dyynialueet
Dyynialueet are regions characterized by sand dunes formed and shaped by wind action. They occur in arid, semi-arid and coastal environments where a sustained supply of loose sand and suitable wind conditions allow dune formation, growth and movement. Dune systems arise from aeolian processes in which wind transports and deposits sand, while vegetation and moisture can stabilize and bind the sand, reducing mobility.
Dune landscapes display a variety of forms. Common types include crescent-shaped barchan dunes, which form in
Geographically, dyynialueet are found in deserts and along coastlines worldwide, where coastal sand supply and wind
Ecologically, dyynialueet provide specialized habitats for plants and animals adapted to sandy, nutrient-poor soils and dynamic
Threats include erosion from trampling, development, removal of sand, and sea-level rise. Conservation approaches focus on