Modelización en Geografía Física.-La compresión temporal de los procesos de erosión del suelo. Un análisis regional de la base de datos USLE.

González-Hidalgo, J.C.; de Luis, M.; López-Bermúdez, F.

Publication:
Modelización en Geografía Física.-La compresión temporal de los procesos de erosión del suelo. Un análisis regional de la base de datos USLE.

dc.contributor.author	González-Hidalgo, J.C.
dc.contributor.author	de Luis, M.
dc.contributor.author	López-Bermúdez, F.
dc.contributor.other	Universidad de Murcia	es
dc.date.accessioned	2020-09-29T15:33:15Z
dc.date.available	2020-09-29T15:33:15Z
dc.date.created	2009-09
dc.description.abstract	ABSTRACT When John Thornes and Denis Brunsden wrote in 1977 “How often one hears the researcher (and no less the undergraduate) complain that after weeks of observation “nothing happened” only to learn that, the day after his departure, a flood caused unprecedented erosion and channel changes!” (Thornes and Brunsden, 1977, p. 57), they were focusing to important problems in Geomorphology: the extreme events and time compression of geomorphological processes. Time compression is a fundamental characteristic of geomorphological processes, some times produced by extreme events. Extreme events are rare events, defined by deviation from mean values. But from magnitude-frequency analysis we know that few events, not necessarily extreme, are able to produce a high amount of gemorphological work. Finally time compression of geomorphological processes can be focused by the analysis of largest events defined by ranks, not magnitude. We have analysed the effects of largest events on total soil erosion by using 594 erosion plots from USLE database. Plots are located in different climate regions of USA and have different length of records. The 10-largest daily events mean contribution value is 60% of total soil erosion. There exist a relationship between such percentage and total daily erosive events recorded. The pattern seems to be independent of climate conditions. We discuss the nature of such relationship and the implications in soil erosion research	es
dc.format	application/pdf	es
dc.format.extent	4	es
dc.identifier.uri	http://hdl.handle.net/10201/96712
dc.language	spa	es
dc.language	eng	es
dc.relation	Sin financiación externa a la Universidad de Murcia	es
dc.relation.ispartof	Congreso Internacional sobre desertificación	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 International	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	erosión	es
dc.subject	USLE	es
dc.subject	eventos diarios	es
dc.subject	tiempo	es
dc.subject.other	CDU::5 - Ciencias puras y naturales	es
dc.title	Modelización en Geografía Física.-La compresión temporal de los procesos de erosión del suelo. Un análisis regional de la base de datos USLE.	es
dc.type	info:eu-repo/semantics/other	es
dspace.entity.type	Publication	es