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SPECIFICATION - 391 - 4 <br />narrower than the valley bottom if the valley formed under different hydrologic conditions.) Figure 2 <br />illustrates examples of Zone 1 and 2 widths for water courses and bodies. <br />Requirements for Zone 1 shall apply to Zone 2 except that removal of products such as timber, fiber, <br />nuts, fruit and forbs is permitted on a periodic and regular basis provided the intended purpose is not <br />compromised by loss of vegetation or harvesting disturbance. A minimum of 10 percent canopy cover <br />will be maintained in Zone 2. <br />Where this practice is being applied along intermittent streams, species selection for Zone 2 may be <br />made from Table 6, Colorado Plant Materials Technical Note #59 Plant Suitability and Seeding Rates <br />for Conservation Plantings in Colorado. <br />In areas where nutrient, sediment, and/or animal wastes contributions to the riparian forest buffer are <br />not adequately treated or where an additional level of protection is desired, Zone 2 will be expanded <br />with appropriate plants to prevent damage to the buffer. <br />NRCS, CO <br />AUGUST, 2006