Ecological Archives E096-211-A1
Anna R. Peschel, Donald R. Zak, Lauren C. Cline, and Zachary Freedman. 2015. Elk, sagebrush, and saprotrophs: indirect top-down control on microbial community composition and function. Ecology 96:2383–2393. http://dx.doi.org/10.1890/15-0164.1
Appendix A. Equations used to estimate shrub biomass in sample plots.
Table A1. Allometric equations used to estimate shrub biomass.
Shrub species |
Measurement (X) |
Allometric biomass equation |
Unit of biomass |
Source |
Artemisia tripartita |
X = percent cover (%) |
Y = 230.586(X) |
Mg/ha |
Riccardi et al. 2007 |
Symphoricarpos oreophilus |
X = crown volume (cm^{3}) |
Y = 5.52 × 10^{-3}(X^{0.799}) |
grams |
Reiner et al. 2010 |
^{1}Chrysothamnus vicsidiflorus |
X = crown volume (cm^{3}) |
Y = 3.18 × 10^{-2} (X^{0.674}) |
grams |
Reiner et al. 2010 |
Artemisia tridentata var. tridentata |
X = percent cover (%) |
Y = 230.586(X) |
Mg/ha |
Riccardi et al. 2007 |
Purshia tridentata |
X = percent cover (%) |
Y = 0.05(X) |
Mg/ha |
Riccardi et al. 2007 |
^{2}Artemisia tridentata var. vaseyana |
X = crown volume (cm^{3}) |
Y = 1.26 x 10^{-2} (X^{0.85}) |
grams |
Reiner et al. 2010 |
Artemisia arbuscula |
X = crown volume (cm^{3}) |
Y = 7.16 × 10^{-8} (X^{2.02}) |
grams |
Reiner et al. 2010 |
1 The biomass equation for this species pertains to plants with 1–50% dead material. See literature cited for biomass equations for greater or less proportions of dead material on the target plant.
2 The biomass equation for this species pertains to plants with 0-15% dead material. See literature cited for biomass equations for greater proportions of dead material on the target plant.