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The response of Puccinellia maritima to burial: A key to understanding its role in salt‐marsh dynamics?

Identifieur interne : 008847 ( Main/Exploration ); précédent : 008846; suivant : 008848

The response of Puccinellia maritima to burial: A key to understanding its role in salt‐marsh dynamics?

Auteurs : E. Langlois [France] ; A. Bonis [France] ; J. B. Bouzillé [France]

Source :

Journal of Vegetation Science [ 1100-9233 ] ; 2001-04.

RBID : ISTEX:729EC9CA7C819640CACF659996E06A5C1C228852

Descripteurs français

Wicri :
- topic : Biomasse.

English descriptors

Abstract

Abstract. The plant and sediment dynamics in salt marshes are strongly interrelated, but few data are available to document their interaction. Puccinellia maritima is a perennial grass that occurs widely in salt marshes and this study examines its role in the stabilization or trapping of sediment in the pioneer zone and its response to burial, a characteristic phenomenon in accreting salt marshes. Puccinellia not only appears to limit erosion but also to significantly enhance accretion. The functional role of this species is largely dependent on the local disturbance regime. The response of Puccinellia to burial was studied in a series of burial treatments. Growth performance of Puccinellia was stimulated by burial of 4 mm sediment and reduced by burial of 8 mm/month. Burial under 12 mm of sediment led to high mortality of up to 97%. Response was determined by the instantaneous thickness of sediment rather than by the total quantity. Morphological response to burial consisted mainly of stem elongation. Plants collected from accretion zones in the field also produced tillers with adventitious roots at successive soil layers. The range of burial tolerances found for Puccinellia fits well with its occurrence in locations with up to 8 mm sediment accretion per tidal cycle, a common situation in the salt marsh studied.

Url:

https://api.istex.fr/document/729EC9CA7C819640CACF659996E06A5C1C228852/fulltext/pdf

DOI: 10.2307/3236613

Affiliations:

