Figure 2—Example of accumulated litter, bark, and woody material at the base of a eucalyptus coppice.
| NOTES TO USERS: | |
| 1. | The sites in this series are arranged in order of increasing surface fuel (i.e., dead and down woody fuel, litter, and understory vegetation) loading. |
| 2. | A list of scientific and common species names can be found in the introductory notes for Volume XIII. |
| 3. | The bulk density value used for calculating eucalyptus litter loading from depth measurements was 3.61 tons•acre-1• inch-1 based on 24 samples collected from three of the six eucalyptus sites. |
| 4. | Eucalyptus litter, bark, and branch material can accumulate at the bases of some trees or groups of trees creating areas of relatively deep litter and woody fuels, particularly in eucalyptus forests regenerated through coppicing (fig. 2). Basal accumulations were inventoried and measured within the sample area (fig. 1) to estimate their abundance and biomass or loading. The density of basal accumulations refers to the total number of accumulations, not the number of stems with accumulations (i.e., an individual accumulation can be associated with more than one tree stem). See the "litter" sampling section for a more detailed description of the methods used to quantify basal accumulations. No basal accumulations were observed within the sample area for EBE 06; the basal accumulation visible on the right side of the wide-angle photograph was outside of the sample area. |
| 5. | Photographs were taken in September 2010. Sampling was performed in October 2010. |
| 6. | The marker in these photographs is a 1-ft square, and the pole is painted in contrasting colors at 1-ft intervals. The pole is 30 ft from the camera and is 6-ft tall. Note that no sampling occurs in the foreground between the camera and the sign. |
| 7. | Trace coverage is coverage <0.5 percent. Trace biomass indicates biomass <0.005 tons/ac. The designation of "na" indicates cases where data are missing or "not available." |
| 8. | A distinction is made between rotten and sound woody material for pieces larger than 3 inches in diameter. |
| 9. | Eucalyptus bark partially separates from the bole, potentially creating a flammable fuel ladder by which fire could spread vertically from the ground surface to the tree crowns. No attempt was made to quantify eucalyptus bark that is still attached to the trees as a "ladder fuel" in this series, although fire and fuel managers should take note of it when assessing eucalyptus-dominated stands. |
Figure 2—Example of accumulated litter, bark, and woody material at the base of a eucalyptus coppice. |
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