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Chapter 4-Site-Specific /ostria/ Storm Water BMPs <br />the soil's water storage porosity and capacity so more water can infiltrate into thh g icalld?h Idiny <br />slowing the runoff and allowing the sediment to drop out or deposit; and (4) by p y Y g <br />the soil in place with plant roots. <br />Vegetative cover can be grass, trees, shrubs, bark, mulch, or straw. Grasses are the most <br />common type of cover used for revegetation because they grow quickly, providing erosion <br />protection within days. Other soil stabilization practices such as straw or mulch may be used <br />during non-growing seasons to prevent erosion. Newly planted shrubs and trees establish root <br />systems more slowly, so keeping existing ones is a more effective practice. <br />Vegetative and other site stabilization practices can be either temporary or permanent controls. <br />Temporary controls provide a cover for exposed or disturbed areas for short periods of time or until <br />permanent erosion controls are put in place. Permanent vegetative practices are used when <br />activities that disturb the soil are completed or when erosion is occurring on a site that is otherwise <br />stabilized. The remainder of this section describes the common vegetative practices listed below: <br />• Preservation of Natural Vegetation <br />• Buffer Zones <br />• Stream Bank Stabilization <br />• Mulching, Matting, and Netting <br />• Temporary Seeding <br />• Permanent Seeding and Planting <br />• Sodding <br />• Chemical stabilization. <br />• <br />C: <br />4-52