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(Article of periodic en Anglais - 2013)

Document title

The role of fire on soil mounds and surface roughness in the Mojave Desert

Authors(s) and Affiliation(s)

SOULARD C.E. (1) ; ESQUE T.C. (2) ; BEDFORD D.R. (3) ; BOND S. (4) ;
(1) Western Geographic Science Center, United States Dept. of the Interior, United States Geological Survey, Menlo Park, CA, ETATS-UNIS
(2) Western Ecological Research Center, Las vegas Field Station, United States Dept. of the Interior,United States Geological Survey, NV, Henderson, ETATS-UNIS
(3) Geology, Energy, Minerals, and Geophysics Science Center, United States Dept. of the Interior, United States Geological Survey, Menlo Park, CA, ETATS-UNIS
(4) Western Remote Sensing and Visualization Center, United States Dept. of the Interior, United States Geological Survey, CA, Sacramento, ETATS-UNIS

Abstract

To assess the effects of fire on surface topography, soil roughness, and vegetation, the AA. used terrestrial (ground-based) LiDAR to quantify the differences between burned and unburned surfaces by creating a series of high-resolution vegetation structure and bare-earth surface models for 6 sample plots in the Grand Canyon-Parashant National Monument, Arizona. The AA find that 11 years following prescribed burns, mound volumes, plant heights, and soil-surface roughness were significantly lower on burned relative to unburned plots. Results also suggest a linkage between vegetation and soil mounds, either through accretion or erosion mechanisms such as wind and/or water erosion. The biogeomorphic implications of fire-induced changes are significant. Reduced plant cover and altered soil surfaces from fire likely influence seed residence times, inhibit seed germination and plant establishment, and affect other ecohydrological processes

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, no2 [pp. 111-121]

Bibliographic references : 2 p.

Collation : 7 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.3264

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 27864695 : Permanent link - XML version
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