A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve

Mark H. Garnett; Iain P. Hartley; David W. Hopkins; Martin Sornmerkorn; Philip Wookey

doi:10.1016/j.soilbio.2009.03.024

A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve

Mark H. Garnett, Iain P. Hartley, David W. Hopkins, Martin Sornmerkorn, Philip Wookey

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Radiocarbon analysis Of Soil CO2 can provide information on the age, source and turnover rate of soil organic C. We developed a new method for passively trapping respired CO2 on molecular sieve, allowing it to be returned to the laboratory and recovered for C isotope analysis. We tested the method on a soil at a grassland site, and using a synthetic soil created to provide a contrasting isotopic signature. As with other passive sampling techniques, a small amount of fractionation of the C-13 isotope occurs during sampling, which we have quantified, otherwise the results show that the molecular sieve traps a sufficiently large and representative sample Of CO2 for C isotope analysis. Since C-14 results are routinely corrected for mass-dependent fractionation, our results show that passive sampling of soil respiration using molecular sieve offers a reliable method to collect soil-respired CO2 for C-14 analysis. (C) 2009 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1450-1456
Number of pages	7
Journal	Soil Biology and Biochemistry
Volume	41
Issue number	7
DOIs	https://doi.org/10.1016/j.soilbio.2009.03.024
Publication status	Published - Jul 2009

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10.1016/j.soilbio.2009.03.024

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title = "A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve",

abstract = "Radiocarbon analysis Of Soil CO2 can provide information on the age, source and turnover rate of soil organic C. We developed a new method for passively trapping respired CO2 on molecular sieve, allowing it to be returned to the laboratory and recovered for C isotope analysis. We tested the method on a soil at a grassland site, and using a synthetic soil created to provide a contrasting isotopic signature. As with other passive sampling techniques, a small amount of fractionation of the C-13 isotope occurs during sampling, which we have quantified, otherwise the results show that the molecular sieve traps a sufficiently large and representative sample Of CO2 for C isotope analysis. Since C-14 results are routinely corrected for mass-dependent fractionation, our results show that passive sampling of soil respiration using molecular sieve offers a reliable method to collect soil-respired CO2 for C-14 analysis. (C) 2009 Elsevier Ltd. All rights reserved.",

author = "Garnett, {Mark H.} and Hartley, {Iain P.} and Hopkins, {David W.} and Martin Sornmerkorn and Philip Wookey",

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T1 - A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve

AU - Garnett, Mark H.

AU - Hartley, Iain P.

AU - Hopkins, David W.

AU - Sornmerkorn, Martin

AU - Wookey, Philip

PY - 2009/7

Y1 - 2009/7

N2 - Radiocarbon analysis Of Soil CO2 can provide information on the age, source and turnover rate of soil organic C. We developed a new method for passively trapping respired CO2 on molecular sieve, allowing it to be returned to the laboratory and recovered for C isotope analysis. We tested the method on a soil at a grassland site, and using a synthetic soil created to provide a contrasting isotopic signature. As with other passive sampling techniques, a small amount of fractionation of the C-13 isotope occurs during sampling, which we have quantified, otherwise the results show that the molecular sieve traps a sufficiently large and representative sample Of CO2 for C isotope analysis. Since C-14 results are routinely corrected for mass-dependent fractionation, our results show that passive sampling of soil respiration using molecular sieve offers a reliable method to collect soil-respired CO2 for C-14 analysis. (C) 2009 Elsevier Ltd. All rights reserved.

AB - Radiocarbon analysis Of Soil CO2 can provide information on the age, source and turnover rate of soil organic C. We developed a new method for passively trapping respired CO2 on molecular sieve, allowing it to be returned to the laboratory and recovered for C isotope analysis. We tested the method on a soil at a grassland site, and using a synthetic soil created to provide a contrasting isotopic signature. As with other passive sampling techniques, a small amount of fractionation of the C-13 isotope occurs during sampling, which we have quantified, otherwise the results show that the molecular sieve traps a sufficiently large and representative sample Of CO2 for C isotope analysis. Since C-14 results are routinely corrected for mass-dependent fractionation, our results show that passive sampling of soil respiration using molecular sieve offers a reliable method to collect soil-respired CO2 for C-14 analysis. (C) 2009 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.soilbio.2009.03.024

DO - 10.1016/j.soilbio.2009.03.024

M3 - Article

SN - 0038-0717

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SP - 1450

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JO - Soil Biology and Biochemistry

JF - Soil Biology and Biochemistry

IS - 7

ER -

A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve

Abstract

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