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@ARTICLE{Kooijman:888084,
      author       = {Kooijman, Annemieke and Morriën, Elly and Jagers op
                      Akkerhuis, Gerard and Missong, Anna and Bol, Roland and
                      Klumpp, Erwin and Hall, Rutger and Til, Mark and Kalbitz,
                      Karsten and Bloem, Jaap},
      title        = {{R}esilience in coastal dune grasslands: p{H} and soil
                      organic matter effects on {P} nutrition, plant strategies,
                      and soil communities},
      journal      = {Ecosphere},
      volume       = {11},
      number       = {5},
      issn         = {2150-8925},
      address      = {Ithaca, NY},
      publisher    = {ESA},
      reportid     = {FZJ-2020-04661},
      pages        = {e03112},
      year         = {2020},
      abstract     = {Soil organic matter (SOM) and pH are key ecosystem drivers,
                      influencing resilience to environmental change. We tested
                      the separate effects of pH and SOM on nutrient availability,
                      plant strategies, and soil community composition in
                      calcareous and acidic Grey dunes (H2130) with low,
                      intermediate, and/or high SOM, which differ in sensitivity
                      to high atmospheric N deposition. Soil organic matter was
                      mainly important for biomass parameters of plants, microbes,
                      and soil animals, and for microarthropod diversity and
                      network complexity. However, differences in pH led to
                      fundamental differences in P availability and plant
                      strategies, which overruled the normal soil community
                      patterns, and influenced resilience to N deposition. In
                      calcareous dunes with low grass‐encroachment, P
                      availability was low despite high amounts of inorganic P,
                      due to low solubility of calcium phosphates and strong P
                      sorption to Fe oxides at high pH. Calcareous dunes were
                      dominated by low‐competitive arbuscular mycorrhizal (AM)
                      plants, which profit from mycorrhiza especially at low P. In
                      acidic dunes with high grass‐encroachment, P availability
                      increased as calcium phosphates dissolved and P sorption
                      weakened with the shift from Fe oxides to Fe‐OM complexes.
                      Weakly sorbed and colloidal P increased, and at least part
                      of the sorbed P was organic. Acidic dunes were dominated by
                      nonmycorrhizal (NM) plants, which increase P uptake through
                      exudation of carboxylates and phosphatase enzymes, which
                      release weakly sorbed P, and disintegrate labile organic P.
                      The shifts in P availability and plant strategies also
                      changed the soil community. Contrary to expectations, the
                      bacterial pathway was more important in acidic than in
                      calcareous dunes, possibly due to exudation of carboxylates
                      and phosphatases by NM plants, which serve as bacterial food
                      resource. Also, the fungal AM pathway was enhanced in
                      calcareous dunes, and fungal feeders more abundant, due to
                      the presence of AM fungi. The changes in soil communities in
                      turn reduced expected differences in N cycling between
                      calcareous and acidic dunes. Our results show that SOM and
                      pH are important, but separate ecosystem drivers in Grey
                      dunes. Differences in resilience to N deposition are mainly
                      due to pH effects on P availability and plant strategies,
                      which in turn overruled soil community patterns.},
      cin          = {IBG-3},
      ddc          = {570},
      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:000538094900025},
      doi          = {10.1002/ecs2.3112},
      url          = {https://juser.fz-juelich.de/record/888084},
}