Allometric Equations for Predicting Above-ground Biomass of Tamarix in the Lower Colorado River Basin

摘要: Allometric equations are essential for quantitative study of aboveground biomass. The paper presents an effort in acquisition and validation allometric equation salt cedar (Tamarix spp.), a species that has been criticized its invasion negative impacts on the riparian ecosystem western United States. In summers 2009 2011, biomass destructive samplings were conducted to harvest collect samples at Cibola National Wildlife Refuge, Arizona. developed by establishing relationship between with average basal diameter, tree height, total area. validity strength models examined adjusted coefficient determination (r), standard error estimate (SSE), Akaike Information Criterion (AIC). Total area was identified as best predictor biomass, followed height. Average diameter poor predictor. linear equations, accounted 78.4 percent variation logarithmic height together explained 87.7 yielded small AIC SSE. These will advance estimation provide useful information studying evapotranspiration, water consumption, carbon storage.