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@ARTICLE{Zhou:828062,
      author       = {Zhou, Minghua and Butterbach-Bahl, Klaus and Vereecken,
                      Harry and Brüggemann, Nicolas},
      title        = {{A} meta-analysis of soil salinization effects on nitrogen
                      pools, cycles and fluxes in coastal ecosystems},
      journal      = {Global change biology},
      volume       = {23},
      number       = {3},
      issn         = {1354-1013},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2017-02067},
      pages        = {1338 - 1352},
      year         = {2017},
      abstract     = {Salinity intrusion caused by land subsidence resulting from
                      increasing groundwater abstraction, decreasing river
                      sediment loads and increasing sea level because of climate
                      change has caused widespread soil salinization in coastal
                      ecosystems. Soil salinization may greatly alter nitrogen (N)
                      cycling in coastal ecosystems. However, a comprehensive
                      understanding of the effects of soil salinization on
                      ecosystem N pools, cycling processes and fluxes is not
                      available for coastal ecosystems. Therefore, we compiled
                      data from 551 observations from 21 peer-reviewed papers and
                      conducted a meta-analysis of experimental soil salinization
                      effects on 19 variables related to N pools, cycling
                      processes and fluxes in coastal ecosystems. Our results
                      showed that the effects of soil salinization varied across
                      different ecosystem types and salinity levels. Soil
                      salinization increased plant N content $(18\%),$ soil NH4+
                      $(12\%)$ and soil total N $(210\%),$ although it decreased
                      soil NO3− $(2\%)$ and soil microbial biomass N $(74\%).$
                      Increasing soil salinity stimulated soil N2O fluxes as well
                      as hydrological NH4+ and NO2− fluxes more than threefold,
                      although it decreased the hydrological dissolved organic
                      nitrogen (DON) flux $(59\%).$ Soil salinization also
                      increased the net N mineralization by $70\%,$ although
                      salinization effects were not observed on the net
                      nitrification, denitrification and dissimilatory nitrate
                      reduction to ammonium in this meta-analysis. Overall, this
                      meta-analysis improves our understanding of the responses of
                      ecosystem N cycling to soil salinization, identifies
                      knowledge gaps and highlights the urgent need for studies on
                      the effects of soil salinization on coastal agro-ecosystem
                      and microbial N immobilization. Additional increases in
                      knowledge are critical for designing sustainable adaptation
                      measures to the predicted intrusion of salinity intrusion so
                      that the productivity of coastal agro-ecosystems can be
                      maintained or improved and the N losses and pollution of the
                      natural environment can be minimized.},
      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:000396829300030},
      pubmed       = {pmid:27416519},
      doi          = {10.1111/gcb.13430},
      url          = {https://juser.fz-juelich.de/record/828062},
}