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detailed feasibility studies and cost estimates would be prepared at a <br />later time if the City is interested in pursuing the improvements.�ln-lake <br />(alum treatments, aeration, barley straw to inhibit algal growth, limited <br />dredging to create deeper water zones, free emergent vegetation, etc.) <br />and shoreland management alternatives will also be discussed and <br />evaluated for their potential benefits atld costs. <br />Along with previously gathered data, resources analyses and GIS maps <br />created by county staff, these management recommendations will be <br />incorporated into a series of reports. These reports will be defined by <br />previously identified geographical boundaries, such as watersheds, <br />townships, or other natural or geopolitical areas. The report will include <br />by-community information regarding community type, quality, <br />restoration potential, and other pertinent information. Also included will <br />be appendices that include species lists for individual communities that <br />were field visited. <br />Problem Nonnative Species <br />Several of the parks have nonnative species present. Some of these <br />include European buckthorn, tatarian honeysuckle, purple loosestrife, as <br />well as others. Managing these problem species requires they receive <br />separate treatment in planning. <br />We propose to assess the infestation level within natural communities <br />among the five parks, including analysis of population density, land area <br />coverage, and the risk these populations pose to native plant <br />communities. Our staff will then create a priority treatment list based on <br />this information to provide park managers with a clearer picture of <br />where to focus physical and financial resources to receive the greatest <br />benefit. We will also provide the most up-to-date information on <br />methods of treatment on a per-area basis, as well as their expected <br />costs. <br />Also included in the report will be current information on: <br />► Biological implications of management activities, from genetic to <br />landscape scale <br />► Review of relevant issues regarding management of natural areas in <br />suburban settings <br />The reports will be supported by GIS maps potentially created by <br />Roseville City Staff, as well as other appropriate supporting graphics. In <br />addition, natural community polygons created in ArCView by Bonestroo <br />staff will be provided to Roseville staff for their future use. <br />❑ Task 8- Presentation of Findings <br />Spring 2002 <br />Following final report completion, two Bonestroo staff inembers will <br />participate in up to two meetings to present the results of the inventory <br />to city officials and the public. <br />��'ll Ciry of Rosevi//e N�tura/ Resource Management 8 <br />1'�IBonestrW RUSE/7E; Ai>der/ik ai�dAssor-iates, lnC <br />