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Project Impacts <br /> The stream channel and buffer will be enhanced through planting,placement of large rock to <br /> provide channel structure, and replacement of rock lined banks with native vegetation. Treated <br /> lumber used in retaining walls near the channel will be replaced with native stone. Within buffer <br /> functions will be improved that include plant diversity, structure, shading, infiltration, and <br /> filtration. <br /> There will be a net gain of function to critical areas or buffers associated with the proposed <br /> project. <br /> PLANTING PLAN <br /> The goal of the proposed planting is to successfully establish a population of ecologically <br /> adapted native plant species within stream buffer to provide stream bank stabilization, shading, <br /> plant structure,plant diversity, and reduce the dominance of nonnative plant species. <br /> Calculations are based on an overall plant spacing of 8 ft. X 8 ft. Actual planting design will <br /> feature irregular planting spacing (i.e. clustering of plants). Grass may be seeded between plants <br /> to reduce erosion between the house and stream. Where Himalayan blackberry was removed, <br /> plants may be spaced to allow room for mowing blackberry to favor the planted stock. <br /> Bare root plants are allowed. Substitution of native plant species with similar microsites is <br /> allowed. Planting will be done between October and April. Watering or fertilization will not be <br /> required. Mulching is optional using bark or other natural material. If conditions allow,planting <br /> may be allowed in May, June, or September;however, watering would be required during these <br /> drier months. <br /> STREAM BUFFER ENHANCEMENT PLANTING <br /> 5,660 SF <br /> Common Name Species Size WIS Number <br /> Western redcedar Thuja plicata 24" FAC <br /> Pacific dogwood Cornus nuttallii 24" FACU 5 <br /> Paper birch Betula paperifera 24" FACU <br /> Indian plum Symphoricarpus albus 1-gal FAC <br /> Vine maple Acer circinatum 1-gal FAC <br /> Red-osier dogwood Cornus stolonifera 1-gal FAC <br /> Red elderberry Sambucus racemosa 1-gal FACU <br /> Baldhip rose Rosa gymnocarpa 1-gal FAC <br /> Oregon grape Mahonia aquifolium 1-gal FACU 90 <br /> Pacific ninebark Physocarpus capitatus 1-gal FAC <br /> Kinnikinick Arctostaphylos uva-ursi 1-gal FACU <br /> Sword fern Polystichum munitum 1-gal FACU <br /> Lady fern Athyrium filix-femina 1-gal FAC <br /> Total Plants: 95 <br /> 8 <br />