Mercury distribution across 14 U.S. Forests. Part I: spatial patterns of concentrations in biomass, litter, and soils.

  title={Mercury distribution across 14 U.S. Forests. Part I: spatial patterns of concentrations in biomass, litter, and soils.},
  author={Daniel Obrist and Dale W. Johnson and Steve E Lindberg and Yongming Luo and Oleksandra Hararuk and Rosvel Bracho and John J. Battles and David Bryan Dail and Robert Edmonds and Russell K. Monson and Scott V. Ollinger and Stephen Pallardy and Kurt S. Pregitzer and Donald E. Todd},
  journal={Environmental science & technology},
  volume={45 9},
Results from a systematic investigation of mercury (Hg) concentrations across 14 forest sites in the United States show highest concentrations in litter layers, strongly enriched in Hg compared to aboveground tissues and indicative of substantial postdepositional sorption of Hg. Soil Hg concentrations were lower than in litter, with highest concentrations in surface soils. Aboveground tissues showed no detectable spatial patterns, likely due to 17 different tree species present across sites… CONTINUE READING

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