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Estimating Arundo donax shoot biomass
Spencer, D.F.; Liow, P.-S.; Chan, W.K.; Ksander, G.G.; Getsinger, K.D. (2006). Estimating Arundo donax shoot biomass. Aquat. Bot. 84(3): 272-276. dx.doi.org/10.1016/j.aquabot.2005.11.004
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770, more
Peer reviewed article  

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Keywords
    Introduced species; Invasive species; Arundo donax; Fresh water

Authors  Top 
  • Spencer, D.F.
  • Liow, P.-S.
  • Chan, W.K.
  • Ksander, G.G.
  • Getsinger, K.D.

Abstract
    We developed an equation for estimating Arundo donax shoot dry weight from shoot length. The equation, shoot dry weight (g) = 14.254 (standard error = ±0.275) × shoot height2 (m), was as effective at explaining a high proportion of total variation in shoot dry weight (R2 = 0.90) as more complicated equations containing additional morphometric parameters. Tested against two independent datasets, the equation provided accurate estimates of dry weight for shoots ranging from 0.3 to 7.06 m height (dataset 1, P < 0.0001, R2 = 0.87, N = 29; dataset 2, P < 0.0001, R2 = 0.82, N = 192). The equation provides aboveground biomass estimates from stem counts and heights more rapidly than harvest methods.

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