), which generates what is sometimes called bioclimatic floors with vegetation and differentiated fauna.
Although the stratification in mountainous areas had already been described in the 18th century, Giraud de Soulavié was the first to use the term (in its original French, étage de végétation). Since then the term has been used to characterize different mountainous ecosystems, such as Teide or the Alps.
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