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@ARTICLE{Polain:857092,
      author       = {Polain, Katherine and Guppy, Christopher and Knox, Oliver
                      and Lisle, leanne and Wilson, Brian and Osanai, Yui and
                      Siebers, Nina},
      title        = {{D}etermination of {A}gricultural {I}mpact on {S}oil
                      {M}icrobial {A}ctivity {U}singδ18{OP} {HC}l and
                      {R}espiration {E}xperiments},
      journal      = {ACS earth and space chemistry},
      volume       = {2},
      number       = {7},
      issn         = {2472-3452},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {FZJ-2018-06346},
      pages        = {683-691},
      year         = {2018},
      abstract     = {Improved understanding of microbial activity and associated
                      nutrient cycling in agricultural systems is required to
                      maximize production while maintaining and improving soil
                      fertility. We compared past and current microbial activity
                      using the stable δ18OP HCl pool and respiration incubations
                      under crop and native systems to a depth of 1 m. Contrary to
                      current understanding, agricultural practices have not
                      decreased microbial activity in our crop system. Differences
                      in average δ18OP HCl signatures between land use systems,
                      indicated higher past microbial activity in the entire soil
                      profile under the crop system (13.7‰) compared to the
                      native system soil profile (11.0‰), while current
                      microbial activity was double under the crop system,
                      especially between 15 and 100 cm. Evenly distributed
                      microbial activity in the top and subsoils of the crop
                      system, as well as an increase of biomass in the native
                      system subsoil, highlight the importance of investigating
                      microbial dynamics beyond the top 0–30 cm of the soil
                      profile. In these relatively dry, carbon and nutrient poor
                      Australian soils, the influence of water is perhaps the key
                      to explaining our results.},
      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:000439662900004},
      doi          = {10.1021/acsearthspacechem.8b00021},
      url          = {https://juser.fz-juelich.de/record/857092},
}