A cost-effective method for reducing soil disturbance-induced errors in static chamber measurement of wetland methane emissions
dc.contributor.author | Winton, RS | |
dc.contributor.author | Richardson, CJ | |
dc.date.accessioned | 2017-11-01T14:07:46Z | |
dc.date.available | 2017-11-01T14:07:46Z | |
dc.date.issued | 2016-08-01 | |
dc.description.abstract | © 2015, Springer Science+Business Media Dordrecht. Static chambers used for sampling methane (CH 4 ) in wetlands are highly sensitive to soil disturbance. Temporary compression around chambers during sampling can inflate the initial chamber CH 4 headspace concentration and/or lead to generation of non-linear, unreliable flux estimates that must be discarded. In this study, we tested an often-used rubber gasket (RG)-sealed static chamber against a water-filled gutter (WFG) seal design that could be set up and sampled from a distance of 2 m with a newly designed remote rod sampling system to reduce soil disturbance. Compared to conventional RG design, our remotely sampled static chambers reduced the chance of detecting inflated initial CH 4 concentrations ( > 3.6 ppm) from 66 to 6 % and nearly doubled the proportion of robust linear regressions (r 2 > 0.9) from 45 to 86 %. Importantly, the remote rod sampling system allows for more accurate and reliable CH 4 sampling without costly boardwalk construction. This paper presents results demonstrating that the remote rod sampling system combined with WFG static chambers improves CH 4 data reliability by reducing initial gas measurement variability due to chamber disturbance when tested on a mineral soil-restored wetland in Charles City County, Virginia, USA. | |
dc.identifier.eissn | 1572-9834 | |
dc.identifier.issn | 0923-4861 | |
dc.identifier.uri | ||
dc.publisher | Springer Science and Business Media LLC | |
dc.relation.ispartof | Wetlands Ecology and Management | |
dc.relation.isversionof | 10.1007/s11273-015-9468-5 | |
dc.title | A cost-effective method for reducing soil disturbance-induced errors in static chamber measurement of wetland methane emissions | |
dc.type | Journal article | |
pubs.begin-page | 419 | |
pubs.end-page | 425 | |
pubs.issue | 4 | |
pubs.organisational-group | Duke | |
pubs.organisational-group | Environmental Sciences and Policy | |
pubs.organisational-group | Marine Science and Conservation | |
pubs.organisational-group | Nicholas School of the Environment | |
pubs.publication-status | Published | |
pubs.volume | 24 |
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