Plant-soil distribution of potentially toxic elements in response to elevated atmospheric CO2

Benjamin D. Duval, Paul Dijkstra, Susan M. Natali, J. Patrick Megonigal, Michael E Ketterer, Bert G. Drake, Manuel T. Lerdau, Gwyneth Gordon, Ariel D. Anbar, Bruce A Hungate

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The 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.

Original languageEnglish (US)
Pages (from-to)2570-2574
Number of pages5
JournalEnvironmental Science and Technology
Volume45
Issue number7
DOIs
StatePublished - Apr 1 2011

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Poisons
Ecosystems
Impurities
Soils
pollutant
soil
ecosystem
Nutrients
Biomass
Biogeochemistry
nutrient
biomass
biogeochemistry
ecosystem service
Biological materials
sandy soil
Toxicity
distribution
environmental change
Animals

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Plant-soil distribution of potentially toxic elements in response to elevated atmospheric CO2. / Duval, Benjamin D.; Dijkstra, Paul; Natali, Susan M.; Megonigal, J. Patrick; Ketterer, Michael E; Drake, Bert G.; Lerdau, Manuel T.; Gordon, Gwyneth; Anbar, Ariel D.; Hungate, Bruce A.

In: Environmental Science and Technology, Vol. 45, No. 7, 01.04.2011, p. 2570-2574.

Research output: Contribution to journalArticle

Duval, Benjamin D. ; Dijkstra, Paul ; Natali, Susan M. ; Megonigal, J. Patrick ; Ketterer, Michael E ; Drake, Bert G. ; Lerdau, Manuel T. ; Gordon, Gwyneth ; Anbar, Ariel D. ; Hungate, Bruce A. / Plant-soil distribution of potentially toxic elements in response to elevated atmospheric CO2. In: Environmental Science and Technology. 2011 ; Vol. 45, No. 7. pp. 2570-2574.
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AU - Drake, Bert G.

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