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Combining spectroscopic and isotopic techniques gives a dynamic view of phosphorus cycling in soil

Author

Listed:
  • Julian Helfenstein

    (ETH Zurich)

  • Federica Tamburini

    (ETH Zurich)

  • Christian von Sperber

    (University of Bonn
    McGill University)

  • Michael S. Massey

    (California State University East Bay)

  • Chiara Pistocchi

    (University of Montpellier, CIRAD, INRA, IRD)

  • Oliver A. Chadwick

    (University of California)

  • Peter M. Vitousek

    (Stanford University)

  • Ruben Kretzschmar

    (ETH Zurich)

  • Emmanuel Frossard

    (ETH Zurich)

Abstract

Current understanding of phosphorus (P) cycling in soils can be enhanced by integrating previously discrete findings concerning P speciation, exchange kinetics, and the underlying biological and geochemical processes. Here, we combine sequential extraction with P K-edge X-ray absorption spectroscopy and isotopic methods (33P and 18O in phosphate) to characterize P cycling on a climatic gradient in Hawaii. We link P pools to P species and estimate the turnover times for commonly considered P pools. Dissolved P turned over in seconds, resin-extractable P in minutes, NaOH-extractable inorganic P in weeks to months, and HCl-extractable P in years to millennia. Furthermore, we show that in arid-zone soils, some primary mineral P remains even after 150 ky of soil development, whereas in humid-zone soils of the same age, all P in all pools has been biologically cycled. The integrative information we provide makes possible a more dynamic, process-oriented conceptual model of P cycling in soils.

Suggested Citation

  • Julian Helfenstein & Federica Tamburini & Christian von Sperber & Michael S. Massey & Chiara Pistocchi & Oliver A. Chadwick & Peter M. Vitousek & Ruben Kretzschmar & Emmanuel Frossard, 2018. "Combining spectroscopic and isotopic techniques gives a dynamic view of phosphorus cycling in soil," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05731-2
    DOI: 10.1038/s41467-018-05731-2
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    Cited by:

    1. Julie Tolu & Sylvain Bouchet & Julian Helfenstein & Olivia Hausheer & Sarah Chékifi & Emmanuel Frossard & Federica Tamburini & Oliver A. Chadwick & Lenny H. E. Winkel, 2022. "Understanding soil selenium accumulation and bioavailability through size resolved and elemental characterization of soil extracts," Nature Communications, Nature, vol. 13(1), pages 1-16, December.
    2. Jade J. Basinski & Sharon E. Bone & Annaleise R. Klein & Wiriya Thongsomboon & Valerie Mitchell & John T. Shukle & Gregory K. Druschel & Aaron Thompson & Ludmilla Aristilde, 2024. "Unraveling iron oxides as abiotic catalysts of organic phosphorus recycling in soil and sediment matrices," Nature Communications, Nature, vol. 15(1), pages 1-14, December.

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