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Title

Mapping monthly rainfall erosivity in Europe

AuthorsBallabio, Cristiano; Borrelli, Pasquale; Spinoni, Jonathan; Meusburger, Katrin; Michaelides, Silas; Beguería, Santiago ; Klik, Andreas; Petan, Sašo; Janeček, Miloslav; Olsen, Preben; Aalto, Juha; Lakatos, Mónika; Rymszewicz, Anna; Dumitrescu, Alexandru; Perčec Tadić, Melita; Diodato, Nazzareno; Kostalova, Julia; Rousseva, Svetla; Banasik, Kazimierz; Alewell, Christine; Panagos, Panos
KeywordsREDES
R-factor
Seasonal rainfall intensity
Modelling
Soil erosion
K-means clustering
Cubist
Issue DateFeb-2017
PublisherElsevier
CitationBallabio C, Borrelli P, Spinoni J, Meusburger K, Michaelides S, Beguería S, Klik A, Petan S, Janeček M, Olsen P, Aalto J, Lakatos M, Rymszewicz A, Dumistrescu A, Perčec Tadić M, Diodato N, Kostalova J, Rousseva S, Banasik K, Alewell C, Panagos P. Mapping monthly rainfall erosivity in Europe. Science of The Total Environment 579 (1): 1298–1315 (2017)
AbstractRainfall erosivity as a dynamic factor of soil loss by water erosion is modelled intra-annually for the first time at European scale. The development of Rainfall Erosivity Database at European Scale (REDES) and its 2015 update with the extension to monthly component allowed to develop monthly and seasonal R-factor maps and assess rainfall erosivity both spatially and temporally. During winter months, significant rainfall erosivity is present only in part of the Mediterranean countries. A sudden increase of erosivity occurs in major part of European Union (except Mediterranean basin, western part of Britain and Ireland) in May and the highest values are registered during summer months. Starting from September, R-factor has a decreasing trend. The mean rainfall erosivity in summer is almost 4 times higher (315 MJ mm ha− 1 h− 1) compared to winter (87 MJ mm ha− 1 h− 1). The Cubist model has been selected among various statistical models to perform the spatial interpolation due to its excellent performance, ability to model non-linearity and interpretability. The monthly prediction is an order more difficult than the annual one as it is limited by the number of covariates and, for consistency, the sum of all months has to be close to annual erosivity. The performance of the Cubist models proved to be generally high, resulting in R2 values between 0.40 and 0.64 in cross-validation. The obtained months show an increasing trend of erosivity occurring from winter to summer starting from western to Eastern Europe. The maps also show a clear delineation of areas with different erosivity seasonal patterns, whose spatial outline was evidenced by cluster analysis. The monthly erosivity maps can be used to develop composite indicators that map both intra-annual variability and concentration of erosive events. Consequently, spatio-temporal mapping of rainfall erosivity permits to identify the months and the areas with highest risk of soil loss where conservation measures should be applied in different seasons of the year.
Description18 Pags.- 14 Figs. © 2016 The Authors. Published by Elsevier B.V. This is an open access article under a CC BY license (http://creativecommons.org/licenses/by/4.0/).
Publisher version (URL)http://dx.doi.org/10.1016/j.scitotenv.2016.11.123
URIhttp://hdl.handle.net/10261/142659
DOI10.1016/j.scitotenv.2016.11.123
ISSN0048-9697, ESSN:
E-ISSN1879-1026
Appears in Collections:(EEAD) Artículos
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