Search results for "evaporitic deposits"

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Differenziazione e quantificazione dei carbonati litogenici e pedogenici di Gypsisuoli forestali attraverso l'analisi isotopica

2004

Gli autori riferiscono sui tipi e sui modelli di genesi dei carbonati dei suoli, attraverso l’uso degli isotopi del 13C. Lo studio è stato condotto in un’area dell’interno collinare argilloso siciliano, su suoli che evolvono sui depositi evaporitici della Serie Gessoso-Solfifera. Sono stati scelti cinque pedon su litotipi calcarei e non. I pedon sono stati descritti in campo e campionati secondo la sequenza degli orizzonti genetici; sui campioni di suolo sono state eseguite le seguenti analisi: tessitura, reazione, conducibilità elettrica, gesso, carbonio organico ed inorganico. Inoltre, parallelamente sono state eseguite le analisi isotopiche del carbonio organico ed inorganico. I risultat…

Authors report on forms and soil carbonate formation models as detected by 13C isotopes. This study was carried out in a clayey hilly area of central Sicily where soils have developed on evaporitic deposits of “Gessoso-Solfifera” Formation. Four pedons were selected both on calcareous and no calcareous lithotypes. Pedons were described in field and sampled according to sequence of genetic horizons. Soil samples were analyzed to investigate the following properties: particle size distribution reaction electrical conductivity gypsum organic and inorganic carbon. Moreover isotopic analyses were performed on organic and inorganic carbon. Results allow us to describe the complex relationships between biotic and abiotic soil components. In addition models of calcic horizon formation and their implication in soil classification were defined.Settore AGR/13 - Chimica Agraria
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Carbon stocks in a 50‑year‑oldEucalyptus camaldulensisstand in Sicily, Italy

2015

Eucalyptus stands in semi-arid areas may contribute to enhance carbon (C) stocks in both biomass and soil. However, the limited information available is mainly focused on short-rotation plantations. In this study, the above- and below-ground C pools in five 50-year-old Eucalyptus camaldulensis Dehnh. stands planted on Miocenic evaporitic deposits in Sicily, Italy, with a xeric and thermic pedoclimate, were measured. Above-ground biomass was determined by partitioning and weighing branches, stem and leaves. Below-ground C pools included the determination of litter, root biomass, and soil organic and inorganic C. In terms of the above-ground biomass, the E. camaldulensis stand accumulated on …

rootsbelow-ground biomassSettore AGR/05 - Assestamento Forestale E Selvicolturasemi-arid Mediterranean climateSettore AGR/13 - Chimica AgrariaBiomassDeserts and xeric shrublandssoillitterbelow-ground biomaabove-ground biomassTotal organic carbonevaporitic depositsSoil organic matterabove-ground biomass; below-ground biomass; evaporitic deposits; litter; roots; semi-arid Mediterranean climate; soil; ForestryForestrySoil classificationForestryrootEucalyptusevaporitic depositEucalyptus camaldulensisAgronomySettore AGR/14 - PedologiaLitterEnvironmental scienceabove-ground biomaSouthern Forests: a Journal of Forest Science
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