Life History Aspects of Primary Production in Sedge Wetlands

John M. Bernard, Eville Gorham

Research output: Chapter in Book/Report/Conference proceedingChapter


Sedge shoots differ in their life history; some such as Carex lacustris live for a maximum of 12 to 14 months whereas others such as C. rostrata live for approximately 2 years. Mortality is very high and as many as 80 to 90% of shoots emerging do not complete the maximum possible life-span. Most sedge wetlands have maximum green standing crop values of <1,000 g/sq m; the highest reported value is 1,283 g/sq m. Such values indicate primary production in these wetlands to be <1,000 g/sq m/yr when based on the harvest method. When life history of the shoots, especially mortality, is determined, productivity values are higher; C. lacustris production then approaches 1,600 g/sq m/yr. (See also W79-09609) (Stihler-Mass)
Original languageUndefined/Unknown
Title of host publicationFreshwater Wetlands
EditorsR. E. Good, Dennis F. Whigham, Robert L. Simpson
PublisherAcademic Press
Number of pages13
StatePublished - 1978

Publication series

NameFreshwater Wetlands
PublisherAcademic Press


  • Factors controlling the productivity of pure stands of sedges

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