Skip to Main Content
Allometric equations for estimating aboveground biomass for common shrubs in northeastern CaliforniaAuthor(s): Steve Huff; Martin Ritchie; H. Temesgen
Source: Forest Ecology and Management. 398: 48-63
Publication Series: Scientific Journal (JRNL)
Station: Pacific Southwest Research Station
Download Publication (1.0 MB)
DescriptionSelected allometric equations and fitting strategies were evaluated for their predictive abilities for estimating above ground biomass for seven species of shrubs common to northeastern California. Size classes for woody biomass were categorized as 1-h fuels (0.1–0.6 cm), 10-h fuels (0.6–2.5 cm), 100-h fuels (2.5–7.6 cm), and 1000-h fuels (greater than 7.7 cm in diameter). Three fitting strategies were evaluated - weighted nonlinear least squares regression (WNLS), seemingly unrelated regression (SUR), and multinomial log-linear regression (MLR) - to estimate individual shrub biomass as a function of crown area. The inclusion of the shrub height as a covariate did not increase the accuracy of prediction for all species. When MLR was used, on the average, RMSE values were reduced by 23.1% for the 1-h component, by 23.9% for the 10-h component, and by 45.6% for the leaf component for serviceberry when compared to SUR. Based on the residual plots and cross-validation fit statistics, MLR is recommended for estimating AGB for seven major shrub species in California. The equation coefficients are documented for future use.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
CitationHuff, Steve; Ritchie, Martin; Temesgen, H. 2017. Allometric equations for estimating aboveground biomass for common shrubs in northeastern California. Forest Ecology and Management. 398: 48-63. https://doi.org/10.1016/j.foreco.2017.04.027.
- Methods for estimating aboveground biomass and its components for five Pacific Northwest tree species
- Methods for estimating aboveground biomass and its components for Douglas-fir and lodgepole pine trees
- Estimation procedures for understory biomass and fuel loads in sagebrush steppe invaded by woodlands
XML: View XML