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Related Experiment Video

Updated: May 18, 2026

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

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Published on: March 13, 2014

Negative plant soil feedback explaining ring formation in clonal plants.

Fabrizio Cartenì1, Addolorata Marasco, Giuliano Bonanomi

  • 1Dipartimento di Ingegneria Agraria e Agronomia del Territorio, University of Naples Federico II, Portici (Na), Italy. fabrizio.carteni@unina.it

Journal of Theoretical Biology
|September 15, 2012
PubMed
Summary
This summary is machine-generated.

Negative plant-soil feedback, driven by toxic soil compounds from litter decomposition, can explain the formation of ring-shaped plant patterns. This mechanism leads to transient vegetation patterns rather than stable spatial structures.

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Area of Science:

  • Ecology
  • Mathematical Biology
  • Plant Ecology

Background:

  • Ring-shaped plant patterns are observed in nature but lack clear mechanistic explanations.
  • Water limitation is a proposed cause, yet rings form even in non-arid environments.

Purpose of the Study:

  • To investigate negative plant-soil feedback as a driver of clonal plant ring formation.
  • To model the role of soil toxicity from litter decomposition in vegetation pattern development.

Main Methods:

  • A spatially explicit model simulating plant biomass dynamics was developed.
  • The model incorporates toxicity from litter decomposition and its decay rate.
  • Analysis focused on stationary solutions and pattern dynamics.

Main Results:

  • The model qualitatively reproduced ring patterns during plant colonization.
  • Ring formation depends on plant susceptibility to soil toxins and toxin decay rates.
  • Pattern dynamics led to homogeneous vegetation, not stable Turing patterns, aligning with field observations.

Conclusions:

  • Negative plant-soil feedback is a significant factor in transient vegetation pattern formation.
  • Environmental conditions influencing toxin decay and plant susceptibility shape observed ring structures.
  • The model provides a mechanistic explanation for diverse ring patterns and ephemeral waves.