Assembly history modulates vertical root distribution in a grassland experiment

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

The order of arrival of plant species during assembly can affect the structure and functioning of grassland communities. These so-called priority effects have been extensively studied aboveground, but we still do not know how they affect the vertical distribution of roots in the soil and the rooting depth of plant communities. To test this hypothesis, we manipulated the order of arrival of three plant functional groups (forbs, grasses and legumes) in a rhizobox experiment. Priority effects were created by sowing one functional group 10 days before the other two. Rhizoboxes in which all functional groups were sown simultaneously were used as controls. During the experiment, the total visible root length and the mean and maximum rooting depth of plant communities were monitored using image analysis and a new methodological approach using deep learning (RootPainter) for root segmentation. At harvest, we measured aboveground (community and species level) and belowground (community level) biomass, and assessed the vertical distribution of the root biomass in different soil layers. At the community level, all scenarios where one functional group was sown before the other two had similar shoot and root productivity. At the species level, two forbs (Achillea millefolium and Centaurea jacea) benefited from arriving early, and one legume (Trifolium pratense) had a disadvantage when it was sown after the grasses. Priority effect treatments also affected the vertical distribution of roots. When grasses were sown first, plant communities rooted more shallowly (lower mean and maximum rooting depth) than when forbs or legumes were sown first. In addition, roots moved down the soil profile more slowly in grasses-first communities. Our results highlight that plant functional group order of arrival in grassland communities can affect the vertical distribution of roots in the soil and this may have implications for species coexistence.

Original languageEnglish
Article numbere08886
JournalOikos
Volume2023
Issue number1
Number of pages13
ISSN0030-1299
DOIs
Publication statusPublished - 01.2023

Bibliographical note

Funding Information:
The authors would like to thank Dr Thomas Niemeyer (Leuphana University of Lüneburg, Germany) for his outstanding technical support and Abraham George Smith (University of Copenhagen, Denmark) for his extensive advice that enabled us to successfully use RootPainter to analyse our root images. – This research was funded by the Chair of Ecosystem Functioning and Services of the Leuphana University of Lüneburg (Germany). IMAC, VMT and BMD acknowledge funding from the German Research Foundation (project no.: 420444099 and 470604360).

Publisher Copyright:
© 2022 The Authors. Oikos published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos.

    Research areas

  • deep learning, plant order of arrival, priority effects, rhizoboxes, root image analysis, rooting depth, species coexistence
  • Ecosystems Research
  • Biology

DOI

Recently viewed

Publications

  1. God cannot always forgive. Reading Mt 18:21-35 with children
  2. Coping with concept drift in a virtual metrology application to predict part quality in micro gear manufacturing
  3. Exports and productivity
  4. Welcome to the Glitch and Make Some Noise: Understanding Media through Audio Hacking
  5. Testing socio-cultural valuation methods of ecosystem services to explain land use preferences
  6. A Decision Support System for Crew Rostering in Public Transit
  7. Mindfulness as self-confirmation? An exploratory intervention study on potentials and limitations of mindfulness-based interventions in the context of environmental and sustainability education
  8. Pathways towards sustainable and just futures with and for disabled populations
  9. Perceptron and SVM learning with generalized cost models
  10. CSR communication on corporate websites compared across continents
  11. The parrot knew everything
  12. Time-varying persistence in real oil prices and its determinant
  13. Leaf Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) biochemical profile of grassland plant species related to land-use intensity
  14. Meta-custom and the court
  15. Adaptive acquisition planning for visual inspection in remanufacturing using reinforcement learning
  16. Higher Wages in Exporting Firms: Self-Selection, Export Effect, or Both?
  17. Richard Powers – Literatur als Programm
  18. Mietmodell Software Adobe
  19. Development of environmentally biodegradable drugs
  20. From event management to managing events
  21. Complexity Measures of Traffic Scenarios
  22. Industry Transformations for High Service Provisioning with Lower Energy and Material Demand
  23. Manager’s misinterpretation of goodwill impairments
  24. Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications
  25. Das 6-Punkte-Programm für besseres Reiten
  26. Forgetting fire
  27. Unterschriftenregelung/Vertretung
  28. Jonathan Swift, Travels into Several Remote Nations of the World
  29. Gab es wirklich eine Sintflut?
  30. Die Shoah im Bild
  31. An overview of European programs to support energy projects in Africa and strategies to involve the private sector
  32. Web-based support for daily functioning of people with mild intellectual disabilities or chronic psychiatric disorders
  33. Themes in the development of emotion regulation in childhood and adolescence and a transactional model
  34. Career engagement
  35. Square dance