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@ARTICLE{Mertens:57155,
      author       = {Mertens, J. and Vanderborght, J. and Kasteel, R. and Pütz,
                      T. and Merckx, R. and Feyen, J. and Smolders, E.},
      title        = {{D}issolved organic fluxes under bare soil},
      journal      = {Journal of environmental quality},
      volume       = {36},
      issn         = {0047-2425},
      address      = {Madison, Wis.},
      publisher    = {ASA [u.a.]},
      reportid     = {PreJuSER-57155},
      pages        = {597 - 606},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The flux of dissolved organic carbon (DOC) in soil
                      facilitates transport of nutrients and contaminants in soil.
                      There is little information on DOC fluxes and the
                      relationship between DOC concentration and water flux in
                      agricultural soils. The DOC fluxes and concentrations were
                      measured during 2.5 yr using 30 automatic equilibrium
                      tension plate lysimeters (AETPLs) at 0.4 m and 30 AETPLs at
                      1.20-m depth in a bare luvisol, previously used as an arable
                      soil. Average annual DOC fluxes of the 30 AETPLS were 4.9 g
                      C m(-2) y(-1) at 0.4 m and 2.4 g C m(-2) y(-1) at 1.2 m
                      depth. The average leachate DOC concentrations were 17 mg C
                      L(-1) (0.4 m) and 9 mg C L(-1) (1.2 m). The DOC
                      concentrations were unrelated to soil moisture content or
                      average temperature and rarely dropped below 9 mg C L(-1)
                      (0.4 m) and 5 mg C L(-1) (1.2 m). The variability in
                      cumulative DOC fluxes among the plates was positively
                      related to leachate volume and not to average DOC
                      concentrations at both depths. This suggests that water
                      fluxes are the main determinants of spatial variability in
                      DOC fluxes. However, the largest DOC concentrations were
                      inversely proportional to the mean water velocity between
                      succeeding sampling periods, suggesting that the maximal net
                      DOC mobilization rate in the topsoil is limited. Elevated
                      DOC concentrations, up to 90 mg C L(-1), were only observed
                      at low water velocities, reducing the risks of
                      DOC-facilitated transport of contaminants to groundwater.
                      The study emphasizes that water flux and velocity are
                      important parameters for DOC fluxes and concentrations.},
      keywords     = {Bromides / Carbon: analysis / Soil: analysis / Water
                      Movements / Bromides (NLM Chemicals) / Soil (NLM Chemicals)
                      / Carbon (NLM Chemicals) / J (WoSType)},
      cin          = {ICG-4},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:17332264},
      UT           = {WOS:000244979300028},
      doi          = {10.2134/jeq2006.0368},
      url          = {https://juser.fz-juelich.de/record/57155},
}