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(Article of periodic en Anglais - 2012)

Document title

A regional analysis of the effects of largest events on soil erosion

Authors(s) and Affiliation(s)

GONZALEZ-HIDALGO J.C. (1 2) ; BATALLA R.J. (3 4 5) ; CERDÀ A. (6) ; DE LUIS M. (1 2) ;
(1) Dept. of Geography, Univ., Zaragoza, ESPAGNE
(2) IUCA Univ., Zaragoza, ESPAGNE
(3) Dep. of Environment and Soil Science, Univ., Lleida, ESPAGNE
(4) Forestry Science Center of Catalonia, Solsona, ESPAGNE
(5) Catalan Inst. for Water Research, ESPAGNE
(6) Dept. of Geography, Univ., Valencia, ESPAGNE

Abstract

Alternatively, the AA. define extreme events as the largest events sorted by rank, whatever their absolute magnitude. The new approach applied to soil erosion is that, whatever the magnitude of soil eroded, erosion is a time compressed process and the percentage contribution to total soil erosion by the few largest events (regardless of their magnitude) is negatively related to the total number of daily soil erosion events recorded. The AA. present here a geographical analysis of the effects of largest daily event on soil erosion by comparing 594 erosion plots located in agricultural fields under various climatic temperate conditions across the central-east of the USA. It is shown that the n-largest events contribution not differ between regions of USA. Time compression pattern is expressed by an empirical power law. Erosion research validation require a minimum number of daily events

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 95 [pp. 85-90]

Bibliographic references : 28 ref.

Collation : 3 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.03.006

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