Microbial activity and diversity during extreme freeze–thaw cycles in periglacial soils, 5400 m elevation, Cordillera Vilcanota, Perú

@article{Schmidt2009MicrobialAA,
  title={Microbial activity and diversity during extreme freeze–thaw cycles in periglacial soils, 5400 m elevation, Cordillera Vilcanota, Per{\'u}},
  author={Steve Schmidt and Diana R. Nemergut and Amy E. Miller and Kristen R Freeman and Andrew J King and Anton Seimon},
  journal={Extremophiles},
  year={2009},
  volume={13},
  pages={807-816}
}
High-elevation periglacial soils are among the most extreme soil systems on Earth and may be good analogs for the polar regions of Mars where oligotrophic mineral soils abut with polar ice caps. Here we report on preliminary studies carried out during an expedition to an area where recent glacial retreat has exposed porous mineral soils to extreme, daily freeze–thaw cycles and high UV fluxes. We used in situ methods to show that inorganic nitrogen (NO3 − and NH4 +) was being actively cycled… CONTINUE READING
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