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@ARTICLE{Sun:889010,
      author       = {Sun, Yajie and Wu, Bei and Wiekenkamp, Inge and Kooijman,
                      Annemieke M. and Bol, Roland},
      title        = {{U}ranium {V}ertical and {L}ateral {D}istribution in a
                      {G}erman {F}orested {C}atchment},
      journal      = {Forests},
      volume       = {11},
      number       = {12},
      issn         = {1999-4907},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2020-05385},
      pages        = {1351 -},
      year         = {2020},
      abstract     = {The natural measurements of uranium (U) are important for
                      establishing natural baseline levels of U in soil. The
                      relations between U and other elements are important to
                      determine the extent of geological origin of soil U. The
                      present study was aimed at providing a three-dimensional
                      view of soil U distribution in a forested catchment (ca.
                      38.5 ha) in western Germany. The evaluated data, containing
                      155 sampled points, each with four major soil horizons
                      (L/Of, Oh, A, and B), were collected from two existing
                      datasets. The vertical U distribution, the lateral pattern
                      of U in the catchment, and the occurrence of correlations
                      between U and three groups of elements (nutrient elements,
                      heavy metals, and rare earth elements) were examined. The
                      results showed the median U concentration increased
                      sevenfold from the top horizon L/Of (0.14 mg kg−1) to the
                      B horizon (1.01 mg kg−1), suggesting a geogenic origin of
                      soil U. Overall, soil U concentration was found to be
                      negatively correlated with some plant macronutrients (C, N,
                      K, S, Ca) but positively with others (P, Mg, Cu, Zn, Fe, Mn,
                      Mo). The negative correlations between U and some
                      macronutrients indicated a limited accumulation of
                      plant-derived U in soil, possibly due to low
                      phytoavailability of U. Positive correlations were also
                      found between U concentration and heavy metals (Cr, Co, Ni,
                      Ga, As, Cd, Hg, Pb) or rare earth elements, which further
                      pointed to a geogenic origin of soil U in this forested
                      catchment.},
      cin          = {IBG-3},
      ddc          = {690},
      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:000602172200001},
      doi          = {10.3390/f11121351},
      url          = {https://juser.fz-juelich.de/record/889010},
}