A Record of the Accumulation of Sediment and Trace Metals in A Connecticut Salt Marsh

McCaffrey, R. J.; Thomson, J.

doi:10.1016/s0065-2687(08)60066-7

Cited by 163 publications

(68 citation statements)

References 86 publications

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“…[6] Individual cores were dated with excess 210 Pb ( 210 Pb XS -the amount above that produced from 226 Ra decay in marsh sediments) using a constant rate-of-supply (CRS) model to determine fluctuations in accretion and mineral deposition based on 15-25 ages for each core [Kolker et al, 2009;McCaffery and Thomson, 1980]. Previously, these individual cores were used to address questions related to how marshes adjust to short-term fluctuations in sea level [Kolker et al, 2009].…”

Section: Methodsmentioning

confidence: 99%

Global climate changes recorded in coastal wetland sediments: Empirical observations linked to theoretical predictions

Kolker

Kirwan

Goodbred

et al. 2010

Geophysical Research Letters

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[1] Whether coastal areas are experiencing, and responding to, an accelerated rate of global sea-level rise (GSLR) is critically important for the ∼2 billion people living near Ea rth' s o cea ns. A cc retion rate s from a s uite of physiographically diverse coastal wetlands surrounding Long Island, NY accelerated during the 20th century at 2.3 ± 0.2 × 10 −2 mm yr −2 , which is comparable to reported rates of GSLR acceleration and global temperature changes. Wetlands varied in tidal range, salinity and geomorphic setting, and were located in embayments with limited human impacts in a region with limited and constant rates of subsidence. From geochronologies with temporal resolutions of 2-5 yr, we constructed new composite histories of sediment accretion and mineral deposition. Wetland dynamics are consistent with predictions from sedimentology and a numerical model of ecogeomorphic response, suggesting that these systems, and likely others worldwide, are responding to accelerated GSLR and related climatic changes. Citation: Kolker, A. S., M. L. Kirwan, S. L. Goodbred, and J. K. Cochran (2010), Global climate changes recorded in coastal wetland sediments: Empirical observations linked to theoretical predictions, Geophys. Res. Lett.,

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Section: Methodsmentioning

confidence: 99%

Global climate changes recorded in coastal wetland sediments: Empirical observations linked to theoretical predictions

Kolker

Kirwan

Goodbred

et al. 2010

Geophysical Research Letters

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“…cumulation, the time spent submerged may In a previous study we measured tidal control accretion by affecting plant producexchanges of suspended matter in represen-tivity (McCaffrey and Thompson 1980) or tative sections of the high and low marshes decomposition rates. The accumulation of during 11 tidal cycles throughout the year organic matter may be limited ultimately (Jordan et al 1983).…”

Section: Methodsmentioning

confidence: 99%

Flux of Particulate Matter in the Tidal Marshes and Subtidal Shallows of the Rhode River Estuary

1986

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There was a net influx of suspended particulate matter to the uppermost part of the Rhode River estuary during the several years of this study. Most of the influx was due to episodic discharges of suspended sediment from the watershed during heavy rains. In contrast, tidal exchange of particulate matter was not related to rainstorms. Sediment composition data and historical records indicate that marsh accretion accounts for only 13% of the sediment trapping although marshes occupy 60% of the study area. Influx of particulate matter to the marshes is directly related to the amount of time they are submerged during tidal cycles.

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“…Mineral sedimentation plays an important role in marsh accretion by supplying nutrients that can promote plant production (Broome and others, 1975;DeLaune and others, 1981;Bricker-Urso and others, 1989;Nyman and others, 1990;DeLaune and others, 1992;Nyman and others, 1993). Given the volumetric characteristics of organic matter, its accumulation from aboveground and belowground production contributes more significantly to long-term vertical accretion of soil than to mineral fractions (McCaffrey and Thomson, 1980;Hatton and others, 1983;Nyman and others, 1993;Turner and others, 2001;Turner and others, 2004); however, both are critical in sediment-poor environments (Steyer, 2008).…”

Section: Introductionmentioning

confidence: 99%

Geomorphic and ecological effects of Hurricanes Katrina and Rita on coastal Louisiana marsh communities

Piazza¹,

Steyer²,

Cretini³

et al. 2011

Open-File Report

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A Record of the Accumulation of Sediment and Trace Metals in A Connecticut Salt Marsh

Cited by 163 publications

References 86 publications

Global climate changes recorded in coastal wetland sediments: Empirical observations linked to theoretical predictions

Global climate changes recorded in coastal wetland sediments: Empirical observations linked to theoretical predictions

Flux of Particulate Matter in the Tidal Marshes and Subtidal Shallows of the Rhode River Estuary

Geomorphic and ecological effects of Hurricanes Katrina and Rita on coastal Louisiana marsh communities

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