Geomorphoedaphic Itinerary of Arribes Del Duero (Spain)

Abstract

In recent years there has been an increasing interest in the Geological Heritage, its evaluation, protection and promotion. The Geomorphological Heritage also interests the scientific community, especially those sectors of great scientific relevance that are characterized by its reliefs. For its part, the soil study provides information about the genesis of the soils and places them as a non-renewable natural resource and highlights the importance of its conservation for future generations. The methodology followed consisted in the valuation of the geological heritage, identifying different places and taking into account the geomorphological and pedological interests, presenting the latter, an innovative character. In this way, a “Geomorphoedaphic” itinerary of the Arribes del Duero Natural Park has been made. This is one of the first steps to its inclusion as a Geopark.

Natural Hazard Characterisation in the Arribes del Duero Natural Park (Spain)

“…The slopes are those areas where there is already a slight slope but without forming a valley. On the other hand, regarding the difference between valleys and incised valleys, in addition to presenting a clear V-shape, the former are attributed to less abundant streams or rivers and the latter to more abundant rivers, which give rise to more defined valleys but without reaching the boxing of the Duero [38].…”

“…These have been formed due to the differential erosion, over long periods of time, of various morphogenetic processes typical of subtropical palaeoclimatic conditions. The inselbergs that can be distinguished in the area are flat-topped, conical and domical [38,39].…”

“…It could be considered as a large surface area but, in reality, it is a multi-cyclic and staggered group, formed as a consequence of a relative lowering of the base level, rejuvenation of the network and reactivation of the landscape. In this way, six levels or erosional surfaces have been differentiated that are distributed gently staggered towards the west, a consequence of the tilting of the Meseta towards the Atlantic and, therefore, with ages later than the Oligocene [38].…”

“…The fluvial forms existing in the area are floodplain, which are areas of scarce development; terraces, which are deposits made up of silts and sands; cones of dejection, which are the product of the discharge of materials; abandoned meanders, which correspond to old valleys, abandoned by rivers or streams due to changes in the longitudinal profile; and, finally, aluvial fan ("rañas"), which are a mixture of colluvial and fluvial deposits of the floodplain, their lithology are sands and quartz and quartzite pebbles, of variable dimensions, generally loose, products of the erosion of the Paleozoic mountainous reliefs [38].…”

GIS analysis of urban ground collapse susceptibility: a case study of eastern Hangzhou, China

“…GIS analysis have led to a revolution in hazard and damage mitigation studies due to their efficiency in spatial data management and manipulation (Lathrop and Bognar, 1998;Lee et al, 2004;Orhan et al, 2020). Various GIS-based methods that have been used in other geological disaster such as landslide (Feizizadeh and Blaschke, 2011;Michael and Samanta, 2016;Roccati et al, 2021;Merchán et al, 2023), floods (Lyu et al, 2018;Xiong et al, 2019;Lyu et al, 2020;Sarkar et al, 2022), earthquake (Liu et al, 2012;Heron et al, 2014;Giovinazzi et al, 2021), etc., can also be used in susceptibility and vulnerability mapping can be adopted to develop sinkhole susceptibility and hazard models. Quantitative modeling approaches combining GIS analysis to UGC susceptibility mapping include deterministic, nearest neighbor or density distribution, and probabilistic methods (Galve et al, 2009;Ciotoli et al, 2012;Ozdemir, 2016;Pellicani et al, 2017;Yu et al, 2023).…”