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Regulation of priming effect by soil organic matter stability over a broad geographic scale

Author

Listed:
  • Leiyi Chen

    (Chinese Academy of Sciences)

  • Li Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shuqi Qin

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Guibiao Yang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Kai Fang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Biao Zhu

    (Peking University)

  • Yakov Kuzyakov

    (University of Göttingen
    University of Göttingen
    RUDN University)

  • Pengdong Chen

    (Chinese Academy of Sciences
    Ludong University)

  • Yunping Xu

    (Shanghai Ocean University)

  • Yuanhe Yang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

The modification of soil organic matter (SOM) decomposition by plant carbon (C) input (priming effect) represents a critical biogeochemical process that controls soil C dynamics. However, the patterns and drivers of the priming effect remain hidden, especially over broad geographic scales under various climate and soil conditions. By combining systematic field and laboratory analyses based on multiple analytical and statistical approaches, we explore the determinants of priming intensity along a 2200 km grassland transect on the Tibetan Plateau. Our results show that SOM stability characterized by chemical recalcitrance and physico-chemical protection explains more variance in the priming effect than plant, soil and microbial properties. High priming intensity (up to 137% of basal respiration) is associated with complex SOM chemical structures and low mineral-organic associations. The dependence of priming effect on SOM stabilization mechanisms should be considered in Earth System Models to accurately predict soil C dynamics under changing environments.

Suggested Citation

  • Leiyi Chen & Li Liu & Shuqi Qin & Guibiao Yang & Kai Fang & Biao Zhu & Yakov Kuzyakov & Pengdong Chen & Yunping Xu & Yuanhe Yang, 2019. "Regulation of priming effect by soil organic matter stability over a broad geographic scale," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13119-z
    DOI: 10.1038/s41467-019-13119-z
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    Cited by:

    1. Jinquan Li & Junmin Pei & Changming Fang & Bo Li & Ming Nie, 2024. "Drought may exacerbate dryland soil inorganic carbon loss under warming climate conditions," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Ludovic Henneron & Jerôme Balesdent & Gaël Alvarez & Pierre Barré & François Baudin & Isabelle Basile-Doelsch & Lauric Cécillon & Alejandro Fernandez-Martinez & Christine Hatté & Sébastien Fontaine, 2022. "Bioenergetic control of soil carbon dynamics across depth," Nature Communications, Nature, vol. 13(1), pages 1-14, December.
    3. Qian Fang & Anhuai Lu & Hanlie Hong & Yakov Kuzyakov & Thomas J. Algeo & Lulu Zhao & Yaniv Olshansky & Bryan Moravec & Danielle M. Barrientes & Jon Chorover, 2023. "Mineral weathering is linked to microbial priming in the critical zone," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    4. Valentina Brombin & Enrico Mistri & Mauro De Feudis & Camilla Forti & Gian Marco Salani & Claudio Natali & Gloria Falsone & Livia Vittori Antisari & Gianluca Bianchini, 2020. "Soil Carbon Investigation in Three Pedoclimatic and Agronomic Settings of Northern Italy," Sustainability, MDPI, vol. 12(24), pages 1-19, December.
    5. Xuanyu Tao & Zhifeng Yang & Jiajie Feng & Siyang Jian & Yunfeng Yang & Colin T. Bates & Gangsheng Wang & Xue Guo & Daliang Ning & Megan L. Kempher & Xiao Jun A. Liu & Yang Ouyang & Shun Han & Linwei W, 2024. "Experimental warming accelerates positive soil priming in a temperate grassland ecosystem," Nature Communications, Nature, vol. 15(1), pages 1-18, December.
    6. Shuai Ren & Tao Wang & Bertrand Guenet & Dan Liu & Yingfang Cao & Jinzhi Ding & Pete Smith & Shilong Piao, 2024. "Projected soil carbon loss with warming in constrained Earth system models," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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