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@ARTICLE{Tian:910928,
      author       = {Tian, Yanfang and Wang, Qiqi and Gao, Wei and Luo, Yu and
                      Wu, Lei and Rui, Yichao and Huang, Yaping and Xiao, Qiong
                      and Li, Xin and Zhang, Wenju},
      title        = {{O}rganic amendments facilitate soil carbon sequestration
                      via organic carbon accumulation and mitigation of inorganic
                      carbon loss},
      journal      = {Land degradation $\&$ development},
      volume       = {33},
      number       = {9},
      issn         = {1085-3278},
      address      = {Chichester, Sussex},
      publisher    = {Wiley},
      reportid     = {FZJ-2022-04257},
      pages        = {1423 - 1433},
      year         = {2022},
      abstract     = {Both soil organic carbon (SOC) and soil inorganic carbon
                      (SIC) are important carbon reservoirs involved in the global
                      carbon cycle. Fertilization especially organic amendments
                      can increase SOC sequestration, while nitrogen
                      fertilization-induced soil acidification leads to
                      significant SIC loss in alkline soil. How fertilization
                      changes SIC and SOC via altering abiotic and biotic
                      properties remains unclear. Here, we investigated the
                      effects of mineral fertilizer with/without organic
                      amendments (manure, straw, green manure) on SIC and SOC in
                      bulk soil and particle-size fractions, as well as their
                      interrelationship based on a 38-year field trial. Results
                      showed that compared to the unfertilized soil, mineral
                      fertilization significantly decreased SIC by
                      $13.38\%–15.69\%,$ primarily due to decreased soil pH.
                      However, mineral nitrogen plus manure (NM) largely increased
                      SIC by $26.55\%,$ likely resulting from thereprecipitated by
                      Ca2+ and/or Mg2+ compensation. Mineral nitrogen plus manure
                      and straw (NM, NS) increased SOC by $11.12\%–100.35\%.$
                      For bulk soil and particle-size fractions >0.25 mm, SIC
                      content was positively correlated with SOC. Random forest
                      model revealed that SOC was regulated by soil nutrients
                      (total nitrogen [TN], Olsen-P), microbial biomass and
                      β-1,4-N-acetyl-glucosaminidase. The change in SIC was
                      directly regulated by soil Mg2+, and indirectly by soil
                      nutrients (e.g., TN, Olsen-P) which affected crop-derived C
                      input. Our findings suggested that organic manure amendments
                      can facilitate SOC accumulation and mitigate SIC loss by
                      occluded more SIC in large soil particles. The results are
                      of fundamental significance for understanding the role of
                      optimal manure application played in SOC sequestration and
                      SIC accumulation.},
      cin          = {IBG-3},
      ddc          = {690},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000769266400001},
      doi          = {10.1002/ldr.4248},
      url          = {https://juser.fz-juelich.de/record/910928},
}