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@ARTICLE{Oelmann:15534,
      author       = {Oelmann, Y. and Buchmann, N. and Gleixner, G. and Habekost,
                      M. and Rocher, S. and Rosenkranz, S. and Schulze, E.-D. and
                      Steinbeiss, S. and Temperton, V.M. and Weigelt, A. and
                      Weisser, W.W. and Wilcke, W.},
      title        = {{P}lant diversity effects on aboveground and belowground
                      {N} pools in temperate grassland ecosystems: {D}evelopment
                      in the first 5 years after establishment},
      journal      = {Global biogeochemical cycles},
      volume       = {25},
      issn         = {0886-6236},
      address      = {Washington, DC},
      publisher    = {AGU},
      reportid     = {PreJuSER-15534},
      pages        = {1 - 11},
      year         = {2011},
      note         = {We thank the many people who helped with the management of
                      the experiment and the many student helpers to all the
                      helpers who assisted during the weeding campaigns. The Jena
                      Experiment is funded by the Deutsche Forschungsgemeinschaft
                      (DFG, FOR 456), with additional support from the Friedrich
                      Schiller University of Jena and the Max Planck Society.},
      abstract     = {Biodiversity is expected to improve ecosystem services, e.
                      g., productivity or seepage water quality. The current view
                      of plant diversity effects on element cycling is based on
                      short-term grassland studies that discount possibly slow
                      belowground feedbacks to aboveground diversity. Furthermore,
                      these grasslands were established on formerly arable land
                      associated with changes in soil properties, e. g.,
                      accumulation of organic matter. We hypothesize that the
                      plant diversity-N cycle relationship changes with time since
                      establishment. We assessed the relationship between plant
                      diversity and (1) aboveground and soil N storage and (2)
                      NO3-N and NH4-N availability in soil between 2003 and 2007
                      in the Jena Experiment, a grassland experiment established
                      in 2002 in which the number of plant species varied from 1
                      to 60. The positive effect of plant diversity on aboveground
                      N storage (mainly driven by biomass production) tended to
                      increase through time. The initially negative correlation
                      between plant diversity and soil NO3-N availability
                      disappeared after 2003. In 2006 and 2007, a positive
                      correlation between plant diversity and soil NH4-N
                      availability appeared which coincided with a positive
                      correlation between plant diversity and N mineralized from
                      total N accumulated in soil. We conclude that the plant
                      diversity-N cycle relationship in newly established
                      grasslands changes with time because of accumulation of
                      organic matter in soil associated with the establishment.
                      While a positive relationship between plant diversity and
                      soil N storage improves soil fertility and reduces
                      fertilizing needs, increasingly closed N cycling with
                      increasing plant diversity as illustrated by decreased NO3-N
                      concentrations in diverse mixtures reduces the negative
                      impact of agricultural N leaching on groundwater resources.},
      keywords     = {J (WoSType)},
      cin          = {IBG-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences / Geosciences, Multidisciplinary /
                      Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000291101100002},
      doi          = {10.1029/2010GB003869},
      url          = {https://juser.fz-juelich.de/record/15534},
}