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2002 Natural Resources Management
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2002 Natural Resources Management
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7/13/2012 10:46:09 AM
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Community type determination follows Eggers and Reed. These wetland community <br />descriptions are described in: Wetland Plants and Plant Communities of Minnesota &Wisconsin <br />(Eggers and Reed, US Army Corps of Engineers, 1997). <br />Wetland Qualitative Ranking <br />After field evaluation of each wetland site, the next step was to assign a qualitative rank for each <br />wetland. MnRAM differs from methods used for upland ranking in this report in that MnRAM <br />was not designed to come up with an overall qualitative rank for each site. Rather, MnRAM <br />allows the evaluator to assign a qualitative rank for each wetland function. According to <br />MnRAM, the rank for each function ranges from low, medium, high, and exceptional. A <br />summary of wetland functional value rankings and classifications for each wetland field <br />inventoried is presented in Appendix A. <br />EVALUATION OF UPLAND SITES <br />Preliminary Assessment <br />The boundaries of potential upland natural communities were delineated using 1:15,840 scale, <br />MnDNR Forestry color infrared aerial photographs. Natural community boundaries, as well as <br />other relevant information, were then drawn on overlays of the photos. <br />At this time, a review of all available information on natural resource features was conducted. <br />This existing information included such sources as National Wetland Inventory Maps, DNR <br />County Biological Survey databases and maps, and other pertinent information. <br />Field Assessment and Community Type Determination <br />The field assessment is a qualitative evaluation of natural communities. The field survey <br />included identification of major plant species in the canopy, subcanopy, shrub, as well as <br />dominant graminoids (grasses, sedges, and rushes) and forbs (nonwoody broadleaf plants). <br />The field inventory also included gathering data on disturbance indicators such as nonnative <br />species encroachment, erosion, and other disturbances. This information provides a solid <br />starting point for developing future management objectives. <br />City of Roseville 60 <br />Parks Natural Resource Management <br />
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