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Connexion

(Article of periodic en Anglais - 2013)

Document title

(Dis)Connectivity in catchment sediment cascades : a fresh look at the sediment delivery problem

Authors(s) and Affiliation(s)

FRYIRS K. (1) ;
(1) Dep. of Environment and Geography, Discipline of Environmental Science, Macquarie Univ., North Ryde, AUSTRALIE

Abstract

This paper presents a conceptual framework for analysis of catchment (dis)connectivity that incorporates both spatial and temporal variability in the operation of the sediment cascade. This approach examines where blockages occur to disrupt these longitudinal, lateral and vertical linkages in catchments. Depending on the position of blockages (termed buffers, barriers and blankets), and their sediment residence time, various parts of a catchment may be actively contributing sediment to the sediment cascade and be switched on, or inactive and switched off. This paper discusses how such a framework can be used to model response times to disturbance and explain the manifestation of geomorphic change in catchments. The paper then highlights challenges geomorphologists face in applying such a framework to understand the internal dynamics of the catchment sediment cascades, and forecast how environmental change might affect the operation of sediment fluxes into the future

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, no1 [pp. 30-46]

Bibliographic references : 3 p.

Collation : 8 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3242

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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