Volcanic soil formation in Calabria (southern Italy): The Cecita Lake geosol in the late Quaternary geomorphological evolution of the Sila uplands

Scarciglia, Fabio; Rosa, Rosanna De; Vecchio, Giuseppe; Apollaro, Carmine; Robustelli, Gaetano; Terrasi, F.

doi:10.1016/j.jvolgeores.2007.10.014

Cited by 43 publications

(22 citation statements)

References 51 publications

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“…This finding parallels similar ones in other parts of the world where mountain andic soils (not necessarily Andosols) have been reported in Bhutan (Baumler et al, 2005), in Brazil (Dümig et al, 2008), in California (Graham and O'Geen, 2010;Rasmussen et al, 2010), the Pacific Northwest, USA (McDaniel and Hipple, 2010), NW Spain (Estevez et al, 2016), and also in Italy (Iamarino and Terribile, 2008;Scarciglia et al, 2008;Vingiani et al, 2014).…”

Section: Soil and Landscapesupporting

confidence: 89%

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The hidden ecological resource of andic soils in mountain ecosystems: evidence from Italy

et al. 2018

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Abstract. Andic soils have unique morphological, physical, and chemical properties that induce both considerable soil fertility and great vulnerability to land degradation. Moreover, they are the most striking mineral soils in terms of large organic C storage and long C residence time. This is especially related to the presence of poorly crystalline clay minerals and metal-humus complexes. Recognition of andic soils is then very important.Here we attempt to show, through a combined analysis of 35 sampling points chosen in accordance to specific physical and vegetation rules, that some andic soils have an utmost ecological importance.More specifically, in Italian non-volcanic mountain ecosystems ( > 600 m a.s.l.) combining low slope (< 21 %) and highly active green biomass (high NDVI values) and in agreement to recent findings, we found the widespread occurrence of andic soils having distinctive physical and hydrological properties including low bulk density and remarkably high water retention. Most importantly, we report a demonstration of the ability of these soils to affect ecosystem functions by analysing their influence on the timescale acceleration of photosynthesis estimated by NDVI measurements.Our results are hoped to be a starting point for better understanding of the ecological importance of andic soils and also possibly to better consider pedological information in C balance calculations.

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Section: Soil and Landscapesupporting

confidence: 89%

“…in Bhutan: Baumler et al, 2005; in Brazil: Dümig et al, 2008;in California: Graham and O'Geen, 2010;Rasmussen et al, 2010; in the Pacific Northwest, USA: McDaniel and Hipple, 2010;in Spain: Estevez et al, 2016; and also in Italy: Iamarino and Terribile, 2008;Scarciglia et al, 2008;Vingiani et al, 2014;Raab et al, 2017;Mileti et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The hidden ecological resource of andic soils in mountain ecosystems: evidence from Italy

et al. 2018

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“…These results can be explained taking into account the variable depth of topsoil horizons, as well as that of the granitic bedrock or sediments. In fact, the spatial distribution of soil thickness in the study area, shows that soils are thinner in the eastern sector, where the bedrock is consequently closer to, or exposed at, the topographic surface (Scarciglia et al, 2008), suggesting that the higher amounts of uranium are contributed by the granite parent materials. Despite the lack of data on natural radioactivity for the bedrock in the investigated area, due to its very scarce exposure at the topographic surface coupled with the dominance of granitederived sediments of different types, some reference average values ; n is the number of measures.…”

Section: Discussionmentioning

confidence: 88%

“…10; it shows a rough correspondence between soil groups included in set I and thicker soil profiles, as well as between that included in set IV and thinner soils (Scarciglia et al, 2008).…”

Section: Radon Radioactivity Valuesmentioning

confidence: 92%

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Natural radioactivity levels (K, Th, U and Rn) in the Cecita Lake area (Sila Massif, Calabria, Southern Italy): An attempt to discover correlations with soil features on a statistical base

