Translations:Adventist Youth Honors Answer Book/Nature/Dunes/15/en
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6. What is dune blowout? How does it relate to succession?
Blowouts are open sand areas that are trough or saucer shaped in otherwise stable, plant covered dunes. The wind combined with vegetation instability is to blame. Blowouts can be caused by fires, plant diseases, wind storms, grazing of animals, human disturbances such as hiking off marked trails, off road vehicles, and clearing the area to build homes. Blowouts eventually stabilize. The farther from the coast, the faster the recovery due to lessened wind speed; pioneer plants first, then shrubs and trees. Blowouts cause a complete reversal of succession back to stage one. The best way to help a dune is to stay on the trails!
