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@ARTICLE{Liu:172068,
      author       = {Liu, Shurong and Hu, Ronggui and Cai, Gaochao and Lin, Shan
                      and Zhao, Jinsong and Li, Yayu},
      title        = {{T}he role of {UV}-{B} radiation and precipitation on straw
                      decomposition and topsoil {C} turnover},
      journal      = {Soil biology $\&$ biochemistry},
      volume       = {77},
      issn         = {0038-0717},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2014-05612},
      pages        = {197 - 202},
      year         = {2014},
      abstract     = {In arid and semi-arid area, ultraviolet-B (UV-B) radiation
                      plays a mainly positive role in litter decomposition. In
                      subtropical area, however, the role of UV-B radiation
                      remains uncertain due to the interference of precipitation.
                      To evaluate the potential contribution of precipitation to
                      the role of UV-B radiation, we exposed 84 bags of rice straw
                      to ambient and reduced UV-B radiation, with and without
                      water addition after each precipitation event, on the roof
                      of a building at Huazhong Agricultural University (Wuhan,
                      China). Additionally, the indirect effects of UV-B radiation
                      on soil dissolved organic carbon (DOC) were investigated by
                      placing 70-g soil samples beneath 5-g straw bags with
                      precipitation treatments. Mass loss, DOC and water
                      extractable phenols (WEP) were monitored over 228 days.
                      Subsequently, microbial facilitation was studied, by
                      incubating straw and soil samples exposed for the longest
                      period (228 days) in the laboratory at 25 °C, and by
                      afterwards analyzing their CO2–C emission. Our results
                      demonstrated that UV-B radiation did not significantly
                      affect straw mass loss, but induced an increase in straw
                      DOC, WEP and CO2–C emission by $20.6\%,$ $10.7\%$ and
                      $20.4\%,$ respectively, under dry conditions. Whereas,
                      combined with precipitation, the effects of UV-B radiation
                      on straw DOC, WEP and CO2–C emission were negligible. Only
                      a small decrease in soil DOC $(9.9\%)$ and CO2–C $(4.0\%)$
                      was observed. Furthermore, UV-B radiation interacted
                      significantly with precipitation during straw decomposition.
                      These results indicate that for dry conditions UV-B
                      radiation accelerates straw decomposition by increasing DOC
                      content. For wet conditions, however, the effects of UV-B
                      radiation on straw decomposition are balanced out and even
                      negative on topsoil C turnover.},
      cin          = {IBG-3},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246) / 255 - Terrestrial Systems:
                      From Observation to Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000341556600022},
      doi          = {10.1016/j.soilbio.2014.06.009},
      url          = {https://juser.fz-juelich.de/record/172068},
}