Buccianti¹,

Apollaro²,

Bloise³

et al. 2009

Geoderma

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Soils can exhibit a complex range of physical, mineralogical, and chemical features depending on many interrelated factors such as parental rock composition and mineralogy, climate, topography, vegetation amounts and types, water infiltration versus runoff, soil moisture, organic matter, presence and types of anthropogenic contaminants, and many others. Radioactivity as measured on these complex systems is consequently perturbed by several mixed effects. In order to find out a possible (potential) relationship among soil properties and experimental data attributable to radioactivities of K, Th, U and Rn a detailed investigation has been performed in the Cecita Lake basin (Sila Grande, Calabria, Southern Italy). Most of the soil types outcropping in the Cecita Lake surroundings belong to the Entisol and Inceptisol orders [USDA (United States Department of Agriculture), 2006. Keys to Soil Taxonomy. 10th edit., USDA, Soil Survey Staff, Natural Resources Conservation Service, Washington D.C., 333 pp.], representing relatively young, poorly to moderately differentiated soils, showing features strongly dependent on the nature of the parent rock and the climatic conditions. Disintegrations contributed by K, Th, U and Rn measured respectively in % (K), ppm (U and Th) and kBq/m 3 (Rn), have been related to 13 a priori known soil unit groups with well-defined general features and spatial position. The data have been analysed by using graphical and numerical statistical procedures able to manage compositional data in a correct sample space. The paper summarises the results of this research and highlights the conclusions drawn from these investigations, particularly concerning i) the modelling of the high U variability, a behaviour that tends to homogenise the differences potentially attributable to soil features, with the exception of situations where uranium could be enriched due to adsorption onto iron oxi-hydroxides and/or clay minerals or concentrated in argillic horizons due to illuviation; ii) the discovering of the discriminative effect of the K/Th ratio values, particularly for soil groups where Th behaviour, as other tetravalent actinides, is strongly affected by the presence of mineral colloids or where the presence of clays affects the trapping of K; iii) the clustering of the a priori known soil groups in four new sets characterised by internal similarities for Rn values for which the morphology appears to be the most important discriminative effect.

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Climate and relief‐induced controls on the temporal variability of denudation rates in a granitic upland

Raab

Egli

Norton

et al. 2019

Earth Surf Processes Landf

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How soil erosion rates evolved over the last about 100 ka and how they relate to environmental and climate variability is largely unknown. This is due to a lack of suitable archives that help to trace this evolution. We determined in situ cosmogenic beryllium‐10 (10Be) along vertical landforms (tors, boulders and scarps) on the Sila Massif to unravel their local exhumation patterns to develop a surface denudation model over millennia. Due to the physical resistance of tors, their rate of exhumation may be used to derive surface and, thus, soil denudation rates over time. We derived soil denudation rates that varied in the range 0–0.40 mm yr‐1. The investigated boulders, however, appear to have experienced repositioning processes about ~20–25 ka bp and were therefore a less reliable archive. The scarps of the Sila upland showed a rapid bedrock exposure within the last 8–15 ka. Overall, the denudation rates increased steadily after 75 ka bp but remained low until about 17 ka bp. The exhumation rates indicate a denudation pulse that occurred about 17–5 ka bp. Since then the rates have continuously decreased. We identify three key factors for these developments – climate, topography and vegetation. Between 75 and 17 ka bp, climate was colder and drier than today. The rapid changes towards warmer and humid conditions at the Pleistocene–Holocene transition apparently increased denudation rates. A denser vegetation cover with time counteracted denudation. Topography also determined the extent of denudation rates in the upland regime. On slopes, denudation rates were generally higher than on planar surfaces. By determining the exhumation rates of tors and scarps, soil erosion rates could be determined over long timescales and be related to topography and particularly to climate. This is key for understanding geomorphic dynamics under current environmental settings and future climate change. © 2019 John Wiley & Sons, Ltd. © 2019 John Wiley & Sons, Ltd.

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Volcanic soil formation in Calabria (southern Italy): The Cecita Lake geosol in the late Quaternary geomorphological evolution of the Sila uplands

Cited by 43 publications

References 51 publications

The hidden ecological resource of andic soils in mountain ecosystems: evidence from Italy

The hidden ecological resource of andic soils in mountain ecosystems: evidence from Italy

Natural radioactivity levels (K, Th, U and Rn) in the Cecita Lake area (Sila Massif, Calabria, Southern Italy): An attempt to discover correlations with soil features on a statistical base

Climate and relief‐induced controls on the temporal variability of denudation rates in a granitic upland

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