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@ARTICLE{Wei:873886,
      author       = {Wei, Jing and Reichel, Rüdiger and Islam, Muhammad Saiful
                      and Wissel, Holger and Amelung, Wulf and Brüggemann,
                      Nicolas},
      title        = {{C}hemical {C}omposition of {H}igh {O}rganic {C}arbon
                      {S}oil {A}mendments {A}ffects {F}ertilizer-{D}erived {N}2{O}
                      {E}mission and {N}itrogen {I}mmobilization in an {O}xic
                      {S}andy {L}oam},
      journal      = {Frontiers in Environmental Science},
      volume       = {8},
      issn         = {2296-665X},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2020-01076},
      pages        = {15},
      year         = {2020},
      abstract     = {Nitrous oxide (N2O) emission is a negative side effect of
                      modern agriculture and a serious issue for global climate
                      change. The combined application of nitrogen (N) fertilizer
                      and high organic carbon soil amendments (HCA) has been
                      regarded as an alternative to promote fertilizer-related N
                      immobilization and enhance nitrogen use efficiency. The
                      effect of HCA on N2O emission and N immobilization highly
                      depends on its chemical composition, as it controls carbon
                      (C) supply to soil microbes and reactivity of lignin-derived
                      phenols to fertilizer-derived N species. Here we present a
                      127-d laboratory incubation study to explore the N2O
                      emission and N immobilization after combined application of
                      N fertilizer and HCA (wheat straw, spruce sawdust, and
                      commercial alkali lignin) differing in their chemical
                      composition. The 15N labeling technique was used to trace
                      the transformation of fertilizer-N in ammonium (NH4+),
                      nitrate (NO3–), soil organic nitrogen (SON), and N2O. The
                      amendment of wheat straw and spruce sawdust greatly promoted
                      N immobilization and N2O emission, while lignin amendment
                      enhanced the immobilization of fertilizer N. The chemical
                      composition of HCA explained $26\%$ of the total variance of
                      fertilizer-derived N2O emission and N retention via soil
                      microbial biomass, composition of lignin-derived phenols,
                      and nitrification. The holocellulose/lignin ratio of HCA
                      could be used as an indicator for predicting HCA
                      decomposition, microbial N immobilization and N2O emission.
                      In addition, the composition of lignin-derived phenols was
                      affected by HCA amendment and significantly related to N2O
                      emission and N retention. The varying chemical composition
                      of HCA could thus be a promising tool for controlling N2O
                      emission and N immobilization in environment-friendly and
                      climate-smart agriculture.},
      cin          = {IBG-3},
      ddc          = {333.7},
      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:000517530100001},
      doi          = {10.3389/fenvs.2020.00015},
      url          = {https://juser.fz-juelich.de/record/873886},
}