Influence of serpentine abundance on the vertical distribution of available elements in soils

Bonifacio, Eleonora; Falsone, Gloria; Catoni, Marcella

doi:10.1007/s11104-012-1530-y

Cited by 14 publications

(8 citation statements)

References 50 publications

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“…We can therefore, hypothesize that, when positively charged Fe minerals are present in very high concentration in the soil (60.0 g FeD Kg −1 ± 31.3 in Bx, Table 3), they can play a role in the reversible cementation and brittleness of fragipan horizons. The inclusion of K in the discriminant equation was somehow surprising, considering that no significant differences in K ex content were observed between B and Bx horizons (Table 3) and the amounts were quite low, as common in soils of Northwestern Italy (Bonifacio et al 2013). The effect may however be indirect as K ex could be considered as a marker of a more advanced weathering stage of Bx horizons on this river side.…”

Section: Discussionmentioning

confidence: 98%

Characteristics of fragipan B horizons developed on different parent material in North-Western Italy

Raimondo

Falsone

D’Amico

et al. 2018

Archives of Agronomy and Soil Science

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A Fragipan (Bx) is a soil horizon hard when dry and brittle when moist, that undergoes slaking upon water immersion, forming a barrier to roots and limiting land use. Brittleness and slaking depend on soil porosity and particle arrangement, but still no agreement exists on the inorganic components responsible for such arrangement. We hypothesized that the same kind of particle arrangement may originate from different soil components, ultimately depending on the lithology of parent material, and evaluated the soil and clay characteristics that best differentiate Bx from B horizons. Thirty-six samples were taken from Typic Fragiudalfs developed on the two sides of an alluvial fan characterized by different amounts of ultramafic materials. Discriminant Analysis evidenced that pedogenic Fe oxides were fundamental in discriminating Bx from B horizons on pure ultramafic parent material, while clay mineralogy was more important in soils with less ultramafic materials. In the first case, the association between clay minerals and self-assembling oxides systems may lead to brittleness, while in the second case the higher abundance of kaolinite may contribute to weak associations between pH-dependent sites and negatively charged surfaces. The only common feature to fragipans on both river sides was a higher degree of weathering.

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Section: Discussionmentioning

confidence: 98%

Characteristics of fragipan B horizons developed on different parent material in North-Western Italy

Raimondo

Falsone

D’Amico

et al. 2018

Archives of Agronomy and Soil Science

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“…8. If a long time passes before revegetation occurs, the new equilibrium between forest and soil will favor a poorly fertile system (Jobbágy and Jackson 2001;Balogh-Brunstad et al 2008;Stanchi et al 2012;Bonifacio et al 2013).…”

Section: No Damaged Forests Need Managementmentioning

confidence: 99%

Combined forest and soil management after a catastrophic event

et al. 2020

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At the end of October 2018, a storm of unprecedented strength severely damaged the forests of the eastern sector of the Italian Alps. The affected forest area covers 42,500 ha. The president of one of the damaged regions asked for help from the University of Padua. After eight months of discussion, the authors of this article wrote a consensus text. The sometimes asper debate brought to light some crucial aspects: 1) even experienced specialists may have various opinions based on scientific knowledge that lead to conflicting proposals for action. For some of them there is evidence that to restore a destroyed natural environment it is more judicious to do nothing; 2) the soil corresponds to a living structure and every ecosystem’s management should be based on it; 3) faced with a catastrophe, people and politicians find themselves unarmed, also because they rarely have the scientific background to understand natural processes. Yet politicians are the only persons who make the key decisions that drive the economy in play and therefore determine the near future of our planet. This article is an attempt to respond directly to a governor with a degree in animal production science, who formally and prudently asked a university department called “Land, Environment, Agriculture and Forestry” for help before taking decisions; 4) the authors also propose an artistic interpretation of facts (uncontrolled storm) and conclusions (listen to the soil). Briefly, the authors identify the soil as an indispensable source for the renewal of the destroyed forest, give indications on how to prepare a map of the soils of the damaged region, and suggest to anchor on this soil map a series of silvicultural and soil management actions that will promote the soil conservation and the faster recovery of the natural dynamic stability and resilience.

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“…Amphibolite, serpentinite, and phyllite are known to be parent rocks originating poorly developed soils under different environmental conditions (e.g., [43][44][45][46]). In contrast, under many climatic regimes granite often originates Inceptisols (e.g., [47]).…”

Section: Morphology and General Properties Of The Selected Soilsmentioning

confidence: 99%

Chemical and Biochemical Properties of Soils Developed from Different Lithologies in Northwestern Spain (Galicia)

Cardelli

Cocco

Agnelli

et al. 2017

Forests

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Physical and chemical soil properties are generally correlated with the parent material, as its composition may influence the pedogenetic processes, the content of nutrients, and the element biocycling. This research studied the chemical and biochemical properties of the A horizon from soils developed on different rocks like amphibolite, serpentinite, phyllite, and granite under a relatively similar climatic regime from Galicia (northwest Spain). In particular, the effect of the parent material on soil evolution, organic carbon sequestration, and the hormone-like activity of humic and fulvic acids were tested. Results indicated that all the soils were scarcely fertile because of low concentrations of available P, exchangeable Ca (except for the soils on serpentinite and phyllite), and exchangeable K, but sequestered relevant quantities of organic carbon. The scarce soil fertility was common to all soils independently of the parent material, and we attributed this similarity to the pedogenetic pressure induced by the climatic conditions. Also, the hormone-like activity of humic and fulvic acids, similar for all the soils, was probably due to pedogenesis. We hypothesized that the hormone-like activity of the humic substances helps growth and diffusion of vegetation in low fertile soils and, consequently, soil organic carbon sequestration too.

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Influence of serpentine abundance on the vertical distribution of available elements in soils

Abstract: Background and Aim: Biotic and abiotic factors contribute in shaping the distribution through the soil

Cited by 14 publications

References 50 publications

Characteristics of fragipan B horizons developed on different parent material in North-Western Italy

Characteristics of fragipan B horizons developed on different parent material in North-Western Italy

Combined forest and soil management after a catastrophic event

Chemical and Biochemical Properties of Soils Developed from Different Lithologies in Northwestern Spain (Galicia)

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