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Radon as a natural tracer of gas transport through trees

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dc.contributor.author Megonigal, J. Patrick en
dc.contributor.author Brewer, Paul E. en
dc.contributor.author Knee, Karen L. en
dc.date.accessioned 2019-11-05T03:01:50Z
dc.date.available 2019-11-05T03:01:50Z
dc.date.issued 2020
dc.identifier.citation Megonigal, J. Patrick, Brewer, Paul E., and Knee, Karen L. 2020. "<a href="https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.16292">Radon as a natural tracer of gas transport through trees</a>." <em>The New Phytologist</em>. 225 (4):1470&ndash;1475. <a href="https://doi.org/10.1111/nph.16292">https://doi.org/10.1111/nph.16292</a> en
dc.identifier.issn 1469-8137
dc.identifier.uri https://hdl.handle.net/10088/99370
dc.description.abstract Trees are sources, sinks, and conduits for gas exchange between the atmosphere and soil, and effectively link these terrestrial realms in a soil-plant-atmosphere continuum. We demonstrated that naturally produced 222 Rn gas has the potential to disentangle the biotic and physical processes that regulate gas transfer between soils or plants and the atmosphere in field settings where exogenous tracer applications are challenging. Patterns in stem radon emissions across tree species, seasons, and diurnal periods suggest that plant transport of soil gases is controlled by plant hydraulics, whether by diffusion or mass flow via transpiration. We establish for the first time that trees emit soil gases during the night when transpiration rates are negligible, suggesting that axial diffusion is an important and understudied mechanism of plant and soil gas transmission. en
dc.relation.ispartof The New Phytologist en
dc.title Radon as a natural tracer of gas transport through trees en
dc.type Journal Article en
dc.identifier.srbnumber 153013
dc.identifier.doi 10.1111/nph.16292
rft.jtitle The New Phytologist
rft.volume 225
rft.issue 4
rft.spage 1470
rft.epage 1475
dc.description.SIUnit SERC en
dc.citation.spage 1470
dc.citation.epage 1475
dc.relation.url https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.16292


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