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(Article of periodic en Anglais - 2013)

Document title

The geomorphological context and impact of the linear emergent macrophyte, Sparganium erectum L. : a statistical analysis of observations from British rivers

Authors(s) and Affiliation(s)

GURNELL A.M. (1) ; O'HARE M.T. (2) ; O'HARE J.M. (1) ; SCARLETT P. (3) ; LIFFEN T.M.R. (1 4) ;
(1) School of Geography, Queen Mary Univ., London, ROYAUME-UNI
(2) Centre for Ecology and Hydrology, Bush Estate, Penicuik, ROYAUME-UNI
(3) Centre for Ecology and Hydrology, Oxfordshire, Wallingford, ROYAUME-UNI
(4) Dept. of Ecology and Genetics, Univ., Uppsala, SUEDE

Abstract

Forty-seven sites across Britain were selected for field investigation, spanning the range of environmental conditions within which Sparganium erectum had been found to be present in previous analyses of national data sets. A combination of descriptive graphs and statistics, principal components analysis, and Kruskal–Wallis tests were used to explore the large multivariate data set collected at the 47 sites. The analyses showed that S. erectum is present in significant quantities in relatively narrow and shallow, low gradient channels of varying bed sediment calibre (cobble to silt). Within these environments, S. erectum stands (features) were associated with fine sediment retention, aggradation and submerged landform construction, leading to bench development and so, potentially, to adjustments in channel form and position.

Source

Article of periodic

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

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

Millesime : 2013, vol. 38, no15 [pp. 1869-1880]

Bibliographic references : 1 p.

Collation : 9 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3473

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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