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Community <br />Activity <br />Priority <br />Estimated Cost <br />Comments <br />LL -U2 <br />Remove <br />Medium <br />$500 -1,000 per <br />Cut and treat all stumps with 25 -50% solution <br />nonnative shrubs <br />acre, 40 -100 <br />of Roundup or Garlon. Where brush is thick, <br />volunteer hours <br />stack and burn brush in winter, otherwise cut <br />per acre <br />and let lay. <br />LL -U2 <br />Recut brush <br />Medium <br />$500 -1,000 <br />Brush will likely continue to persist and <br />every 5 -10 years <br />resprouts or new stems over one inch in <br />diameter should be cut. <br />LL -U2 <br />Reintroduce <br />Low <br />$1,000 - 200 <br />Burning is not as important here as in the <br />Prescribed Fire <br />per event <br />adjacent community (and it may not burn due to <br />wetness). However, it would help to maintain a <br />relatively open character. <br />LL -U2 <br />Native grass and <br />Low <br />$100 — 200 <br />Inspect site and reintroduce appropriate local <br />flower seeding, <br />depending on <br />origin plant in bare ground areas. Seed /plant <br />if necessary <br />number of <br />with species typical of Lowland Hardwood <br />species, plants, <br />Forest (see natural communities of study area <br />amount of seed. <br />section). <br />Community LL -U3 <br />Siberian elm monoculture <br />Qualitative Rank: NA <br />Nonnative Shrub Rank: 6 <br />This community is found in two parcels in Langton Lake Park, both of which are on the <br />northwest side adjacent to the ball fields. Although the native tree boxelder is found <br />occasionally here, the vast majority of the canopy is dominated by the nonnative Siberian elm. <br />Tree sizes for this nonnative range from a few inches to about 12 inches in diameter. The shrub <br />layer has sometimes dense patches of European buckthorn, as well as some boxelder and <br />gooseberry. The ground layer is dominated by bare ground and the nonnative pasture grass <br />Kentucky bluegrass, with the native Virginia creeper less common. <br />Because of the dominance of this area by nonnative species and the lack of native plants, this <br />plant assemblage does not meet the minimum characteristics necessary to classify or <br />qualitatively rank it as a native plant community. Management recommendations include <br />planting native hardwood species under the Siberian elm. <br />City of Roseville 110 <br />Parks Natural Resource Management <br />