Relative importance of macrophyte leaves for nitrogen uptake from flood water in tidal salt marshes

Bouma, T.J.; Stapel, J.; Heiden, J. Van der; Koutstaal, B.P.; Soelen, J. van; IJzerloo, L.P. Van

doi:10.3354/meps240093

Cited by 16 publications

(24 citation statements)

References 36 publications

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“…Foliar uptake plays a minor role in seagrass N acquisition at low N loading rates (Bouma et al 2002). The difference here between the responses of stunted and tall plants conforms to this idea.…”

Section: Question 4: Foliar Uptake and N Allocation In Plant Tissuessupporting

confidence: 76%

Plant nitrogen dynamics in fertilized and natural New England salt marshes: a paired 15N tracer study

Drake¹,

Peterson²,

Deegan³

et al. 2008

Mar. Ecol. Prog. Ser.

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Section: Question 4: Foliar Uptake and N Allocation In Plant Tissuessupporting

confidence: 76%

Plant nitrogen dynamics in fertilized and natural New England salt marshes: a paired 15N tracer study

Drake¹,

Peterson²,

Deegan³

et al. 2008

Mar. Ecol. Prog. Ser.

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“…Wolaver & Zieman (1984) showed that N removal from flooding tides could supply up to 100% of the N needed to support the biomass in tall-form Spartina alterniflora and 30 to 105% of the N needed for intermediate-form S. alterniflora in a Virginia (USA) salt marsh; however, the contribution of shoot uptake to removal was not investigated. The study of Bouma et al (2002) is frequently cited as showing that shoot uptake by Spartina anglica can, at most, contribute ~10% to plant N demand. This estimate was based on the premise that plants were only submerged for 2.4 h d -1 and that uptake rates were constant and did not vary over time with substrate concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…This estimate was based on the premise that plants were only submerged for 2.4 h d -1 and that uptake rates were constant and did not vary over time with substrate concentrations. The limited periods of tidal inundation reported by Bouma et al (2002) may be attributed to the fact that Northern European salt marshes are typically high in elevation (French & Reed 2001) and are inundated only during the highest stages of a tidal cycle. North American Atlantic coast tidal marshes generally have elevations that are decimeters below mean high tide (MHT), and periods of inundation can vary greatly depending on the tidal range and location within the marsh platform (Morris et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen uptake by the shoots of smooth cordgrass Spartina alterniflora

Mozdzer

Kirwan²,

McGlathery³

et al. 2011

Mar. Ecol. Prog. Ser.

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The smooth cordgrass Spartina alterniflora is the foundation species in intertidal salt marshes of the North American Atlantic coast. Depending on its elevation within the marsh, S. alterniflora may be submerged for several hours per day. Previous ecosystem-level studies have demonstrated that S. alterniflora marshes are a net sink for nitrogen (N), and that removal of N from flooding tidal water can provide enough N to support the aboveground biomass. However, studies have not specifically investigated whether S. alterniflora plants assimilate nutrients through their aboveground tissue. We determined in situ foliar and stem N uptake kinetics for

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“…The strong reduction of hydrodynamic energy by the stiff S. anglica canopies results in strongly enhanced particle accretion within the tussocks, causing S. anglica patches to become nutrient rich (Hemminga et al 1998) and dome shaped (Castellanos et al 1994, van Hulzen et al 2007). Reduction of inundation periods following sediment accretion is favourable to S. anglica, which is in essence a terrestrial species, photosynthesising during low tide and taking up nutrients predominantly via its roots (Bouma et al 2001(Bouma et al , 2002 and references therein). In contrast to S. anglica, Z. noltii is a true marine plant with submerged photosynthesis and nutrient uptake (Pérez-Lloréns & Niell 1993, Stapel et al 1996 which uses the water column as its main source for carbon and inorganic nutrients (Touchette & Burkholder 2000a,b).…”

Section: Introductionmentioning

confidence: 99%

Consequences of shoot density and stiffness for ecosystem engineering by benthic macrophytes in flow dominated areas: a hydrodynamic flume study

Peralta¹,

Duren²,

Morris³

et al. 2008

Mar. Ecol. Prog. Ser.

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Within intertidal areas of European Atlantic coasts the distribution of the small seagrass Zostera noltii and the halophyte Spartina anglica can partially overlap, despite numerous biomechanical, demographic and ecophysiological differences. Both species are known to be ecosystem engineers that modify their habitat by reducing hydrodynamic energy within their canopies. In this study we investigate the influence of biomechanical (i.e. shoot flexibility) and demographic (i.e. shoot density) characteristics of these intertidal plants on their interaction with unidirectional currents to (1) understand their differences in ecosystem engineering capacity and (2) identify which physical traits explains these differences. In a flume tank, hydrodynamic variables were measured within transplanted S. anglica and Z. noltii meadows, and their corresponding simplified mimics. The results revealed that stiff canopies had a larger potential capacity (relative to flexible ones) to trap sediment, as in these vegetations velocity reduction within the canopy combined with a sufficient volumetric flow rate to provide sediment for settling. Flexible canopies were most efficient at reducing erosion by reconfiguration of their leaves. Shoot density increased the magnitude of these effects when values were moderate. However, the capacity to increase sediment accretion disappeared when the maximum velocity attenuation was reached and the flow of water was relocated on top of the canopy. These habitat modifications may provide ecological benefits for saltmarsh and seagrass species. For saltmarsh plants, the rigid shoots allow lateral expansion of their populations via increased sedimentation. For seagrasses, the dense and flexible shoots typical of temperate intertidal populations provide efficient protection from erosive forces, while at the same time helping to avoid stresses, such as drag forces and high sedimentation rates.

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Relative importance of macrophyte leaves for nitrogen uptake from flood water in tidal salt marshes

Cited by 16 publications

References 36 publications

Plant nitrogen dynamics in fertilized and natural New England salt marshes: a paired 15N tracer study

Plant nitrogen dynamics in fertilized and natural New England salt marshes: a paired 15N tracer study

Nitrogen uptake by the shoots of smooth cordgrass Spartina alterniflora

Consequences of shoot density and stiffness for ecosystem engineering by benthic macrophytes in flow dominated areas: a hydrodynamic flume study

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