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@ARTICLE{Squaris:12041,
      author       = {Séquaris, J.-M. and Herbst, M. and Weihermüller, L. and
                      Bauer, J. and Vereecken, H.},
      title        = {{S}imulating decomposition of 14{C}-labelled fresh organic
                      matter in bulk soil and soil particle fractions at various
                      temperatures and moisture contents},
      journal      = {European journal of soil science},
      volume       = {61},
      issn         = {1351-0754},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {PreJuSER-12041},
      pages        = {940 - 949},
      year         = {2010},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {14C-labelled fresh organic matter (FOM) was homogeneously
                      incorporated into an agricultural topsoil of small total
                      organic carbon (TOC) content in order to perform
                      decomposition batch experiments at temperatures (T) ranging
                      from 5 to 45°C and soil gravimetric water contents (w)
                      ranging from 7 to $35\%.$ After 4–6-month incubation
                      (tend), the residual 14C (Dend) was measured in bulk soil
                      (0–2000 µm) and soil particle size fractions of 0–53,
                      53–200 and 200–2000 µm by chemical dispersion and
                      sieving. The 14C-FOM decomposition kinetics from soil were
                      fitted either by a single first-order reaction (rate
                      constant, k0–2000) assuming only a one-pool model in the
                      bulk soil or by consecutive first-order reactions (rate
                      constants, k0–53 and k53–2000) assuming a two-pool model
                      in the bulk soil aggregate structure. In the latter case, a
                      two-step reaction mechanism involving a FOM particle-size
                      decrease along the soil fractions was considered where
                      k0–53 was assumed to be a limiting rate constant. The
                      14C-FOM decomposition kinetics was described for the
                      experimental temperature and water ranges by Arrhenius and
                      Michaelis-Menten relationships, respectively. Additionally,
                      the results obtained by the adapted Arrhenius
                      physicochemical relationship were compared with the function
                      proposed by Kirschbaum (1995). Scaling functions Tm and wm
                      were established and can be used to simulate FOM
                      decomposition rates under different temperature and moisture
                      level conditions. Modelling based on consecutive first-order
                      reactions supported the hypothesis that the circulation
                      (inflow and outflow) of C into the soil particle small-size
                      fractions (<53 µm) controls the total C mineralization.},
      cin          = {ICG-4 / JARA-ENERGY / JARA-HPC},
      ddc          = {630},
      cid          = {I:(DE-Juel1)VDB793 / $I:(DE-82)080011_20140620$ /
                      $I:(DE-82)080012_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Soil Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000284322200011},
      doi          = {10.1111/j.1365-2389.2010.01299.x},
      url          = {https://juser.fz-juelich.de/record/12041},
}