An assessment of factors controlling N2O and CO2 emissions from crop residues using different measurement approaches

G Badagliacca, P Ruisi, RM Rees, S Saia

Research output: Contribution to journalArticle

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Abstract

Management of plant residues plays an important role in maintaining soil quality and nutrient availability for plants and microbes. However, there is considerable uncertainty regarding the factors controlling residue decomposition and their effects on greenhouse gas (GHG) emissions from the soil. This uncertainty is created both by the complexity of the processes involved and limitations in the methodologies commonly used to quantify GHG emissions. We therefore investigated the addition of two soil residues (durum wheat and faba bean) with similar C:N ratios but contrasting fibres, lignin and cellulose contents on nutrient dynamics and GHG emission from two contrasting soils: a low-soil organic carbon (SOC), high pH clay soil (Chromic Haploxerert) and a high-SOC, low pH sandy-loam soil (Eutric Cambisol). In addition, we compared the effectiveness of the use of an Infrared Gas Analyzer (IRGA) and Photoacoustic Gas Analyser (PGA) to measure GHG emissions with more conventional gas chromatography (GC). There was a strong correlation between the different measurement techniques which strengthens the case for the use of continuous measurements approaches involving IRGA and PGA analyses in studies of this type. The unamended Cambisol released 286% more CO2 and 30% more N2O than the Haploxerert. Addition of plant residues increased CO2 emissions more in the Haploxerert than Cambisol and N2O emission more in the Cambisol than in the Haploxerert. This may have been a consequence of the high N stabilization efficiency of the Haploxerert resulting from its high pH and the effect of the clay on mineralization of native organic matter. These results have implications management of plant residues in different soil types.
Original languageEnglish
Pages (from-to)1 - 8
Number of pages8
JournalBiology and Fertility of Soils
Volume53
Issue number5
Early online date13 Apr 2017
DOIs
Publication statusFirst published - 13 Apr 2017

Fingerprint

crop residue
Cambisol
plant residue
greenhouse gas
gas
soil
organic carbon
type of study
nutrient dynamics
sandy loam
soil quality
nutrient availability
clay soil
soil nutrient
lignin
cellulose
soil type
gas chromatography
stabilization
wheat

Bibliographical note

1020954

Keywords

  • Carbon dioxide
  • Crop residues
  • Greenhouse gas
  • Nitrous oxide
  • Residue decomposition

Cite this

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abstract = "Management of plant residues plays an important role in maintaining soil quality and nutrient availability for plants and microbes. However, there is considerable uncertainty regarding the factors controlling residue decomposition and their effects on greenhouse gas (GHG) emissions from the soil. This uncertainty is created both by the complexity of the processes involved and limitations in the methodologies commonly used to quantify GHG emissions. We therefore investigated the addition of two soil residues (durum wheat and faba bean) with similar C:N ratios but contrasting fibres, lignin and cellulose contents on nutrient dynamics and GHG emission from two contrasting soils: a low-soil organic carbon (SOC), high pH clay soil (Chromic Haploxerert) and a high-SOC, low pH sandy-loam soil (Eutric Cambisol). In addition, we compared the effectiveness of the use of an Infrared Gas Analyzer (IRGA) and Photoacoustic Gas Analyser (PGA) to measure GHG emissions with more conventional gas chromatography (GC). There was a strong correlation between the different measurement techniques which strengthens the case for the use of continuous measurements approaches involving IRGA and PGA analyses in studies of this type. The unamended Cambisol released 286{\%} more CO2 and 30{\%} more N2O than the Haploxerert. Addition of plant residues increased CO2 emissions more in the Haploxerert than Cambisol and N2O emission more in the Cambisol than in the Haploxerert. This may have been a consequence of the high N stabilization efficiency of the Haploxerert resulting from its high pH and the effect of the clay on mineralization of native organic matter. These results have implications management of plant residues in different soil types.",
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An assessment of factors controlling N2O and CO2 emissions from crop residues using different measurement approaches. / Badagliacca, G; Ruisi, P; Rees, RM; Saia, S.

