Patterns of plant decomposition and nutrient cycling in natural and created wetlands

  • Published source details Fennessy M.S., Rokosch A. & Mack J.J. (2008) Patterns of plant decomposition and nutrient cycling in natural and created wetlands. Wetlands, 28, 300-310.


This study is summarised as evidence for the following.

Action Category

Restore/create freshwater marshes or swamps (specific action unclear)

Action Link
Marsh and Swamp Conservation
  1. Restore/create freshwater marshes or swamps (specific action unclear)

    A replicated, site comparison study in 2001 of 19 freshwater marshes in Ohio, USA (Fennessy et al. 2008) found that created marshes contained less vegetation biomass than natural marshes. After 1–9 years, created marshes contained less above-ground vegetation biomass on average (209 g/m2) than nearby natural marshes (347 g/m2). Methods: In July and August 2001, live above-ground vegetation was collected 19 depressional marshes (eight 0.1-m2 quadrats/marsh), then dried and weighed. Ten marshes had been created 1–9 years previously. The other nine marshes were natural. The study does not report the specific interventions used for marsh creation, but does note that excavation was involved in all created sites.

    (Summarised by: Nigel Taylor)

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