title: Production and standing crop patterns of giant cutgrass (Zizaniopsis miliacea) in a freshwater tidal marsh.
abstract: Growth cycles and production of aboveground and belowground giant cutgrass (Zizaniopsis miliacea (Michx.) Doell and Asch.) were studied in a freshwater tidal marsh along the lower Savannah River near Savannah, Georgia, USA. Minimum aboveground live standing crop (142 g/m2) occurred in March with a steady increase thereafter to an October maximum (1,039 g/m2) followed by a rapid decline. Giant cutgrass aboveground net primary production was approximately 1,530 g/m2/yr. Rhizomes (358 g/m2/yr) and roots (160 g/m2/yr) yielded an annual belowground production of 518 g/m2/yr. Total above and belowground annual net production was estimated at 2,048 g/m2/yr.
authors.affiliation: Institute of Ecology, University of Georgia, 30602, Athens, Georgia, USA.|Institute of Area and Community Development, University of Georgia, 30602, Athens, Georgia, USA.
authors.forename: Joe B
authors.initials: JB
authors.lastname: Birch
authors.affiliation: Institute of Ecology, University of Georgia, 30602, Athens, Georgia, USA.|Institute of Area and Community Development, University of Georgia, 30602, Athens, Georgia, USA.
authors.forename: James L
authors.initials: JL
authors.lastname: Cooley