In: Biology and Fertility of Soils, Vol. 53, No. 5, 13.04.2017, p. 1 - 8.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An assessment of factors controlling N2O and CO2 emissions from crop residues using different measurement approaches

AU - Badagliacca, G

AU - Ruisi, P

AU - Rees, RM

AU - Saia, S

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PY - 2017/4/13

Y1 - 2017/4/13

N2 - Management of plant residues plays an important role in maintaining soil quality and nutrient availability for plants and microbes. However, there is considerable uncertainty regarding the factors controlling residue decomposition and their effects on greenhouse gas (GHG) emissions from the soil. This uncertainty is created both by the complexity of the processes involved and limitations in the methodologies commonly used to quantify GHG emissions. We therefore investigated the addition of two soil residues (durum wheat and faba bean) with similar C:N ratios but contrasting fibres, lignin and cellulose contents on nutrient dynamics and GHG emission from two contrasting soils: a low-soil organic carbon (SOC), high pH clay soil (Chromic Haploxerert) and a high-SOC, low pH sandy-loam soil (Eutric Cambisol). In addition, we compared the effectiveness of the use of an Infrared Gas Analyzer (IRGA) and Photoacoustic Gas Analyser (PGA) to measure GHG emissions with more conventional gas chromatography (GC). There was a strong correlation between the different measurement techniques which strengthens the case for the use of continuous measurements approaches involving IRGA and PGA analyses in studies of this type. The unamended Cambisol released 286% more CO2 and 30% more N2O than the Haploxerert. Addition of plant residues increased CO2 emissions more in the Haploxerert than Cambisol and N2O emission more in the Cambisol than in the Haploxerert. This may have been a consequence of the high N stabilization efficiency of the Haploxerert resulting from its high pH and the effect of the clay on mineralization of native organic matter. These results have implications management of plant residues in different soil types.

AB - Management of plant residues plays an important role in maintaining soil quality and nutrient availability for plants and microbes. However, there is considerable uncertainty regarding the factors controlling residue decomposition and their effects on greenhouse gas (GHG) emissions from the soil. This uncertainty is created both by the complexity of the processes involved and limitations in the methodologies commonly used to quantify GHG emissions. We therefore investigated the addition of two soil residues (durum wheat and faba bean) with similar C:N ratios but contrasting fibres, lignin and cellulose contents on nutrient dynamics and GHG emission from two contrasting soils: a low-soil organic carbon (SOC), high pH clay soil (Chromic Haploxerert) and a high-SOC, low pH sandy-loam soil (Eutric Cambisol). In addition, we compared the effectiveness of the use of an Infrared Gas Analyzer (IRGA) and Photoacoustic Gas Analyser (PGA) to measure GHG emissions with more conventional gas chromatography (GC). There was a strong correlation between the different measurement techniques which strengthens the case for the use of continuous measurements approaches involving IRGA and PGA analyses in studies of this type. The unamended Cambisol released 286% more CO2 and 30% more N2O than the Haploxerert. Addition of plant residues increased CO2 emissions more in the Haploxerert than Cambisol and N2O emission more in the Cambisol than in the Haploxerert. This may have been a consequence of the high N stabilization efficiency of the Haploxerert resulting from its high pH and the effect of the clay on mineralization of native organic matter. These results have implications management of plant residues in different soil types.

KW - Carbon dioxide

KW - Crop residues

KW - Greenhouse gas

KW - Nitrous oxide

KW - Residue decomposition

U2 - 10.1007/s00374-017-1195-z

DO - 10.1007/s00374-017-1195-z

M3 - Article

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SP - 1

EP - 8

JO - Biology and Fertility of Soils

JF - Biology and Fertility of Soils

SN - 0178-2762

IS - 5

ER -