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@ARTICLE{DalBo:862526,
      author       = {Dal Bo, Igor and Klotzsche, Anja and Schaller, Mirjam and
                      Ehlers, Todd A. and Kaufmann, Manuela and Fuentes Espoz,
                      Juan Pablo and Vereecken, Harry and van der Kruk, Jan},
      title        = {{G}eophysical imaging of regolith in landscapes along a
                      climate and vegetation gradient in the {C}hilean coastal
                      cordillera},
      journal      = {Catena},
      volume       = {180},
      issn         = {0341-8162},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-02825},
      pages        = {146 - 159},
      year         = {2019},
      abstract     = {Many studies have recently shown the potential of
                      geophysical tools in bridging the information gap between
                      individual point-scale measurements. Here, we upscale and
                      extend the point-scale layering information from pedons
                      (excavated pit of 1 m2) using geophysical methods. We
                      applied multi-frequency ground-penetrating radar (GPR) in
                      four study areas in the extreme climate and vegetation
                      gradient of the Chilean Coastal Cordillera. The main goals
                      of this study were to understand how granitic based regolith
                      material varies depending on climate, vegetation cover,
                      aspect, and topography.GPR was successfully used in all four
                      study areas. Reflections, which were imaged up to a depth of
                      8 m, could be associated with boundaries visible in the
                      pedons. The main recognizable reflections were linked with
                      the interface between the mobile soil and the immobile
                      saprolite. This boundary is characterized by
                      hyperbolic-shape features, probably connected to
                      heterogeneities (e.g. pebbles). A deeper GPR penetration
                      depth in south-facing hillslopes was observed than in
                      north-facing hillslopes. This is probably due to less sun
                      exposure in the south facing slopes, which results in higher
                      soil water content and denser plant growth, facilitating
                      weathering processes. Furthermore, thicker layers in the GPR
                      profiles are visible going from north to south along the
                      latitude. Most of these observations were in agreement with
                      the soil pedons.These results demonstrate the utility of the
                      GPR technique for characterizing subsurface variations in
                      regolith properties (e.g. thickness, boundaries). Additional
                      soil pedons should be excavated based on GPR results.
                      Applying noninvasive geophysical methods could improve the
                      understanding of the interactions between soil formation,
                      vegetation, and other environmental parameters.},
      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:000472244900014},
      doi          = {10.1016/j.catena.2019.04.023},
      url          = {https://juser.fz-juelich.de/record/862526},
}