Litter quality, mycorrhizal association, and soil properties regulate effects of tree species on the soil fauna community

  • Yan Peng*
  • , Martin Holmstrup
  • , Inger Kappel Schmidt
  • , An De Schrijver
  • , Stephanie Schelfhout
  • , Petr Heděnec
  • , Haifeng Zheng
  • , Luciana Ruggiero Bachega
  • , Kai Yue
  • , Lars Vesterdal
  • *Corresponding author for this work

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

    57 Citations (Scopus)
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    Abstract

    Forest management, including selection of appropriate tree species to mitigate climate change and sustain biodiversity, requires a better understanding of factors that affect the composition of soil fauna communities. These communities are an integral part of the soil ecosystem and play an essential role in forest ecosystem functioning related to carbon and nitrogen cycling. Here, by performing a field study across six common gardens in Denmark, we evaluated the effects of tree species identity and mycorrhizal association (i.e., arbuscular mycorrhiza (AM) and ectomycorrhiza (ECM)) on soil fauna (meso- and macrofauna) taxonomic and functional community composition by using diversity, abundance, and biomass as proxies. We found that (1) tree species identity and mycorrhizal association both showed significant effects on soil fauna communities, but the separation between community characteristics in AM and ECM tree species was not entirely consistent; (2) total soil fauna abundance, biomass, as well as taxonomic and functional diversity were generally significantly higher under AM tree species, as well as lime, with higher litter quality (high N and base cation and low lignin:N ratio); (3) tree species significantly influenced the properties of litter, forest floor, and soil, among which litter and/or forest floor N, P, Ca, and Mg concentrations, soil pH, and soil moisture predominantly affected soil fauna abundance, biomass, and taxonomic and functional diversity. Our results from this multisite common garden experiment provide strong and consistent evidence of positive effects of tree species with higher litter quality on soil fauna communities in general, which helps to better understand the effects of tree species selection on soil biodiversity and its functions related to forest soil carbon sequestration.

    Original languageEnglish
    Article number115570
    JournalGeoderma
    Volume407
    Number of pages10
    ISSN0016-7061
    DOIs
    Publication statusPublished - Feb 2022

    Keywords

    • Abundance
    • Biomass
    • Common garden experiment
    • Diversity
    • Functional group
    • Soil meso- and macrofauna
    • Taxonomic group

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