03/22/2004 Council Packet - Laserfiche WebLink

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• ".. . • • • • • • • • • • t • Because the field area has some topography, with the highest elevation being on the east end of the field, gently rolling westward to the lake, three different prairie seed mixtures will be to be applied to the site An upland mix (MDOT 5B) will be used on the eastern end of the field; a wetland /woodland edge mix (MDOT 26B) on at the edge - , of the wooded wetland area and the northwestern portion of the field; and a standard wet prairie mix for the remouning portion of the field (see Figure x). Again, these mixes may be adjusted to reflect the native prairie - composition desired by the City of Lino Lakes. The red osier dogwood and willow shrubs in this wet meadow are an important source of nesting material when the stems are cut and left for the birds. Site restoration activities should hand species nce The seed begins to germinate any remaining weeds may be spot treated or pulled by Reed canary grass was found in the northwestern portion of the field and on the northeast side of the marsh. In coniunction with the restoration effort on the primary field area, these two areas should be prepared by tilling prior • • to the herbicide application. Due to the tenacious nature of reed canary grass every effort should be made to - - . eliminate this invasive species before planting native seed.: Table .1 Initial Restoration Timeline - - Spray initial round of herbicide Disk under remain plants in field Apply additional herbicide if. necessary Plant Seed APPROXIMATE BEGIN DATE Late August Early September . Spot weed control - , TBD save Species During the first 3 years after the initial native grass planting management will focus on maintaining the grasses and forbs planted within the prairie restoration. This will include timely mowing of undesirable species reducing their viability and reproduction capabilities. Target species during this period include Canada thistle, proso millet, reed canary grass, ragweed, blue grass and nettles. Use of the site will be more restrictive due to the sutes vulnerabulu ' nonnative species. Areas where seed has not established should be reseeded as needed ,•,, Wetiond restoration is to include the removal of invasive species from the Wetland and surrounding wetland • boundary. Reed canary grass was identified on the margins of the cattail marsh. The reed canary grass prohibits a diversity of wetland plants and has minimal habitat value for flora and fauna alike. Replacing these areas with native vegetation will improve wetland habitat and reduce local seed source of nonnative species threotening the restored upland area Prescribed burns on native prairies will improve flowering, Seed production. and germination of Mott plants and -..recycles mrtrients, The site should be burned tWice . in the first 10 years after installation, with the first burn Occurring in It Is recommended that additional speaes be added after the site has been burned for the first time • • ' • • • • •' • .• • • •' .• •.„ . • • • .• ; • •. • • . • . • ... • •• . • -• ..• . • • , DRAFT Eagle Brook Conservation Area Management Plan 3/17/2004 • • , • 7