Agenda - Council - 04/13/2021 - Laserfiche WebLink

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species totaled 15.7% of individuals sampled. The average DBH across all trees sampled was 14" with measurements ranging from 4"- 52". Table 1 shows the observed tree species in order of prevalence by DBH class. Table 1. Observed tree sDecies in order of Drevalence by DBH class in at Riverstone South site. Species 4-8 8-12 12-18 18-24 24-30 30-36 36-42 >42 Total % Total Elm spp. N/A 578 219 41 12 3 2 - 855 37.1 Bur oak 12 120 285 173 79 34 16 8 727 31.5 Hackberry N/A 152 81 37 9 5 1 - 285 12.4 Boxelder N/A 75 34 10 4 6 1 1 131 5.7 White oak 4 19 32 14 5 1 - - 75 3.3 Green ash N/A 29 14 8 1 - 1 - 53 2.3 Ironwood N/A 22 14 2 - - - - 38 1.6 White cedar 20 7 2 - - 1 - - 30 1.3 Eastern red cedar 11 9 4 1 - - - - 25 1.1 Black cherry N/A 15 5 2 1 - - - 23 1 American basswood N/A 10 3 1 2 - - - 16 0.69 Sugar maple N/A 5 2 2 - - - - 9 0.39 Norway spruce - 1 3 2 - - - - 6 0.26 Scots pine - 3 3 - - - - - 6 0.26 Apple spp. N/A 1 3 1 - - - - 5 0.22 Colorado spruce - 1 4 - - - - - 5 0.22 Northern catalpa N/A 3 - - - - - - 3 0.13 Red oak - 2 - 1 - - - - 3 0.13 Black walnut N/A 1 1 - - - - - 2 0.08 Plains cottonwood* N/A - - - - - - 2 2 0.08 Balsam fir - 1 - - - - - 1 0.04 Red maple N/A - 1 - - - - - 1 0.04 Honey locust N/A 1 - - - - - - 1 0.04 White spruce - - 1 - - - - - 1 0.04 Red pine - - 1 - - - - - 1 0.04 White swamp oak - - 1 - - - - - 1 0.04 Total 47 1054 714 295 113 50 21 11 2305 100 *Largest DBH recorded was a Plains Cottonwood at 52" DBH was mapped by density for the three most prevalent trees species (elm spp., bur oak, and hackberry) and is included in Figure 3A-3C. Although elm trees accounted for the greatest number of individuals sampled on site bur oaks accounted for —50% of the total basal area. A list of observed species by total basal area is included in Appendix B.