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RULE 4 PERFORMANCE STANDARDS <br />cross -ripped with a dozer or by other appropriate means to ensure the material is in a loose, <br />rough condition to encourage infiltration of rain/snowmelt and root development. <br />d) The Sagebrush Steppe mix has been modified to reduce the volume of "low shrubs" in <br />favor of tall shrub components of the mix. The grasses currently included in the mix were <br />also reduced to minimize competition, while still providing some soil stabilization <br />function. The entire trial area will be seeded with the modified Sagebrush Steppe Mix as <br />seen below. In the event individual components of the mix are unavailable, guidance from <br />the Division will be sought prior to implementation of the trial. Weedguard fabric or it's <br />equivalent will be placed in rows (at intervals of approximately 22 feet) and will be used <br />to severely reduce competition between the containerized plantings and annual weeds and <br />grasses. Please see the "Expected Field Implementation Plan for Aspen/Tall Shrub Field <br />Trials" illustration below. <br />e) Containerized 2-3 foot serviceberry and chokecherry plants will utilized from the most <br />similar source elevation available in the region. Based on the volume of containerized <br />plants included in the trial (550), and the expectations of success, a combined number of <br />(300) serviceberry and chokecherry plants within the trial during 2016 (from seed and live <br />plantings) will be considered a successful demonstration of Coloywo's ability to proceed <br />further with additional plantings. Supplemental planting of serviceberry and chokecherry <br />will be initiated in year 2012 should survival of the 2011 plantings be less than 350 <br />stems/acre. Alternative methods for demonstrating compliance with the establishment of <br />Tall Shrub habitat in South Taylor will be initiated with the Colorado Division of Wildlife <br />during 2013, should failure of this trial continue. <br />f) Containerized serviceberry and chokecherry plants will be placed through the weed <br />barrier by hand (or by mechanical means if practical and economically feasible) as per best <br />practices with regards to depth, etc. Proper planting holes are important in transplant <br />survival. Holes should be two to three times wider than the root ball. If the soil is clay and <br />the sides of the hole become glazed during digging, the sides of the hole should be <br />roughened with a spade. Holes should be prewatered before planting in dry soils. This <br />prevents initial postplant water from migrating away from the root ball. Every effort will <br />be made to plant at the same depth that the tree or shrub was growing in its previous <br />location. Damaged roots will be clean-cut with a sharp blade prior to planting. If any <br />circling or kinked roots are discovered during the transplanting procedure, they will be <br />severed to prevent future girdling of the plant. Every effort will be made to orient the tree <br />or shrub in the same direction, relative to the sun, as it was facing in the previous location. <br />Plantings will be performed in the fall by properly trained personnel. Serviceberry and <br />chokecherry planting densities will be one plant every four linear feet (1/2 serviceberry, <br />1/2 chokecherry) within a row. <br />g) Colowyo will place contour furrows immediately above approximately every third <br />fabric row (approximately every 66 feet). The trial will exhibit alternating bands of <br />modified Sagebrush Steppe mix (approximately 17 feet), fabric/containerized plantings (4- <br />5 feet wide), modified Sagebrush Steppe mix (approximately 17 feet), fabric/containerized <br />plantings (4-5 feet), modified Sagebrush Steppe mix (approximately 12 feet) contour <br />furrow (approximately 5 feet). This pattern should allow for specific emphasis on <br />containerized plantings establishment while minimizing the risk of excessive erosion <br />during the period of early establishment of the trial area. <br />Rule 4 Performance Standards 4-52 Revision Date: 9/19/18 <br />Revision No.: MR -193 <br />