Distribution of soil organic matter in freshwater emergent/open water wetlands in the Portland, Oregon metropolitan area

@article{Shaffer2009DistributionOS,
  title={Distribution of soil organic matter in freshwater emergent/open water wetlands in the Portland, Oregon metropolitan area},
  author={Paul W. Shaffer and Ted L. Ernst},
  journal={Wetlands},
  year={2009},
  volume={19},
  pages={505-516}
}
We measured soil organic matter (SOM) concentrations in a large sample (n=95) of freshwater emergent and open water wetlands in the Portland, Oregon, USA, area as part of a study of the ecological development of mitigation wetlands. Mean SOM concentrations were higher in naturally occurring wetlands (NOWs) than in mitigation wetlands (MWs) at 0–5 cm (SOM=9.75 and 5.83%, respectively, p=0.0001) and at 15–20 cm (SOM=6.85, 4.68%, p=0.0551). If temporal accumulation of SOM is occurring, it is slow… CONTINUE READING
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