Plant-Soil Distribution of Potentially Toxic Elements in Response to Elevated Atmospheric CO2

dc.contributor.authorDuval, Benjamin D.
dc.contributor.authorDijkstra, Paul
dc.contributor.authorNatali, Susan M.
dc.contributor.authorMegonigal, J. Patrick
dc.contributor.authorKetterer, Michael E.
dc.contributor.authorDrake, Bert G.
dc.contributor.authorLerdau, Manuel T.
dc.contributor.authorGordon, Gwyneth
dc.contributor.authorAnbar, Ariel D.
dc.contributor.authorHungate, Bruce A.
dc.date.accessioned2012-03-20T12:32:36Z
dc.date.available2012-03-20T12:32:36Z
dc.date.issued2011
dc.description.abstractThe distribution of contaminant elements within ecosystems is an environmental concern because of these elements' potential toxicity to animals and plants and their ability to hinder microbial ecosystem services. As with nutrients, contaminants are cycled within and through ecosystems. Elevated atmospheric CO2 generally increases plant productivity and alters nutrient element cycling, but whether CO2 causes similar effects on the cycling of contaminant elements is unknown. Here we show that 11 years of experimental CO2 enrichment in a sandy soil with low organic matter content causes plants to accumulate contaminants in plant biomass, with declines in the extractable contaminant element pools in surface soils. These results indicate that CO2 alters the distribution of contaminant elements in ecosystems, with plant element accumulation and declining soil availability both likely explained by the CO2 stimulation of plant biomass. Our results highlight the interdependence of element cycles and the importance of taking a broad view of the periodic table when the effects of global environmental change on ecosystem biogeochemistry are considered.
dc.format.extent2570–2574
dc.identifier0013-936X
dc.identifier.citationDuval, Benjamin D., Dijkstra, Paul, Natali, Susan M., Megonigal, J. Patrick, Ketterer, Michael E., Drake, Bert G., Lerdau, Manuel T., Gordon, Gwyneth, Anbar, Ariel D., and Hungate, Bruce A. 2011. "<a href="https://repository.si.edu/handle/10088/18201">Plant-Soil Distribution of Potentially Toxic Elements in Response to Elevated Atmospheric CO2</a>." <em>Environmental science & technology</em>, 45, (7) 2570–2574. <a href="https://doi.org/10.1021/es102250u">https://doi.org/10.1021/es102250u</a>.
dc.identifier.issn0013-936X
dc.identifier.urihttp://hdl.handle.net/10088/18201
dc.publisherAmerican Chemical Society
dc.relation.ispartofEnvironmental science & technology 45 (7)
dc.titlePlant-Soil Distribution of Potentially Toxic Elements in Response to Elevated Atmospheric CO2
dc.typearticle
sro.description.unitSERC
sro.identifier.doi10.1021/es102250u
sro.identifier.itemID100119
sro.identifier.refworksID9372
sro.identifier.urlhttps://repository.si.edu/handle/10088/18201
sro.publicationPlaceWashington; 1155 16th St, NW, Washington, DC 20036 USA

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