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Summary
This summary is machine-generated.

Human activities alter plant traits, impacting ecosystem functions. Changes in community root traits significantly affect aboveground biomass, microbial biomass, and decomposition, highlighting the consequences of biodiversity loss.

Keywords:
biodiversityecosystem functionsfine rootsfunctional diversityroot economics spaceroot traitstrait‐functioning relationships

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Area of Science:

  • Ecology
  • Plant Ecology
  • Soil Science

Background:

  • Human activities are driving significant biodiversity changes, altering community functional traits.
  • The impact of altered community functional traits on ecosystem functions, particularly belowground processes, remains poorly understood.

Purpose of the Study:

  • To investigate the relationship between root traits within the root economics space and ecosystem functions.
  • To determine if community-level root traits mirror species-level trait trade-offs and influence ecosystem processes.

Main Methods:

  • Utilized observational and experimental data from 810 plant communities across grassland and forest ecosystems.
  • Assessed community-weighted mean root traits and their correlation with ecosystem functions like biomass production, decomposition, and nutrient cycling.

Main Results:

  • Found evidence for a community collaboration gradient but not a community conservation gradient in root traits.
  • Established significant links between community root traits and ecosystem functions, notably aboveground biomass, microbial biomass, and decomposition rates.

Conclusions:

  • Community-level root traits, influenced by species composition, play a crucial role in regulating ecosystem functions.
  • Biodiversity changes driven by humans have cascading effects on ecosystem functioning through alterations in root trait composition.