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(Article of periodic en Anglais - 2011)

Document title

Negligible soil erosion in a burned mountain watershed, Canadian Rockies : field and modelling investigations considering the role of duff

Authors(s) and Affiliation(s)

MARTIN Y.E. (1 2 3) ; JOHNSON E.A. (4 3) ; GALLAWAY J.M. (1) ; CHAIKINA O. (1) ;
(1) Dep. of Geography, Univ., Calgary, CANADA
(2) Dep. of Geoscience, Univ., Calgary, CANADA
(3) Biogeoscience Inst., Univ., Calgary, CANADA
(4) Dep. of Biological Sciences, Univ., Calgary, CANADA

Abstract

The field site was located in a closed canopy, subalpine forest in Kootenay National Park, British Columbia that was subjected to a high-intensity crown fire in the summer of 2003. Low soil erosion values were documented at the study site in the years immediately following the 2003 wildfire. Following the wildfire, notable duff coverage (the duff layer is the combined fermentation and humus soil organic layers) remained above the mineral soil. The Green-Ampt model of rainfall infiltration is employed to better assess how interactions between rainfall duration/intensity and soil/duff properties affect hydrological response and the generation of overland flow. Model results show that duff provides an effective zone for detention storage and that duff accommodates all rainfall intensities to which it was subjected without the occurrence of surface ponding. In addition, the penetration of the wetting front is relatively slow in duff due to its high porosity and water storage potential

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, no15 [pp. 2097-2113]

Bibliographic references : 2 p.

Collation : 9 fig., 9 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2236

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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