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(Article of periodic en Anglais - 2012)

Document title

Fluvial carbon flux from headwater peatland streams : significance of particulate carbon flux

Authors(s) and Affiliation(s)

PAWSON R.R. (1) ; EVANS M.G. (1) ; ALLOTT T.E.H.A. (1) ;
(1) Upland Environments Research Unit, School of Environment and Development, Univ., Manchester, ROYAUME-UNI

Abstract

This paper presents the first detailed assessment of dissolved and organic carbon losses from a severely eroded headwater peatland (River Ashop in the English Peak District, South Pennines, UK). Total annual fluvial organic carbon losses in dissoved (DOC) and particulate form (POC) are decreasing from the headwaters to the main catchment outlet. In contrast to less eroded systems fluvial organic carbon flux is dominated by POC. POC:DOC ratios decrease from values of 4 in the headwaters to close to unity at the catchment outlet. These results demonstrate the importance of eroding headwater sites as sources of POC to the fluvial system. Comparison with a range of catchment characteristics reveals that drainage density is the best predictor of POC:DOC but there is scatter in the relation in the headwaters

Source

Article of periodic

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

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

Millesime : 2012, vol. 37, no11 [pp. 1203-1212]

Bibliographic references : 2 p.

Collation : 6 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3257

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