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Because of the dominance of this area hy nonnative species anc� the lack of native plants, this <br />plant assembla�e 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 hardwoad species under the 5iberian elm. <br />�oinmunity Activity PrtonC�+ . �stimated Cost" Coinments` �, * <br />,: , <br />, . , , , _. .. <br />. . [. . ,, t , � , � 1 <br />. . . - .,- .' . ...< < .. -::'.,. • � . .--:: . � '� -'� : � �. � �.�_ <br />. . . .,- . , , ._.. ... . . . _ . �.... , ,._.. <br />_ <br />L,L-U3 Cut buckthorn I�ow $800-1,500 per This is a low priority site for management since <br />and other acre. 40-80 it has fewer natural community characteristics <br />nonnative shrubs volunteer hours than other areas in Langton Park. <br />per acre <br />LL-U3 PEant native Low $500-2,000, 80- Plant native trees typical of dry forest, <br />hardwood trees 200 voluntecr particularly species that are shade tolerant. <br />hours <br />LL-U3 Tree seedling Low $1,000 - 1,000 As native trees and shrubs mature, some cuttin� <br />release per event of Siberian elm may be undertakcn to release <br />the native trees from competition with Siberian <br />eim. Stumps shoutd be trcated with Garlon, <br />Krenite or eq�iva(ent to prevent resprouting. <br />Wetland Natural Community Descriptions and Management <br />Recommendations <br />Most of the wetlands in Langton Lake Park have formed as a result of the overall increase in the <br />size of Langton Lake from what was originally agriculture surroundin� thc arca. The increases in <br />impervious surface due to the many large parking lots and indu5trial areas have contributed a <br />significant amount of stormwater to the lake. All of the wetlands, except W1, have connectivity <br />to the lake and receive direct stormwater inputs. <br />Locations of the improvements discussed in the following paragraphs are shown in fi�ure 6.6 <br />Community LL-W1 <br />Seasonally Flooded Basin <br />Qualitative Rank: Nledium <br />Area: O.Q7 acres <br />This is a small isolat�d depression sur�-ounded by upland forest on three sides and an upland old <br />field to the north. Reed canary �rass is the dort�inant vegetation. The presence of smartweed and <br />City of Rosei�ille 111 <br />Parks Natrrrc�l Resoirrce Mmic�geme�it <br />