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(Article of periodic en Anglais - 2012)

Document title

Historic range of variability in geomorphic processes as a context for restoration : Rocky Mountain National Park, Colorado, USA

Authors(s) and Affiliation(s)

RUBIN Z. (1) ; RATHBURN S.L. (1) ; WOHL E. (1) ; HARRY D.L. (1) ;
(1) Dep. of Geosciences, Colorado State Univ., Fort Collins, ETATS-UNIS

Abstract

The AA. investigated historic range of variability (HRV) of aggradational processes in the subalpine Lulu City wetland in Rocky Mountain National Park to understand the impacts of 2 centuries of altered land use and to guide restoration planning following a human-caused debris flow in 2003 that deposited up to 1 m of sand and gravel in the wetland. Historic aerial photograph interpretation, ground penetrating radar surveys, and trenching, coring, and radiocarbon dating of valley-bottom sediments were used to map sediment deposits, quantify aggradation rates, and identify processes (in-channel and overbank fluvial deposition, direct hillslope input, beaver pond filling, peat accumulation) creating alluvial fill within the wetland. Results and discussion. Understanding the HRV of aggradation rates and processes can constrain management and restoration scenarios by quantifying the range of disturbance from which a landscape can recover without active restoration

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, no2 [pp. 209-222]

Bibliographic references : 1 p.

Collation : 9 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2249

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