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The operator states that they will broadcast, drill and hydro-seed the area <br />depending on the site characteristics. If they drill seed, what rate are they going <br />to drill? If the operator plans on broadcast seeding, they will need to double to <br />seeding amount. <br />3.) Hydomulch: The operator states that they will hydromulch steep slopes and high profile areas. <br />What exact criteria will be used to determine when they will utilize the <br />hydromulch method; how steep of slopes, and which high profiles areas? <br />Approximately how many acres will be hydromulched. <br />4.) Revegetation of acidic overburden storage areas: <br />Overtime, the roots of the established plant species may pierce through the clay <br />cap that will be placed over the acidic overburden. This could impact the long <br />term success of the plant species establishment. The operator will need to <br />describe a plan to lessen the acidity of the top layer of the acidic overburden with <br />a lime amendment to help ensure long term vegetation establishment. <br />5.) Tree salvaging: <br />How will the operator salvage the various tree species described in the plan? <br />What size of trees will they salvage? If the trees that are salvaged are not <br />transplanted immediately on another site, where will they be stored and how will <br />they ensure their survival? <br />North Cresson Mine Area Viewshed: <br />1.) Aspen transplanting: <br />The operator plans on extracting mature "pads" of aspen with a front end loader <br />from a stand of aspen/Engelmann spruce trees below the mine slope. These pads <br />will be transplanted on the re-graded mine slope above. <br />Overall, the basic plan appears to be feasible for establishing an aspen forest on <br />the regarded mine slope. It is logical to use transplanted aspen that are growing <br />near the mine area because the trees are acclimatized to the site, where nursery <br />stock trees may not be. <br />In order to better understand this plan, what size are the trees that make up the <br />pads of aspen? It may be costly to transplant large aspen trees, and it is unknown <br />how well mature aspen trees can be transplanted because of the major <br />disturbance that will take place on their extensive root structure. Younger <br />saplings, possibly 1-2 meters in height may be easier to transplant and have a <br />higher survival rate than larger more mature aspen trees. <br />Studies have shown that aspen regeneration is primarily done through root <br />sprouting and suckering. In order to initiate this form a reproduction, the foliage <br />must be disturbed in some fashion. In nature this is caused by a fire, wind, frost <br />and various other foliar disturbances. These disturbances can be mimicked by <br />pruning the saplings foliage partially or spraying the foliage lightly with a <br />herbicide.