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DocuSign Envelope ID: F52521E7-10C1-43F9-B62F-C1E599A5D572 <br /> • Select a seeding mix of non-invasive species that will provide immediate <br /> stabilization(a short-term environment that will support and compliment <br /> permanent vegetative stabilization) and include a selective native <br /> species mix that will eventually provide a permanent cover(a long-term <br /> environment that,with minimal maintenance,will provide adequate root <br /> and leaf cover). <br /> • Invasive species are to be avoided. If native species and introduced non- <br /> invasive seed sources are not available,protective matting that will hold <br /> and foster the development of native cover from adjacent seed sources <br /> should be used. Continuous maintenance must be employed until the <br /> selected species have matured and are no longer susceptible to competition <br /> from invasive plants. If no alternative to the use of invasive seeds and <br /> plants is available, invasives approved on the plans may be utilized only <br /> with strict containment measures outlined in detail on the plans, in the <br /> construction sequence and in the maintenance specifications. <br /> • Aquickly germinating nurse crop ofnon-invasive,non-competitive annual <br /> grass species can be used along with native seeding and/or matting. These <br /> temporary systems should be planted at minimal density so that they do <br /> not inhibit the growth and establishment of the permanent,native species. <br /> (See the plant chart in Table 6.1l.a for recommended native and nurse <br /> crop species.) <br /> • Seed bed preparation is key to successful establishment of seeds. Particular <br /> care should be taken,however,when working in wetlands,riparian areas, <br /> or floodplains due to their sensitive nature. Careful consideration should <br /> be given to the types and placement of large equipment working in these <br /> areas. This process must be outlined in detail on the plan's construction <br /> sequence. <br /> • Installation techniques vary and should be planned for accordingly. <br /> • A maintenance plan must be established for optimal plant establishment, <br /> submitted with the plans and included in the bid list for the project. <br /> Like all construction sites,wetlands,riparian areas,and floodplains will vary <br /> widely in physical makeup across North Carolina. Different conditions will <br /> dictate specific treatment, design and plant selection within the Mountains, <br /> Piedmont, and Coastal Plain regions. Soil tests, seedbed preparation, <br /> mulching,matting,and maintenance will be critical for successful vegetative <br /> establishment and long-term protection of these environmentally sensitive <br /> areas. Unavoidable impacts to these areas during land disturbing activities <br /> need to be addressed in detail on the plan sheets and construction sequence. <br /> 6.11.8 Rev.5/08 <br />