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@ARTICLE{Li:887876,
      author       = {Li, Fayong and Liang, Xinqiang and Li, Hua and Jin, Yingbin
                      and Jin, Junwei and He, Miaomiao and Klumpp, Erwin and Bol,
                      Roland},
      title        = {{E}nhanced soil aggregate stability limits colloidal
                      phosphorus loss potentials in agricultural systems},
      journal      = {Environmental sciences Europe},
      volume       = {32},
      issn         = {0934-3504},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2020-04498},
      pages        = {17},
      year         = {2020},
      abstract     = {BackgroundColloid-facilitated phosphorus (P) transport is
                      recognized as an important pathway for the loss of soil P in
                      agricultural systems; however, information regarding soil
                      aggregate-associated colloidal P (Pcoll) is lacking. To
                      elucidate the effects of aggregate size on the potential
                      loss of Pcoll in agricultural systems, soils (0–20 cm
                      depth) from six land-use types were sampled in the Zhejiang
                      Province in the Yangtze River Delta region, China. The
                      aggregate size fractions (2–8 mm, 0.26–2 mm,
                      0.053–0.26 mm and < 0.053 mm) were separated using the
                      wet sieving method. Colloidal P and other soil parameters in
                      aggregates were analyzed.ResultsOur study demonstrated that
                      0.26–2 mm small macroaggregates had the highest total P
                      (TP) content. In acidic soils, the highest Pcoll content was
                      observed in the 0.26- to 2-mm-sized aggregates, while the
                      lowest was reported in the < 0.053 mm
                      (silt + clay)-sized particles, the opposite of that
                      revealed in alkaline and neutral soils. Paddy soils
                      contained less Pcoll than other land-use types. The
                      proportion of Pcoll in total dissolved P (TDP) was dominated
                      by < 0.053 mm (silt + clay)-sized particles.
                      Aggregate size strongly influenced the loss potential of
                      Pcoll in paddy soils, where Pcoll contributed up to $83\%$
                      TDP in the silt + clay-sized particles. The Pcoll
                      content was positively correlated with TP, Al, Fe, and the
                      mean weight diameter. Aggregate-associated total carbon
                      (TC), total nitrogen (TN), C/P, and C/N had significant
                      negative effects on the contribution of Pcoll to potential
                      soil P loss. The Pcoll content of the aggregates was
                      controlled by the aggregate-associated TP and Al content, as
                      well as the soil pH value. The potential loss of Pcoll from
                      aggregates was controlled by its organic matter
                      content.ConclusionWe concluded that management practices
                      that increase soil aggregate stability or its organic carbon
                      content will limit Pcoll loss in agricultural systems.},
      cin          = {IBG-3},
      ddc          = {610},
      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:000520494900002},
      doi          = {10.1186/s12302-020-0299-5},
      url          = {https://juser.fz-juelich.de/record/887876},
}