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@ARTICLE{Borchard:155365,
      author       = {Borchard, Nils and Spokas, Kurt and Prost, Katharina and
                      Siemens, Jan},
      title        = {{G}reenhouse {G}as {P}roduction in {M}ixtures of {S}oil
                      with {C}omposted and {N}oncomposted {B}iochars {I}s
                      {G}overned by {C}har-{A}ssociated {O}rganic {C}ompounds},
      journal      = {Journal of environmental quality},
      volume       = {43},
      number       = {3},
      issn         = {0047-2425},
      address      = {Madison, Wis.},
      publisher    = {ASA [u.a.]},
      reportid     = {FZJ-2014-04534},
      pages        = {971 -},
      year         = {2014},
      abstract     = {Biochar application to soil has the potential to increase
                      soil productivity while reducing anthropogenic greenhouse
                      gas (GHG) emissions to the atmosphere. However, techniques
                      for conditioning this material for maximizing its effects as
                      a soil amendment require elucidation. We examined changes of
                      organic matter associated with two biochars after 175 d of
                      composting and the resulting effects on GHG emissions during
                      a 150-d incubation period. Composting decreased the amount
                      of organic compounds that could be thermally released from
                      the biochars and affected their molecular nature. These
                      thermally desorbable organic compounds from initial biochars
                      likely stimulated the oxidation of CH4 and inhibited the
                      production of N2O in soil–biochar mixtures. However, these
                      reductions of GHG emissions disappeared together with
                      thermally desorbable organic compounds after the composting
                      of chars. Instead, addition of composted gasification coke
                      and charcoal stimulated the formation of CH4 and increased
                      N2O emissions by 45 to $56\%.$ Nitrous oxide emissions
                      equaled $20\%$ of the total amount of N added with composted
                      biochars, suggesting that organic compounds and N sorbed by
                      the chars during composting fueled GHG production. The
                      transient nature of the suppression of CH4 and N2O
                      production challenges the long-term GHG mitigation potential
                      of biochar in soil.},
      cin          = {IBG-3},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246) / 255 - Terrestrial Systems:
                      From Observation to Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000336275700020},
      doi          = {10.2134/jeq2013.07.0290},
      url          = {https://juser.fz-juelich.de/record/155365},
}