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(Article of periodic en Anglais - 2011)

Document title

Lateral erosion of the Sacramento River, California (1942–1999), and responses of channel and floodplain lake to human influences

Authors(s) and Affiliation(s)

MICHALKOVÁ M. (1 4 5) ; PIÉGAY H. (1) ; KONDOLF G.M. (2) ; GRECO S.E. (3) ;
(1) University of Lyon, UMR 5600 - CNRS, Site of Ecole Normale Supérieure, Lyon, FRANCE
(2) Department of Landscape Architecture and Environmental Planning, University of California, Berkeley, ETATS-UNIS
(3) Department of Environmental Design, University of California, Davis, ETATS-UNIS
(4) Slovak University of Technology, Bratislava, SLOVAQUIE
(5) Commenius University, Faculty of Natural Sciences, Bratislava, SLOVAQUIE

Abstract

This study focused on a spatial and temporal analysis of the active channel and associated floodplain lakes using aerial photographs spanning 5 decades (1942, 1962, 1985, 1999) over a 140 km long reach of the Sacramento. The results underline complex changes and space–time pattern in bank erosion, channel length and active channel width. They highlight the important effect of dam impact on peak flow and sediment starvation modifying longitudinally hydraulic conditions within the channel, but also the increase in riprap protection which induced change in bank erosion, channel planimetry and floodplain lake characters (geometry, frequency of renewal). Variation in flood intensities is also observed as having positive effects on the bank erosion pattern. Secondarily, land-use changes also controlled bank erosion intensity

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no2 [pp. 257-272]

Bibliographic references : 57 ref.

Collation : 10 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2106

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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