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Article

Geomorphic Approaches to Estimate Short-Term Erosion Rates: An Example from Valmarecchia River System (Northern Apennines, Italy)

1
Department of Pure and Applied Sciences, University “Carlo Bo”, via Ca’ le Suore 2, 61029 Urbino, Italy
2
CNR ISPC, C/da S. Loja Zona Industriale, 85050 Tito Scalo, Italy
*
Author to whom correspondence should be addressed.
Water 2020, 12(9), 2535; https://doi.org/10.3390/w12092535
Received: 27 July 2020 / Revised: 22 August 2020 / Accepted: 9 September 2020 / Published: 11 September 2020
(This article belongs to the Special Issue GIS Application in Fluvial Geomorphology and Landscape Changes)
Studying fluvial dynamics and environments, GIS-based analyses are of fundamental importance to evaluate the network geometry and possible anomalies, and can be particularly useful to estimate modifications in processes and erosion rates. The aim of this paper is to estimate short-term erosion rates attributable to fluvial processes in two sample catchment sub-basins of the Marecchia river valley, by conducting quantitative morphometric analyses in order to calculate various descriptive parameters of the hierarchisation of the river networks and the mean turbid transport of streams (Tu). Sediment yield transported by streams can in fact partially express the amount of erosional processes acting within the drainage basin. The study area includes two sub-basins of the Marecchia valley (Senatello river, 49 km2 and Mazzocco river, 47 km2), chosen because of their similar extent and of the different location in the major catchment basin. Starting from geomorphological maps of the two river basins, the Tu parameter has been calculated and converted in short-term rate (average value 0.21 mm/year). Moreover, the comparison of these short-term mean data with the uplift rates calculated on a regional scale (0.41 ± 0.26 mm/year) in the Marecchia valley confirms that the northern Apennines may represent a non-steady state system. View Full-Text
Keywords: geomorphology; sediment yield; erosion rate; hydrographical network; Marecchia basin; northern Italy geomorphology; sediment yield; erosion rate; hydrographical network; Marecchia basin; northern Italy
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MDPI and ACS Style

Guerra, V.; Lazzari, M. Geomorphic Approaches to Estimate Short-Term Erosion Rates: An Example from Valmarecchia River System (Northern Apennines, Italy). Water 2020, 12, 2535. https://doi.org/10.3390/w12092535

AMA Style

Guerra V, Lazzari M. Geomorphic Approaches to Estimate Short-Term Erosion Rates: An Example from Valmarecchia River System (Northern Apennines, Italy). Water. 2020; 12(9):2535. https://doi.org/10.3390/w12092535

Chicago/Turabian Style

Guerra, Veronica, and Maurizio Lazzari. 2020. "Geomorphic Approaches to Estimate Short-Term Erosion Rates: An Example from Valmarecchia River System (Northern Apennines, Italy)" Water 12, no. 9: 2535. https://doi.org/10.3390/w12092535

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