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Würzburg Universität (2005)

Aeolian sand movement in an arid linear dune ecosystem, Nizzana, Western Negev, Israel

Allgaier, Axel

Titre : Aeolian sand movement in an arid linear dune ecosystem, Nizzana, Western Negev, Israel

Auteur : Allgaier, Axel

Université de soutenance : Würzburg, Univ., Diss., 2005

Résumé
In a three-year study the current aeolian transportation processes were examined in a linear dune area previously used for grazing near Nizzana at the Israeli-Egyptian border. The research area was subject to heavy grazing across the border, which led to the total destruction of the natural vegetation in the period of 1967 to 1982. As a consequence, intensified aeolian activity and significant changes of the morphology of the dunes were observed. After the end of the grazingg on the Israeli side, a rapid return of the vegetation in the interdune corridors and on the footslopes of the dunes took place. In addition also a reduction of obviously active areas on the dune crests was observed. The situation on Egyptian territory west the border remained unchanged until today. This study is aimed at understanding the changed aeolian morphodynamics east the border. The emphasis was placed on the investigation of the spatial and temporal distribution of aeolian sand transport as well as on the influencing factors morphology, surface condition and vegetation.show moreshow less

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Page publiée le 26 mars 2007, mise à jour le 5 janvier 2019