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Le document en format XML

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<author><name sortKey="Bonis, A" sort="Bonis, A" uniqKey="Bonis A" first="A." last="Bonis">A. Bonis</name>
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<author><name sortKey="Bouzille, J B" sort="Bouzille, J B" uniqKey="Bouzille J" first="J. B." last="Bouzillé">J. B. Bouzillé</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accretion</term>
<term>Accretion rate</term>
<term>Adventitious roots</term>
<term>Ammophila breviligulata</term>
<term>Bare soil</term>
<term>Biomass</term>
<term>Biomass index</term>
<term>Burial</term>
<term>Burial tolerance</term>
<term>Burial treatments</term>
<term>Calamovilfa longifolia</term>
<term>Cambridge university press</term>
<term>Cirsium pitcheri</term>
<term>Coarse sand</term>
<term>Coastal salt marshes</term>
<term>Common situation</term>
<term>Control plants</term>
<term>Different burial treatments</term>
<term>Different letters</term>
<term>Dune</term>
<term>Dune species</term>
<term>Environmental change</term>
<term>European community</term>
<term>European salt marshes</term>
<term>First addition</term>
<term>Foucault</term>
<term>Functional role</term>
<term>Gray scott</term>
<term>Growth performance</term>
<term>Growth rate</term>
<term>Height growth</term>
<term>Initial height</term>
<term>July</term>
<term>June</term>
<term>Langlois</term>
<term>Limit erosion</term>
<term>Lower marsh</term>
<term>Lower salt marsh</term>
<term>Maritima</term>
<term>Marsh</term>
<term>Maun</term>
<term>Maun lapierre</term>
<term>Michel</term>
<term>Mont</term>
<term>Mont saint michel</term>
<term>Morphological response</term>
<term>Mortality rate</term>
<term>Other hand</term>
<term>Other treatments</term>
<term>Panicum virgatum</term>
<term>Pearson rank correlation coefficients</term>
<term>Pioneer zone</term>
<term>Puccinellia</term>
<term>Puccinellia maritima</term>
<term>Puccinellia ramets</term>
<term>Ramets</term>
<term>Salt marsh</term>
<term>Salt marshes</term>
<term>Sand accretion</term>
<term>Second addition</term>
<term>Sediment</term>
<term>Sediment accretion</term>
<term>Sediment addition</term>
<term>Sediment additions</term>
<term>Sediment deposition</term>
<term>Sediment dynamics</term>
<term>Significant differences</term>
<term>Significant effect</term>
<term>Single addition</term>
<term>Soil level</term>
<term>Soil surface</term>
<term>Spartina anglica</term>
<term>Spring tide</term>
<term>Tidal</term>
<term>Tidal cycle</term>
<term>Tombelaine</term>
<term>Total addition</term>
<term>Total quantity</term>
<term>Weight biomass</term>
<term>Western european salt marshes</term>
<term>Zhang maun</term>
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<term>Accretion rate</term>
<term>Adventitious roots</term>
<term>Ammophila breviligulata</term>
<term>Bare soil</term>
<term>Biomass</term>
<term>Biomass index</term>
<term>Burial</term>
<term>Burial tolerance</term>
<term>Burial treatments</term>
<term>Calamovilfa longifolia</term>
<term>Cambridge university press</term>
<term>Cirsium pitcheri</term>
<term>Coarse sand</term>
<term>Coastal salt marshes</term>
<term>Common situation</term>
<term>Control plants</term>
<term>Different burial treatments</term>
<term>Different letters</term>
<term>Dune</term>
<term>Dune species</term>
<term>Environmental change</term>
<term>European community</term>
<term>European salt marshes</term>
<term>First addition</term>
<term>Foucault</term>
<term>Functional role</term>
<term>Gray scott</term>
<term>Growth performance</term>
<term>Growth rate</term>
<term>Height growth</term>
<term>Initial height</term>
<term>July</term>
<term>June</term>
<term>Langlois</term>
<term>Limit erosion</term>
<term>Lower marsh</term>
<term>Lower salt marsh</term>
<term>Maritima</term>
<term>Marsh</term>
<term>Maun</term>
<term>Maun lapierre</term>
<term>Michel</term>
<term>Mont</term>
<term>Mont saint michel</term>
<term>Morphological response</term>
<term>Mortality rate</term>
<term>Other hand</term>
<term>Other treatments</term>
<term>Panicum virgatum</term>
<term>Pearson rank correlation coefficients</term>
<term>Pioneer zone</term>
<term>Puccinellia</term>
<term>Puccinellia maritima</term>
<term>Puccinellia ramets</term>
<term>Ramets</term>
<term>Salt marsh</term>
<term>Salt marshes</term>
<term>Sand accretion</term>
<term>Second addition</term>
<term>Sediment</term>
<term>Sediment accretion</term>
<term>Sediment addition</term>
<term>Sediment additions</term>
<term>Sediment deposition</term>
<term>Sediment dynamics</term>
<term>Significant differences</term>
<term>Significant effect</term>
<term>Single addition</term>
<term>Soil level</term>
<term>Soil surface</term>
<term>Spartina anglica</term>
<term>Spring tide</term>
<term>Tidal</term>
<term>Tidal cycle</term>
<term>Tombelaine</term>
<term>Total addition</term>
<term>Total quantity</term>
<term>Weight biomass</term>
<term>Western european salt marshes</term>
<term>Zhang maun</term>
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<front><div type="abstract">Abstract. The plant and sediment dynamics in salt marshes are strongly interrelated, but few data are available to document their interaction. Puccinellia maritima is a perennial grass that occurs widely in salt marshes and this study examines its role in the stabilization or trapping of sediment in the pioneer zone and its response to burial, a characteristic phenomenon in accreting salt marshes. Puccinellia not only appears to limit erosion but also to significantly enhance accretion. The functional role of this species is largely dependent on the local disturbance regime. The response of Puccinellia to burial was studied in a series of burial treatments. Growth performance of Puccinellia was stimulated by burial of 4 mm sediment and reduced by burial of 8 mm/month. Burial under 12 mm of sediment led to high mortality of up to 97%. Response was determined by the instantaneous thickness of sediment rather than by the total quantity. Morphological response to burial consisted mainly of stem elongation. Plants collected from accretion zones in the field also produced tillers with adventitious roots at successive soil layers. The range of burial tolerances found for Puccinellia fits well with its occurrence in locations with up to 8 mm sediment accretion per tidal cycle, a common situation in the salt marsh studied.</div>
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The response of Puccinellia maritima to burial: A key to understanding its role in salt‐marsh dynamics?

The response of Puccinellia maritima to burial: A key to understanding its role in salt‐marsh dynamics?

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

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Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri