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@ARTICLE{Schaller:888962,
      author       = {Schaller, Mirjam and Dal Bo, Igor and Ehlers, Todd A. and
                      Klotzsche, Anja and Drews, Reinhard and Fuentes Espoz, Juan
                      Pablo and van der Kruk, Jan},
      title        = {{C}omparison of regolith physical and chemical
                      characteristics with geophysical data along a climate and
                      ecological gradient, {C}hilean {C}oastal {C}ordillera (26 to
                      38° {S})},
      journal      = {Soil},
      volume       = {6},
      number       = {2},
      issn         = {2199-398X},
      address      = {Göttingen},
      publisher    = {Copernicus Publ.},
      reportid     = {FZJ-2020-05361},
      pages        = {629 - 647},
      year         = {2020},
      abstract     = {We combine geophysical observations from ground-penetrating
                      radar (GPR) with regolith physical and chemical properties
                      from pedons excavated in four study areas spanning 1300 km
                      of the climate and ecological gradient in the Chilean
                      Coastal Cordillera. Our aims are the following: (1) to
                      relate GPR observations to depth-varying regolith physical
                      and weathering-related chemical properties in adjacent
                      pedons and (2) to evaluate the lateral extent to which these
                      properties can be extrapolated along a hillslope using GPR
                      observations. Physical observations considered include
                      regolith bulk density and grain size distribution, whereas
                      chemical observations are based on major and trace element
                      analysis. Results indicate that visually determined pedolith
                      thickness and the transition from the B to C horizons
                      generally correlate with maximums in the 500 and 1000 MHz
                      GPR envelope profiles. To a lesser degree, these maximums in
                      the GPR envelope profiles agree with maximums in
                      weathering-related indices such as the chemical index of
                      alteration (CIA) and the chemical index of mass transfer
                      (τ) for Na. Finally, we find that upscaling from the pedon
                      to hillslope scale is possible with geophysical methods for
                      certain pedon properties. Taken together, these findings
                      suggest that the GPR profiles down hillslopes can be used to
                      infer lateral thickness variations in pedolith horizons in
                      different ecologic and climate settings, and to some degree
                      the physical and chemical variations with depth.},
      cin          = {IBG-3},
      ddc          = {550},
      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:000600177000001},
      doi          = {10.5194/soil-6-629-2020},
      url          = {https://juser.fz-juelich.de/record/888962},
}