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<br />• <br />2 feet deep, but on this site are usually no more than one foot deep. <br />They occur on slopes of 15 to 60 or 70 percent, mostly on the steep <br />end of the slope spectrum. They are excessively-drained and have a <br />surface layer about 6 inches thick that is a very gravelly loam. The <br />particles less than a #200 screen is usually less thar. 20~ making a <br />rather poor soil nutritionally. Its erosion hazard is quite low. <br />In the process of mining the upper parts of Tracts A, most <br />J <br />of Tract B, and a little of Tract C these soils caill be encountered <br />and those that are deep enough or on gradual enough slopes should be <br />saved. On the whole, these soils will be similar in texture to the <br />limestone materials produced over the rest of the quarry, but will be <br />much less in their clay content. Mixing a small amount of limestone <br />with these materials will improve the nutrient holding capability of <br />the soil and elevate the pF? to about 8.0. <br />In summary, the soils of the Pikeview Quarry were, for the <br />most part, lost by previous mining. The plant growth medium to be <br />produced will not differ greatly chemically or physically from the <br />original materials. Biological activity in these soils initially will <br />be low but with continued vegetation development will increase to a <br />level capable of supporting a reasonably closed nutrient cycling. <br />Erosion hazards will be moderate to high and will require the use of <br />erosion control measures such as contour erosion control terraces and <br />ditches. <br />Supplemental irrigation is not recommended as it will tend. <br />• <br />to create a management dependency in the vegetatior. and a vegetation <br />that will have great difficulty sustaining severe drought. Although <br />irrigation would certainl~~ produce a more dense growth much faster, <br />P-I-4 <br />