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Upland Natural Community Descriptions and Management <br />Recommendations <br />The upland areas of Langton Lake Park all appear to have been grazed in the past, although the <br />major components of the oak communities have not been too drastically altered. There has been <br />some invasion by nonnative shrubs, particularly European buckthorn, as well as dominance of <br />one distinct area in the northwest portion of the park by Siberian elm. However, the vast <br />majority of the natural areas are in moderately good condition and stand a good chance of <br />improving in quality with some active management, including the cutting of nonnative shrubs, <br />reintroduction of fire at proper intervals, and the planting of appropriate native grasses, sedges, <br />and flowers. Below is a summary of upland community descriptions and associated management <br />recommendations. An appendix of this report contains a list of recommended species for <br />reintroducing into forest, savanna, and prairie areas. <br />Community LL -U1 <br />Dry Oak Forest <br />Qualitative Rank: C <br />Nonnative Shrub Rank: Southwest = 17 <br />Northwest = 19 <br />This forest occurs on the west side of Langton Lake with the two parcels separated by County <br />Road C2. The southwest parcel is somewhat better quality as a result of having fewer nonnative <br />shrub problems and less past disturbance. <br />In general, the community has about 90 percent canopy closure and is characterized by bur, <br />white and pin oak that average approximately 22 to 26 inches in diameter. In some places, these <br />oaks have gaps between their canopies and in others have crowns that intermingle. Where <br />canopy gaps occur, a number of tree species have grown into them. Some of these younger, <br />second - growth trees include boxelder, American elm, quaking aspen, and black cherry. In <br />addition, two nonnative tree species are found here. One of these is Siberian elm, found in larger <br />numbers at the north edge of the community. The other is a white poplar clone near a bench and <br />overlook on the southwest side of the lake. <br />City of Roseville 107 <br />Parks Natural Resource Management <br />