Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar

The effect of biochar addition on the levels of black carbon (BC) and polcyclic aromatic hydrocarbons (PAHs) in a vineyard soil in central Italy was investigated within a two year period. Hydropyrolysis (HyPy) was used to determine the contents of BC (BCHyPy) in the amended and control soils while t...

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Main Authors: Rombolà, Alessandro G., Meredith, Will, Baronti, Silvia, Snape, Colin E., Genesio, Lorenzo, Vaccari, Francesco Primo, Miglietta, Franco, Fabbri, Daniele
Format: Article
Published: ACS Publications 2015
Online Access:https://eprints.nottingham.ac.uk/31931/
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author Rombolà, Alessandro G.
Meredith, Will
Baronti, Silvia
Snape, Colin E.
Genesio, Lorenzo
Vaccari, Francesco Primo
Miglietta, Franco
Fabbri, Daniele
author_facet Rombolà, Alessandro G.
Meredith, Will
Baronti, Silvia
Snape, Colin E.
Genesio, Lorenzo
Vaccari, Francesco Primo
Miglietta, Franco
Fabbri, Daniele
author_sort Rombolà, Alessandro G.
building Nottingham Research Data Repository
collection Online Access
description The effect of biochar addition on the levels of black carbon (BC) and polcyclic aromatic hydrocarbons (PAHs) in a vineyard soil in central Italy was investigated within a two year period. Hydropyrolysis (HyPy) was used to determine the contents of BC (BCHyPy) in the amended and control soils while the hydrocarbon composition of the semi-labile (non-BCHyPy) fraction released by HyPy was determined by gas chromatography-mass spectrometry, together with the solvent-extractable PAHs. The concentrations of these three polycyclic aromatic carbon reservoirs, changed and impacted differently on the soil organic carbon over the period of the trial. The addition of biochar (33 ton dry biochar ha-1) gave rise to a sharp increase in soil organic carbon which could be accounted for by an increase of BCHyPy. Over time, the concentration of BCHyPy decreased significantly from 36 to 23 mg g-1, and as a carbon percentage from 79% to 61%. No clear time trends were observed for the non-BCHyPy PAHs varying from 39 to 34 µg g-1 in treated soils, not significantly different from control soils. However, the concentrations of extractable PAHs increased markedly in the amended soils, and decreased with time from 153 to 78 ng g-1 remaining always higher than those in untreated soil. The extent of the BCHyPy loss was more compatible with physical rather than chemical processes.
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spelling nottingham-319312020-05-04T17:15:18Z https://eprints.nottingham.ac.uk/31931/ Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar Rombolà, Alessandro G. Meredith, Will Baronti, Silvia Snape, Colin E. Genesio, Lorenzo Vaccari, Francesco Primo Miglietta, Franco Fabbri, Daniele The effect of biochar addition on the levels of black carbon (BC) and polcyclic aromatic hydrocarbons (PAHs) in a vineyard soil in central Italy was investigated within a two year period. Hydropyrolysis (HyPy) was used to determine the contents of BC (BCHyPy) in the amended and control soils while the hydrocarbon composition of the semi-labile (non-BCHyPy) fraction released by HyPy was determined by gas chromatography-mass spectrometry, together with the solvent-extractable PAHs. The concentrations of these three polycyclic aromatic carbon reservoirs, changed and impacted differently on the soil organic carbon over the period of the trial. The addition of biochar (33 ton dry biochar ha-1) gave rise to a sharp increase in soil organic carbon which could be accounted for by an increase of BCHyPy. Over time, the concentration of BCHyPy decreased significantly from 36 to 23 mg g-1, and as a carbon percentage from 79% to 61%. No clear time trends were observed for the non-BCHyPy PAHs varying from 39 to 34 µg g-1 in treated soils, not significantly different from control soils. However, the concentrations of extractable PAHs increased markedly in the amended soils, and decreased with time from 153 to 78 ng g-1 remaining always higher than those in untreated soil. The extent of the BCHyPy loss was more compatible with physical rather than chemical processes. ACS Publications 2015-08-11 Article PeerReviewed Rombolà, Alessandro G., Meredith, Will, Baronti, Silvia, Snape, Colin E., Genesio, Lorenzo, Vaccari, Francesco Primo, Miglietta, Franco and Fabbri, Daniele (2015) Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar. Environmental Science & Technology, 49 (18). pp. 11037-11044. ISSN 1520-5851 http://pubs.acs.org/doi/10.1021/acs.est.5b02562 doi:10.1021/acs.est.5b02562 doi:10.1021/acs.est.5b02562
spellingShingle Rombolà, Alessandro G.
Meredith, Will
Baronti, Silvia
Snape, Colin E.
Genesio, Lorenzo
Vaccari, Francesco Primo
Miglietta, Franco
Fabbri, Daniele
Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
title Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
title_full Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
title_fullStr Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
title_full_unstemmed Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
title_short Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
title_sort fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar
url https://eprints.nottingham.ac.uk/31931/
https://eprints.nottingham.ac.uk/31931/
https://eprints.nottingham.ac.uk/31931/