Net primary production, decomposition and export of Spartina anglica on a Suffolk salt-marsh.

D. Jackson, Stephen P Long, C. F. Mason

Research output: Contribution to journalArticle

Abstract

An annual net primary shoot production (ANPPs) for S. anglica of 220 and 280 g C m-2 was recorded in 1979 and 1980 respectively. Root production was estimated at 180 and 230 g C m-2. Shoot turnover was c2.1 yr-1, and periods of growth and senescence overlapped to a large degree. Only 5-10% of S. anglica stems reached flowering maturity. Total stem density was maximal in late summer (>2000 m-2 in September 1980). Live shoot biomass also reached a peak in late summer, >150 g C m-2 in both years. Production of leaves and stems was highest at the seaward edge of the salt-marsh. A loss of dead material equivalent to 29-32% of ANPPs per year was estimated due to microbes and micro-fauna, with an additional loss of c3% ANPPs yr-1 due to meiofauna. About 15-20% yr-1 of ANPPs was exported from the site of production as particulate matter; of this, 70% entered the estuary and the remainder was removed to the strandline.-from Authors

Original languageEnglish (US)
Pages (from-to)647-662
Number of pages16
JournalJournal of Ecology
Volume74
Issue number3
DOIs
StatePublished - Jan 1 1986
Externally publishedYes

Fingerprint

Spartina anglica
net primary production
salt marshes
saltmarsh
shoot
decomposition
shoots
degradation
stem
stems
strandline
meiofauna
summer
senescence
flowering
particulate matter
turnover
particulates
estuaries
estuary

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science

Cite this

Net primary production, decomposition and export of Spartina anglica on a Suffolk salt-marsh. / Jackson, D.; Long, Stephen P; Mason, C. F.

In: Journal of Ecology, Vol. 74, No. 3, 01.01.1986, p. 647-662.

Research output: Contribution to journalArticle

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