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Long-term nitrogen deposition depletes grassland seed banks

Author

Listed:
  • Sofía Basto

    (Unidad de Ecología y Sistemática, Facultad de Ciencias, Pontificia Universidad Javeriana)

  • Ken Thompson

    (The University of Sheffield, Western Bank)

  • Gareth Phoenix

    (The University of Sheffield, Western Bank)

  • Victoria Sloan

    (The University of Sheffield, Western Bank)

  • Jonathan Leake

    (The University of Sheffield, Western Bank)

  • Mark Rees

    (The University of Sheffield, Western Bank)

Abstract

Nitrogen (N) pollution is a global threat to the biodiversity of many plant communities, but its impacts on grassland soil seed banks are unknown. Here we show that size and richness of an acid grassland seed bank is strongly reduced after 13 years of simulated N deposition. Soils receiving 140 kg N ha−1 per year show a decline in total seed abundance, seed species richness, and the abundance of forbs, sedges and grasses. These results reveal larger effects of N pollution on seed banks than on aboveground vegetation as cover and flowering is not significantly altered for most species. Further, the seed bank shows no recovery 4 years after the cessation of N deposition. These results provide insights into the severe negative effects of N pollution on plant communities that threaten the stability of populations, community persistence and the potential for ecosystems to recover following anthropogenic disturbance or climate change.

Suggested Citation

  • Sofía Basto & Ken Thompson & Gareth Phoenix & Victoria Sloan & Jonathan Leake & Mark Rees, 2015. "Long-term nitrogen deposition depletes grassland seed banks," Nature Communications, Nature, vol. 6(1), pages 1-6, May.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7185
    DOI: 10.1038/ncomms7185
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    Cited by:

    1. Anja Schmitz & Johannes Isselstein, 2020. "Effect of Grazing System on Grassland Plant Species Richness and Vegetation Characteristics: Comparing Horse and Cattle Grazing," Sustainability, MDPI, vol. 12(8), pages 1-17, April.
    2. Hui Zhang & Juan Fan & Di Gao & Yulin Liu & Huishi Du, 2022. "Effect of Decreasing the Interception of Solar Illuminance by Vegetation on Ground Temperature in Degraded Grasslands," Sustainability, MDPI, vol. 14(8), pages 1-18, April.
    3. Anu Eskelinen & Maria-Theresa Jessen & Hector A. Bahamonde & Jonathan D. Bakker & Elizabeth T. Borer & Maria C. Caldeira & W. Stanley Harpole & Meiyu Jia & Luciola S. Lannes & Carla Nogueira & Harry O, 2023. "Herbivory and nutrients shape grassland soil seed banks," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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