*Ecological Archives* A024-042-A2

R. Flint Hughes, Gregory P. Asner, Joseph Mascaro, Amanda Uowolo, James Baldwin. 2014. Carbon storage landscapes of lowland Hawaii: the role of native and invasive species through space and time. *Ecological Applications* 24:716–731. http://dx.doi.org/10.1890/12-2253.1

Appendix B. Diameter-to-biomass models used to estimate aboveground biomass (AGB) of Hawaii’s forests.

D is diameter (cm) at 1.37 m from the ground or above buttress; BD is diameter (cm) around the base; H is height (m); ρ is wood density (g/cm^{3}). Information originally published in Asner et al. (2011)^{5}.

Species |
Diameter-to-AGB model | r² |
Min D | Max D | n |

(calculates AGB in kg) | (cm) | (cm) | |||

Acacia koa |
exp(-2.3270+2.3500*ln(D))*1.0171 | 0.99 | 1.5 | 30 | |

Dodonaea viscosa^{1} |
0.13*(BD*10)^{2.55})/1000 |
0.95 | 0.5 | 2.9 | 20 |

Metrosideros polymorpha |
exp(-2.1311+2.5011*ln(D))*1.0671 | 0.98 | 1.8 | 33 | 24 |

Morella faya^{2} |
exp(-1.3412+2.1628*ln(D)) | 0.99 | |||

Prosopis pallida^{1} |
exp(-1.0188+2.1079*ln(BD))*1.0378 | 0.92 | 12.7 | 48.7 | 17 |

Psidium cattleianum |
exp(-1.9096+2.5763*ln(D))*1.0084 | 0.99 | 1.7 | 18.2 | 19 |

Fraxinus uhdei (wood)^{2,3} |
exp(-2.7339+2.5974*ln(D)) | 0.99 | 91.6 | ||

Fraxinus uhdei (leaves)^{2,3} |
exp(-5.921+2.243*ln(D)) | 0.81 | 91.6 | ||

General dead trees < 10 cm |
exp(4.6014+1.1204*ln(D^{2}))*1.11*10^{-3} |
0.95 | 9.9 | ||

General dead trees ≥ 10 cm |
PI*(D/2)^{2}*H*100*0.5/1000 |
n/a^{4} |
|||

General tree ferns |
PI*(D/2)^{2}*H*100*ρ/1000 |
n/a^{4} |

^{1}Model estimates AGB based on basal diameter (cm).

^{2}A correction factor is incorporated.

^{3}Results of models for wood and leaf tissues were combined to estimate total AGB.

^{4}AGB for dead trees and tree ferns was estimated using the volume of a cylinder, with measurements of tree diameter, height, and wood density.

^{5}Asner, G. P., R. F. Hughes, J. Mascaro, A. L. Uowolo, D. E. Knapp, J. Jacobson, T. Kennedy-Bowdoin, and J. K. Clark. 2011. High-resolution carbon mapping on the million-hectare Island of Hawai‘i. Frontiers in Ecology and the Environment 9:434–439.