Calculating the detection limits of chamber-based soil greenhouse gas flux measurements

Journal of Environmental Quality
T B ParkinS K Hargreaves

Abstract

Renewed interest in quantifying greenhouse gas emissions from soil has led to an increase in the application of chamber-based flux measurement techniques. Despite the apparent conceptual simplicity of chamber-based methods, nuances in chamber design, deployment, and data analyses can have marked effects on the quality of the flux data derived. In many cases, fluxes are calculated from chamber headspace vs. time series consisting of three or four data points. Several mathematical techniques have been used to calculate a soil gas flux from time course data. This paper explores the influences of sampling and analytical variability associated with trace gas concentration quantification on the flux estimated by linear and nonlinear models. We used Monte Carlo simulation to calculate the minimum detectable fluxes (α = 0.05) of linear regression (LR), the Hutchinson/Mosier (H/M) method, the quadratic method (Quad), the revised H/M (HMR) model, and restricted versions of the Quad and H/M methods over a range of analytical precisions and chamber deployment times (DT) for data sets consisting of three or four time points. We found that LR had the smallest detection limit thresholds and was the least sensitive to analytical precision and ...Continue Reading

References

Mar 1, 1997·Agronomy Journal·S W WagnerR S Alessi
Jan 6, 2010·Journal of Environmental Quality·Rodney T Venterea

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Citations

Nov 14, 2014·Critical Reviews in Analytical Chemistry·Enzhu HuMarkus Tuller
Aug 21, 2016·The Science of the Total Environment·P A TurnerR T Venterea
May 2, 2018·Journal of the Air & Waste Management Association·Colin L Y Wong
Oct 20, 2017·Environmental Science and Pollution Research International·Ben W ThomasXiying Hao
Nov 13, 2013·Journal of Environmental Quality·Christopher W RogersTrenton L Roberts
Aug 8, 2017·Journal of Environmental Quality·Ben W Thomas, Xiying Hao
Oct 6, 2020·Journal of Environmental Quality·Rodney T VentereaTimothy B Parkin
Oct 6, 2020·Journal of Environmental Quality·Cecile A M de KleinRodney T Venterea
Aug 8, 2017·Journal of Environmental Quality·Katherine L TullyTodd S Rosenstock
Jun 27, 2019·Environmental Management·Laurel GutenbergChenyang Xu
Nov 13, 2013·Journal of Environmental Quality·J AbubakerM Pell
Jan 21, 2015·Journal of Environmental Quality·Maegen B SimmondsBruce A Linquist
Oct 6, 2020·Journal of Environmental Quality·Noemí Mateo-MarínDolores Quílez
Nov 30, 2016·Journal of Environmental Quality·Fabián G FernándezKarina P Fabrizzi
Jun 5, 2018·Journal of Environmental Quality·Kristopher L NicholsKeith H Paustian
Jan 21, 2015·Journal of Environmental Quality·William R OsterholzJoshua L Posner
Oct 6, 2020·Journal of Environmental Quality·Timothy J CloughRachel E Thorman
Dec 23, 2017·The Science of the Total Environment·I WanyamaM C Rufino
Nov 7, 2020·Journal of Environmental Quality·Thandile MdlambuziPardon Muchaonyerwa
Jul 30, 2020·Journal of Environmental Management·Michalis OmirouIoannis M Ioannides

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