Some aspects on applied geomorphology in periglacial regions
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difficult. Vegetable crops were introduced into these areas during the last decades of the
20th century for self-sufficiency. These cultivations are carried out in buildings to
withstand the strong frosts. The ground is generally composed of sand and gravel for a
good drainage and dripping irrigation is used (Harris, 1986). Thawing-related problems
are common. In alpine areas, the lower permafrost limit is commonly below the tree line.
Consequently, wood exploitation may produce undesirable thermokarst processes.