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<br />Thus using fewer trees, between 40 and 50 trees per acre over the whole area, <br />a tree density much like what is currently there would be produced with cover values <br />in the forested areas only slightly higher than currently exists. This pattern <br />would not be limiting to the tree growth as would occur at much higher densities, <br />and would permit the development of a clumped or cmtagious pattern similar to what <br />is currently on the site. Furthermore, the higher available water capacity of the <br />plant growth medium should permit a sortiewhat higher tree density (where trees are <br />growing) than is currently the case while still permitting adequate shrub and grass <br />growth to protect the soil and provide forage diversity for wildlife. <br />From this model it is therefore concluded that: <br />1. Tree planting should occur on the benches where the plant growth medium <br />depth is not less than about 30". <br />2. Trees should be planted to achieve a mean density of 40 to 50 trees per <br />acre over the whole area to be mined (about 80 to 100 trees per acre in those areas <br />projected to be suitable for tree growth). <br />3. Trees should be planted in a clumped pattern rather than an evenly <br />distributed pattern. <br />4. The available water capacity of the growth medium should be able to support <br />this tree density, even if the mean depth of the growth medium is only about 30". <br />5. This density should not be limiting to grass growth or to the invasion of <br />shrubs (mainly Mountain Mahogany). <br />A DFFINITIQJ ff' Ti~E 6TA~I9-PETIT: It is proposed that Tree Establishment be <br />defined in the permit as survival of a tree for at least three growing seasons and <br />three winters. <br />PA(~ 5 TREE MODEL ETIYDER r1J AhENDhENT EVIDENCE <br />