Crown bulk density

n. The mass of available canopy fuel per unit crown volume (Scott and Reinhardt 2001).


  • Discussion


Crown bulk density is a property of an individual tree, not of a plot, stand, or group of trees (see Canopy bulk density). Crown bulk density can be estimated directly using allometric equations or indirectly using separate allometric equations for estimating available crown fuel and crown volume.


Crown bulk density as defined here is not directly used in any fire model (see canopy bulk density); however, methods exist to predict canopy bulk density from crown bulk density.


  • Units


    Preferred units for crown bulk density are kg/m3 in technical reports and papers, as well as in fire Management applications in the United States. See the following crown bulk density  units conversion table for conversion factors.


  • See Also

  • References

    • Scott, Joe H.; Reinhardt, Elizabeth D.  2001.  Assessing crown fire potential by linking models of surface and crown fire behavior  Res. Pap. RMRS-RP-29. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 59 p.


  • Notes

    • Author 

      Joe Scott, Research Forester

      Systems for Environmental Management