05/10/2006 P&Z Packet - Laserfiche WebLink

Home Search

• • • V. Restoration and Management Tasks and Timeline The natural resource restoration and management recommendations contained within this section are divided into three sections: Pre - Construction Management Activities, Phase 1 Restoration and Site Recovery, and Phase 2 Maintenance and Adaptive Management. Pre - construction tasks were completed prior to or during site grading in spring 2005, to capitalize on time - sensitive natural resource conservation opportunities that would have otherwise been lost during site construction. Phase 1 includes natural resource restoration and management tasks designed to address the major ecological problems on the site, restore native vegetation to non - native landscapes, and improve the ecological structure and function of pre- existing natural community remnants. Phase 2 includes management and maintenance tasks that maintain the ecological structure and function of the site through time, and that adapt restoration and management prescriptions based on the ecological response of restoration areas following initial restoration treatments. Phase 1— Site Recovery and Restoration: Years 1- 5 The activities listed in' Phase 1 are particularly critical to the first five years of site restoration and management. Changes in resource management prescriptions and implemented tasks during this time period should be reviewed by professional ecologists and project stakeholders to ensure that they are integrated and in agreement with other ongoing and proposed management tasks, and contribute to the overall quality of the site. Phase 1 Restoration and Management Priorities (Summary timeline provided in Appendix A): 1) Salvage local- ecotype native forest wildflowers, ferns, and sedges from oak forest areas that are proposed for development (prior to grading), transplanting in forested (oak) conservation areas; 2) Control, remove, and manage invasive species — Reed canary grass and common buckthorn. Reed canary grass within wetlands (and upland margins) and common buckthorn within forests and woodlands are the most problematic species present on the site, and their management should be of the utmost priority; • Less than 20% cover of reed canary grass (Phalaris arundinacea) within restored and managed wetlands within the conservation area, • Less than 40% cover of invasive cattail (Typha angustifolia and T. x glauca) in semi - permanently and permanently flooded wetland types. • Less than 5% cover of common buckthorn (Rhamnus cathartica) in upland and wetland areas. 3) Thin and manage quaking aspen along wetland /forest transitions; 4) Restoration of native plant communities currently dominated by native, non - invasive vegetation appropriate to the site; 5) Re- introduction of natural disturbance regimes (such as prescribed fire) that restore and maintain highly functioning natural systems; 6) Establish native species cover within wetland mitigation area, and monitor establishment of vegetation and hydrology within wetland mitigation area; 7) Monitor rare plant populations; The Preserve Conservation Development - Restoration and Management Plan 20