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Evidence of active dune sands on the Great Plains in the 19th century from accounts of early explorers

Auteurs :
MUHS, D.R.
HOLLIDAY, V.T.

Description :
Accounts published by early explorers indicate that at least parts of dune fields in Nebraska, Colorado, Kansas, New Mexico, and Texas were active in the 19th century. Based of an index of dune mobility and a regional tree-ring record, the probable cases for these periods of greater eolian activity are droughts, accompanied by higher temperatures, which greatly lowered the precitation-to-evapotranspiration ratio and diminished the cover of stabilizing vegetation. Dune fields in the Great Plains are extremely sensitive to climate change and the potential for their reactivation in the future is high.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1995, vol. 43, n°. 2, p. 198-208, Collation : Illustration, Références bibliographiques : 65 ref.

Date :
1995

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier

Langue :
Anglais
Droits :
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