Typha productivity in a Texas pond: Implications for energy and nutrient dynamics in freshwater wetlands

Brian H Hill

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15 Scopus citations

Abstract

Above-and below-ground biomass of Typha angustifolia L. was sampled monthly for 18 months from a small Texas pond. Maximum above-ground biomass was 2559±284 g AFDW (ash-free dry weight) m-2 in 1983 and 2895±217 g AFDW m-2 in 1984. Peak below-ground biomass for these 2 years was 2506±278 g AFDW m-2 and 2314±226 g AFDW mt-2, respectively. Stepwise multiple linear regression analyses revealed that mean above-ground biomass accrual was related to duration of growing season, cumulative precipitation, cumulative degree days and/or cumulative pan evaporation. The same was not true for below-ground biomass increases. Analysis of covariance revealed that the rates of above-ground biomass production were not significantly different (F test, p < 0.05) between the 1983 and 1984 growing seasons. Below-ground biomass turnover times for 1983 and 1984 were 2.47 and 1.21 years, respectively.

Original languageEnglish (US)
Pages (from-to)385-394
Number of pages10
JournalAquatic Botany
Volume27
Issue number4
DOIs
StatePublished - May 1987

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