Cited by 130Soil Carbon and Nitrogen DynamicsFire effects on ecosystemsMycorrhizal Fungi and Plant Interactions

Ryegrass-derived pyrogenic organic matter changes organic carbon and nitrogen mineralization in a temperate forest soil

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Maestrini, Bernardo, Herrmann, Anke M., Nannipieri, Paolo, Schmidt, Michael W.I., Abiven, Samuel·2014·Soil Biology and Biochemistry

Abstract

Pyrogenic organic matter (PyOM) is considered as a technique to improve soil fertility and store carbon (C) in soil. However, little is known regarding soil organic C and nitrogen (N) mineralization in PyOM-amended soils. To investigate the relationship between the C and N mineralization rates and the possible consequences in terms of C storage and N availability, we incubated ryegrass-derived PyOM (pyrolyzed at 450 °C) enriched in 13C (4.33 atom %) in a forest Cambisol for 158 days with and without mineral N addition. We determined PyOM and native soil organic C mineralization, NH4+ and NO3− contents in the soil, gross N mineralization, phenol-oxidase and protease activities, and microbial biomass throughout the incubation experiment and the incorporation of PyOM in microbial biomass at the end of the experiment (158 days). We determined that 4.3% of the initial PyOM-C was mineralized after 158 days. Moreover, PyOM induced a strongly positive priming effect within the first 18 days; a negative priming effect was observed from Days 18 to 158. The initial increase in organic matter mineralization corresponded to a higher gross N mineralization and NH4+ content in the PyOM-treated soil than in the untreated soil. Ammonium was rapidly transformed into nitrate and stored in this form until the end of the experiment. We conclude that the presence of PyOM affected the mineralization pattern of native soil organic matter mineralization and increased mineral N content, while N addition did not influence PyOM or soil organic matter mineralization.

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Crossref · 10.1016/j.soilbio.2013.11.013

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Authors
Maestrini, B., Herrmann, A. M., Nannipieri, P., Schmidt, M. W. I., & Abiven, S.
Affiliations
  • University of Zurich (CH)
  • Swedish University of Agricultural Sciences (SE)
  • University of Florence (IT)
Corresponding author
Abiven, Samuel
Venue
Soil Biology and Biochemistry
Publisher
Elsevier BV
Published
2014-02
Volume
69
Pages
291-301
ISSN
0038-0717 (ISSN-L)
OpenAlex
W2040454521
Cited by
130
References
87
Citations by year
2026: 7 · 2025: 8 · 2024: 8 · 2023: 10 · 2022: 11 · 2021: 14 · 2020: 10 · 2019: 11 · 2018: 9 · 2017: 13 · 2016: 15 · 2015: 8 · 2014: 6
FWCI
14.01
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Soil Biology and Biochemistry (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • Paul Scherrer Institut
  • Università degli Studi di Firenze
  • Universität Zürich
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Fire effects on ecosystems
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycorrhizal Fungi and Plant Interactions
Keywords
pyrogenic organic matter, ryegrass, soil organic carbon mineralization, nitrogen mineralization, priming effect, ammonium, nitrate, microbial biomass, phenoloxidase activity, proteolytic activity, nitrogen addition, Cambisol, temperate forest soils, soil carbon storage

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