Ectomycorrhizal community composition and function in a spruce forest transitioning between nitrogen and phosphorus limitation

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Nitrogen is the main limiting nutrient in boreal ecosystems, but studies in southwest Sweden suggest that certain forests approach phosphorus (P) limitation driven by nitrogen (N) deposition. We added N, P or N + P to a Norway spruce forest in this region, to push the system to N or P limitation. Tree growth and needle nutrient concentrations indicated that the trees are P limited. EMF biomass was reduced only by N + P additions. Soil EMF communities responded more strongly to P than to N. Addition of apatite to ingrowth meshbags altered EMF community composition and enhanced the abundance of Imleria badia in the control and N plots, but not when P was added. The ecological significance of this species is discussed. Effects on tree growth, needle chemistry, and EMF communities indicate a dynamic interaction between EMF fungi and the nutrient status of trees and soils.


Enheter & grupper
Externa organisationer
  • Swedish University of Agricultural Sciences, Umeå
  • Linnaeus University

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Ekologi


Sidor (från-till)20-31
Antal sidor12
TidskriftFungal Ecology
Tidigt onlinedatum2018 jan 1
StatusPublished - 2019
Peer review utfördJa