Agenda - Environmental Policy Board - 12/04/2006

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Exhibit 1 Oak, bur Boxelder Ash, prickly Oak, red Cherry, black Aspen Buckthorn, common Cherry, ornamental Redcedar, eastern Elm, Siberian Elm, American Other 68 55 53 41 39 25 23 16 13 8 7 18 18.6 15.3 14.5 11.2 10.7 6.8 6.3 4.4 3.6 2.2 1.9 4.9 In area 4,69.9% (256) trees are regeneration, though prickly ash is rarely larger than 4" DBH and grows more like a shrub. If we discount this species 55.5% (203) trees are regeneration and box elder becomes the most common tree regenerating in this area. Table 9. Regeneration Diversity Species Count Percent Ash, prickly 53 20.7 Boxelder 49 19.1 Cherry, black 29 11.4 Oak, red 26 10.2 Oak, bur 23 9.0 Buckthorn 22 8.6 Cherry, ornamental 16 6.3 Aspen 10 3.9 Redcedar, eastern 8 3.1 Elm, Siberian 6 2.3 Elm, American 3 1.2 Other 11 4.3 Plot Data. The thirty, circular plots were intentionally located in a variety of areas to try to capture as much information relating to all tree species that might be growing in each subdivision in addition to some information about conditions at the site. Some were located in wetlands; others included lawns, driveways and gardens while others were entirely in wooded areas. Plot locations and the data collected at each plot have been submitted to the City as a GIS layer. Some information of note: 1. Common buckthorn was found at one-third of the plots 2. Honeysuckle was found at five plots 3. American elms are dominant or nearly so at three of the sites 4. Oaks are dominant at nearly on-half of the sites regardless of the fact that at none of three subdivisions did oaks account for as much as 30% of all trees. Kunde Co., Inc. Page 7 12/4/2006