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@ARTICLE{Borchard:201596,
      author       = {Borchard, Nils and Schirrmann, Michael and von Hebel,
                      Christian and Schmidt, Marius and Baatz, Roland and Firbank,
                      Les and Vereecken, Harry and Herbst, Michael},
      title        = {{S}patio-temporal drivers of soil and ecosystem carbon
                      fluxes at field scale in an upland grassland in {G}ermany},
      journal      = {Agriculture, ecosystems $\&$ environment},
      volume       = {211},
      issn         = {0167-8809},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2015-03890},
      pages        = {84 - 93},
      year         = {2015},
      abstract     = {Ecosystem carbon (C)fluxes in terrestrial ecosystems are
                      affected by varying environmental conditions (e.g., soil
                      heterogeneity and weather) and land management. However, the
                      interactions between soil respiration (Rs) and net ecosystem
                      exchange (NEE) and their spatio-temporal dependence on
                      environmental conditions and land management at field scale
                      is not well understood. We performed repeated C flux
                      measurement at 21 sites during the 2013 growing season in a
                      temperate upland grassland in Germany, which was fertilized
                      and cut three times according to the agricultural practice
                      typical of the region. Repeated measurements included
                      determination of NEE, Rs, leaf area index (LAI),
                      meteorologicalconditions as well as physical and chemical
                      soil properties. Temporal variability of Rs was controlled
                      by air temperature, while LAI influenced the temporal
                      variability of NEE. The three grass cuts reduced LAI and
                      affected NEE markedly. More than $50\%$ of NEE variability
                      was explained by defoliation at field scale. Additionally,
                      soil heterogeneity affected NEE, but to a lower extent
                      $(>30\%),$ while Rs remained unaffected. We conclude that
                      grassland management (i.e., repeated defoliation) and soil
                      heterogeneity affects thespatio-temporal variability of NEE
                      at field scale.},
      cin          = {IBG-3},
      ddc          = {330},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255) / 255 - Terrestrial Systems: From Observation to
                      Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000362049800011},
      doi          = {10.1016/j.agee.2015.05.008},
      url          = {https://juser.fz-juelich.de/record/201596},
}