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(Article of periodic en Anglais - 2008)

Document title

Type-specific reference conditions of fluvial landscapes : A search in the past by 3D-reconstruction

Authors(s) and Affiliation(s)

HOHENSINNER S. (1) ; HERRNEGGER M. (2) ; BLASCHKE A.P. (3) ; HABEREDER C. (3) ; HAIDVOGL G. (1) ; HEIN T. (4) ; JUNGWIRTH M. (1) ; WEIß M. (1) ;
(1) Inst. of Hydrobiology and Aquatic Ecosystem Management. Univ. of Natural Resources and Applied Life Sciences, Vienne, AUTRICHE
(2) Inst. of Water Management, Hydrology and Hydraulic Engineering, Univ of Natural Resouirces and Applied Life Sciences, Vienne, AUTRICHE
(3) Inst. for Hydraulic and Water Resources Engineering, Univ. of Technology, Vienne, AUTRICHE
(4) Wasser Cluster Lunz - Inter-University center for freshwater ecosystem research, Lunz am See, AUTRICHE

Abstract

This study compares new references data derived from 3D-reconstructions in the form of digital terrain models from 2 historical Danube river landscapes : the Machland floodplain in 1812 and the former floodplain in Vienna in 1849. The focus is on the original hydrological surface and subsurface connectivity of the river-floodplain systems related to different flow situations. Here, the AA. use water cover, shorelines, depth of the groundwater table and inundation depth as surrogates for measuring connectivity. The results show that the 2 study sites naturally constituted extreme formations of the Austrian anabranching Danube sections : the Machland section, one of the narrowest floodplains but highly dynamic, and the Vienna/Lobau section, one of the broadest. Prior to channelization, the groundwater conditions in both floodplains favored the formation of wet to moist alluvial forest communities. Up until today, the 2 rivers landscapes continue to undergo different developments (rural site / building land). This analysis addresses the extent to which they have undergone morphological changes due to the various human interventions and whether this has degraded the riverine ecosystem

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2008, vol. 75, no2 [pp. 200-215]

Bibliographic references : 2 p.

Collation : 9 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2008.06.004

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2008
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