Trophic importance of Spartina alterniflora production and decomposition to the marsh-estuarine ecosystem

Marinucci, Andrew C.

doi:10.1016/0006-3207(82)90096-9

Cited by 61 publications

(37 citation statements)

References 95 publications

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“…Therefore, it is certain that S. alterniflora can release larger quantities of metals into the marsh environment than native plants. When salt marshes flood, metals excreted from the leaves are resolubilized and can dissolve in the water column, which may influence the metal flux between a salt marsh and estuary (Marinucci, 1982;.…”

Section: Discussionmentioning

confidence: 99%

Uptake and distribution of N, P and heavy metals in three dominant salt marsh macrophytes from Yangtze River estuary, China

Quan

Han

Shen

et al. 2007

Marine Environmental Research

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Section: Discussionmentioning

confidence: 99%

Uptake and distribution of N, P and heavy metals in three dominant salt marsh macrophytes from Yangtze River estuary, China

Quan

Han

Shen

et al. 2007

Marine Environmental Research

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“…Microorganisms typically have low C/N ratios ranging from 3 : 1 to 10: 1 (Greenwood 1968, Hunter 1976 Russel-Hunter 1970, Marinucci 1982. Apparently, the C/N ratio of decomposing S. alterniflora litter changes in such a way as to resemble bacterial biomass.…”

Section: Discussionmentioning

confidence: 99%

“…is the major primary producer in salt marshes of the eastern coast of the United States (Howarth & Teal 1979, Marinucci 1982. Most of the S. alterniflora production apparently decomposes quickly within the salt marsh system (Kruczynski et al 1978, White et al 1978, Haines & Hanson 1979.…”

Section: Introductionmentioning

confidence: 99%

Processes that influence carbon isotope variations in salt marsh sediments

Ember¹,

Williams²,

Morris³

1987

Mar. Ecol. Prog. Ser.

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Salt marsh sedimentary organic matter (SOM) is a mixture of organic carbon from several sources difficult to identify quantitatively. Geochemical analyses of sediment cores at 4 sites in salt marshes at North Inlet, South Carolina (USA), dominated by Spartina alterniflora, were used to investigate accumulation and diagenesis of organic matter in sediments. Stable carbon isotope ratios ( 6 C ) and concentrations of organic carbon in the fine fraction of SOM ranged from -22 to -17 %O and 2 to 9 %, respectively. 6Â° values were significantly more positive in sediments from a short-form Spartina zone than from intermediate or tall-form Spartina areas. Samples from the site dominated by short-form S. alterniflora also contained significantly higher amounts of organic carbon than sites closer to the tidal creek, and demonstrated a positive correlation between organic carbon content and isotopically more positive 6Â° values. Spartina litter buried for 1.25 yr and Spartina lignin had 613C values of -15.35 and -16.34 %o respectively and were significantly more depleted in "C than fresh S. alterniflora (-13.63 %o), but not as depleted as the fine fraction of SOM. However, litter harvested from the marsh surface after 1.25 yr of decomposition had a S1^C value of -13.75 %o. The S^C values of SOM appear to be influenced by a combination of processes, including the selective preservation of isotopically hght refractory carbon, aerobic and anaerobic decay processes, sedimentation of allochthonous carbon from plankton or terrestrial sources, and bioturbation.

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“…Nearly all estimates are, however, from temperate populations. Productivity figures calculated by different methods yield great differences, as demonstrated by Shew et al (1981), Marinucci (1982), Plerce (1983), Groenendijk (1984) and Houghton (1985). The above range of productivity figures was obtained from data mostly utilizing the method of maximum standing biomass.…”

Section: Success Of Phragmites Communismentioning

confidence: 99%

Net aerial primary productivity, litter production and decomposition of the reef Phragmites communis in a nature reserve in Hong Kong: management implications

Lee¹

1990

Mar. Ecol. Prog. Ser.

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Mean net aerial primary productivity of Phragmites communis (L.) Trin. amounted to 2198.3 f 416.7 g dry wt m-' yr-' (8.24 f 1.56 X 10' kcal m-' yr-l) in the Mai PO Marshes, a nature reserve for migrant birds in Hong Kong. Success of P. con~rnunis is also reflected by the high mean aerial standing blomass of 1250.5 f 309.3 g dry wt m-' and > 50 % area1 coverage increase over a 2 yr period.Litter production was estimated as 504.9 f 212.7 g dry wt m-' yr-' Export of litter was only 0.06 % of production; the bulk of litter was thus accumulated and decomposed in situ. Decomposition of litter was influenced by temperature and inundation regimes, the rate at 52.5 % air exposure being significantly higher than at 13.5 and 2.5 % exposure. Cumulated day-degree and cumulated immersion time were better predctors of decomposition rates than time alone. Higher decomposition rates at intermediate exposure were probably related to phylloplane algal growth, which gave the litter very low C:N ratios, attracting grazing gastropods. Success of P. communis is probably related to the high accretion rate and to traditional management practices which are complementary to the seasonal growth cycle. Rapid spread of the reed may decrease the open area available to waterfowl and their prey, and may also encourage further accretion. Clipping at peak biomass in autumn coupled w t h hydropenod and water level management are possible natural ways of control.

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Trophic importance of Spartina alterniflora production and decomposition to the marsh-estuarine ecosystem

Cited by 61 publications

References 95 publications

Uptake and distribution of N, P and heavy metals in three dominant salt marsh macrophytes from Yangtze River estuary, China

Uptake and distribution of N, P and heavy metals in three dominant salt marsh macrophytes from Yangtze River estuary, China

Processes that influence carbon isotope variations in salt marsh sediments

Net aerial primary productivity, litter production and decomposition of the reef Phragmites communis in a nature reserve in Hong Kong: management implications

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