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Updated: May 14, 2026

A Simple Planting Technique for Re-establishing Trees Where Frequent Inundation Occurs
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Published on: January 26, 2018

Vegetation engineers marsh morphology through multiple competing stable states.

Marco Marani1, Cristina Da Lio, Andrea D'Alpaos

  • 1Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC 27708, USA. marco.marani@duke.edu

Proceedings of the National Academy of Sciences of the United States of America
|February 13, 2013
PubMed
Summary
This summary is machine-generated.

Marsh zonation results from vegetation actively shaping soil elevation through coupled geomorphological-biological dynamics. These stable states, though suboptimal for biomass, influence ecosystem resilience to sea level rise and sediment changes.

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

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Published on: March 13, 2014

Area of Science:

  • Ecological dynamics
  • Geomorphology
  • Biogeomorphology

Background:

  • Marsh zonation, characterized by distinct vegetation patches and sharp transitions, is a key biogeomorphic feature.
  • While linked to accretion and sea-level rise, the precise biogeomorphic mechanisms driving zonation remain poorly understood.

Purpose of the Study:

  • To elucidate the underlying biogeomorphic mechanisms driving marsh zonation.
  • To investigate the role of vegetation in actively engineering landscape elevation.

Main Methods:

  • Analysis of observational data and modeling interpretation.
  • Frequency distribution analysis of topographic elevation data.
  • Investigation of inorganic and organic deposition interplay.

Main Results:

  • Zonation arises from coupled geomorphological-biological dynamics, with vegetation tuning soil elevation.
  • Multiple peaks in elevation frequency distribution indicate biologic control via competing stable states.
  • Stable biogeomorphic equilibria were observed to correlate with suboptimal biomass production rates.

Conclusions:

  • Vegetation actively engineers marsh landscapes, creating stable elevation states that define zonation.
  • These biogeomorphic structures exhibit varying robustness to sea-level rise and sediment availability.
  • Understanding these dynamics is crucial for assessing marsh ecosystem resilience to climate change.