Gas chromatography and photoacoustic spectroscopy for the assessment of soil greenhouse gases emissions

Nicoloso, Rodrigo da Silveira; Bayer, Cimélio; Denega, Genuir Luis; Oliveira, P. A. V. de; Higarashi, M. M.; Corrêa, Juliano Corulli; Lopes, L. dos S.

doi:10.1590/s0103-84782013000200012

Cited by 20 publications

(13 citation statements)

References 15 publications

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“…The comparison of CO 2 and N 2 O emission rates measured by IRGA and PGA was very strongly correlated with GC measurements, an observation also reported by other authors (Pumpanen et al 2004;Iqbal et al 2013;Nicoloso et al 2013;Tirol-Padre et al 2014). In particular, the same trend was observed for both gas fluxes measured in the Cambisol and Haploxerert, which were characterized by different patterns of CO 2 and N 2 O emissions.…”

Section: Comparison Between Gas Flux Measurement Techniquessupporting

confidence: 88%

“…Similar results to those observed in the present experiment were found for N 2 O fluxes by Iqbal et al (2013), who reported slightly higher emissions with PGA than with GC (+5%), However, by contrast, we did not find any difference in CO 2 flux measurements when comparing PGA and GC. Nicoloso et al (2013) observed an overestimation of 18.6 and 13.6% compared PGA to GC, for CO 2 and N 2 O, respectively; we did not find any differences between the techniques, which may have been due to the lower gas concentrations measured during our experiment. That also defined the positive effect of the compensation against water vapour and cross interference, the two main sources of interference on measurement, during the experiments.…”

Section: Comparison Between Gas Flux Measurement Techniquescontrasting

confidence: 52%

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

et al. 2017

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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 analyser (IRGA) and a 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 measurement approaches involving IRGA and PGA analyses in studies of this type. The unamended Cambisol released 286% more CO 2 and 30% more N 2 O than the Haploxerert. Addition of plant residues increased CO 2 emissions more in the Haploxerert than Cambisol and N 2 O 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 implication management of plant residues in different soil types.

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Section: Comparison Between Gas Flux Measurement Techniquessupporting

confidence: 88%

Section: Comparison Between Gas Flux Measurement Techniquescontrasting

confidence: 52%

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

et al. 2017

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“…The syringes were stored in a cooler and analysed within 3 h after collection. The samples were injected in an INNOVA 1412 gas analyser (Lumasense Technologies, Denmark) where the content of CO 2 in the air samples was assessed by photoacoustic infrared spectroscopy (Yamulki and Jarvis, 1999;Nicoloso et al, 2013).…”

Section: Gas Sampling and Analysismentioning

confidence: 99%

Short-term carbon dioxide emission under contrasting soil disturbance levels and organic amendments

Grave

Nicoloso²,

Cassol

et al. 2015

Soil and Tillage Research

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A B S T R A C TAgriculture can be either a source or sink of atmospheric CO 2 depending on soil management. The application of swine slurry in conventional tilled soils could enhance soil CO 2 emission depleting soil organic C stocks. However, the use of recalcitrant C-rich organic fertilizers in no-till soils can offset soil CO 2 emission promoting soil C sequestration. This hypothesis was tested by evaluating short-term CO 2 -C emissions from a Rhodic Nitisol under contrasting soil disturbance levels (disturbed (DS) and undisturbed soil (US)) top-dressed with mineral or organic fertilizers (urea (UR), raw swine slurry (RS), anaerobically digested swine slurry (ADS), and composted swine slurry (CS)). Soil CO 2 emission was evaluated for 64 days using static chambers where gas samples were collected and analysed by photoacoustic infrared spectroscopy. Soil water-filled pore space (WFPS), temperature and meteorological data were concomitantly registered and a first-order exponential decay model was used to assess the decomposition of organic fertilizers and CO 2 emissions induced by soil disturbance. Soil CO 2 -C emission was correlated with soil temperature, while limiting soil aeration impaired CO 2 -C efflux when WFPS >0.6 cm 3 cm À3 . Disturbance increased soil CO 2 -C efflux (36.3 AE 2.2 kg CO 2 -C ha À1 day À1 ) in relation to US (33.3 AE 1.6 kg CO 2 -C ha À1 day À1 ). Extra labile C input through RS amendment induced an increased soil CO 2 -C efflux for a longer period (t 1/2 = 16.9 and 9.6 days in DS and US treatments, respectively), resulting in higher CO 2 -C emissions than soil amended with other fertilizers. The recalcitrant C input by ADS and CS had limited effect on soil CO 2 -C emissions. CS presented a genuine potential for substantial soil organic C accumulation while offsetting increased CO 2 -C emissions in comparison to RS amended soils.

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“…Currently applied systems to monitor CO 2 concentrations from agricultural facilities include Photo Acoustic Spectroscope (PAS) Gas Analyzer [4,6,18,19,20,21,22,23,24,25]; and the Open-Path laser (OP-laser) [26,27,28,29,30]. The OP-laser and PAS analyzer have been extensively used by researchers seeking to monitor emissions from livestock barns in the last years, mostly mechanically ventilated.…”

Section: Introductionmentioning

confidence: 99%

NDIR Gas Sensor for Spatial Monitoring of Carbon Dioxide Concentrations in Naturally Ventilated Livestock Buildings

Mendes

Ogink

Edouard

et al. 2015

Sensors

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The tracer gas ratio method, using CO2 as natural tracer, has been suggested as a pragmatic option to measure emissions from naturally ventilated (NV) barns without the need to directly estimate the ventilation rate. The aim of this research was to assess the performance of a low-cost Non-Dispersive Infra-Red (NDIR) sensor for intensive spatial field monitoring of CO2 concentrations in a NV dairy cow house. This was achieved by comparing NDIR sensors with two commonly applied methods, a Photo-Acoustic Spectroscope (PAS) Gas Monitor and an Open-Path laser (OP-laser). First, calibrations for the NDIR sensors were obtained in the laboratory. Then, the NDIR sensors were placed in a dairy cow barn for comparison with the PAS and OP-laser methods. The main conclusions were: (a) in order to represent the overall barn CO2 concentration of the dairy cow barn, the number of NDIR sensors to be accounted for average concentration calculation was dependent on barn length and on barn area occupation; and (b) the NDIR CO2 sensors are suitable for multi-point monitoring of CO2 concentrations in NV livestock barns, being a feasible alternative for the PAS and the OP-laser methods to monitor single-point or averaged spatial CO2 concentrations in livestock barns.

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Gas chromatography and photoacoustic spectroscopy for the assessment of soil greenhouse gases emissions

Cited by 20 publications

References 15 publications

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

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

Short-term carbon dioxide emission under contrasting soil disturbance levels and organic amendments

NDIR Gas Sensor for Spatial Monitoring of Carbon Dioxide Concentrations in Naturally Ventilated Livestock Buildings

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