Dendrogeomorphology in badlands: Methods, case studies and prospects

Ballesteros Canovas, Juan Antonio; Bodoque, J.M.; Lucía, A.; Martín-Duque, J.F.; Díez-Herrero, A.; Ruiz-Villanueva, V.; Rubiales, J.M.; Genova, M. (2013). Dendrogeomorphology in badlands: Methods, case studies and prospects. Catena, 106, pp. 113-122. Elsevier 10.1016/j.catena.2012.08.009

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Soil and vegetation are interacting factors controlling erosion. Soil degradation processes may affect the normal tree and shrub development and inversely, vegetation can modulate the velocity and intensity of soil development or denudation. A dendrogeomorphological approach can be used to study these interactions, allowing to obtain a date and estimate mean or specific erosion rates. This is especially useful in an unrecorded badlands and gullied environments, where the scarce vegetation may be the only proxy available to quantify the different geomorphic processes which have occurred. This paper provides a fundamental review of the dendrogeomorphological methodology applied to erosion measurement in badlands. Focusing on the response of the vegetation to the geomorphic processes, this paper: (a) describes the methodology developed to estimate erosion rates with exposed roots; (b) shows new advances through case studies; and finally, (c) discusses future lines of research to reduce methodological uncertainties and for making dendrogeomorphology more widely applicable.

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