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@ARTICLE{Siebers:844593,
      author       = {Siebers, Nina and Bauke, Sara L. and Tamburini, Federica
                      and Amelung, Wulf},
      title        = {{S}hort-term impacts of forest clear-cut on {P}
                      accessibility in soil microaggregates: {A}n oxygen isotope
                      study},
      journal      = {Geoderma},
      volume       = {315},
      issn         = {0016-7061},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2018-01997},
      pages        = {59 - 64},
      year         = {2018},
      abstract     = {Forest clear-cuts may have severe effects on the soil
                      structure and related nutrient cycling, though with yet
                      unknown consequences for nutrient pools such as phosphorus
                      (P) within microaggregates. We sampled the bulk mineral
                      topsoil prior to clear cut as well as 1 and 2 years
                      thereafter from the experimental forest site Wüstebach,
                      Germany, and we assessed the degree of oxygen isotope
                      exchange in HCl-extractable soil phosphate of two
                      microaggregate size fractions (< 20 μm, 20–250 μm) after
                      incubating soil with 18O-labeled water. We found that after
                      the clear-cut, microaggregate phosphates exchanged
                      significantly more oxygen with the incubation water than
                      before clear cut. One and two years after clear cut, the
                      respective δ18O values of soil phosphates (δ18OP,HCl) were
                      elevated by 16 and $38\%$ (< 20 μm) and by 43 and $53\%$
                      (20–250 μm) than before the clear-cut, respectively,
                      indicating that additional microaggregate P had been made
                      available to biological P cycling. The degree of oxygen
                      exchange after the clear-cut was significantly greater in
                      larger soil microaggregates than in the smaller sized ones,
                      reflecting that also at microaggregate level size controlled
                      the increase in the bioavailability of P with changes in
                      land management.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000424178600007},
      doi          = {10.1016/j.geoderma.2017.11.024},
      url          = {https://juser.fz-juelich.de/record/844593},
}