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<br />ZINC HILL OBSERVATIONS
<br />Zinc Hill has an asp*ct of E -NE direction and has a slope of about 2:1.
<br />This hill was disturbed many years ago and very little reclamation has been done
<br />with it. The species that were planted in 1972 were Ponderosa Pine and Western
<br />Red Cedar or commonly called Juniper. Due to the lack of soil material, the
<br />growth of the seedlings is limited.
<br />A count was made of the Ponderosa and Cedar on 8/28/79, along with their
<br />heights. No records were kept on the seedlings at the time of planting, so
<br />no definite comparisons can be made.
<br />Ponderosa Heights
<br />29,22,14,24,36,32,23,20,9,10,
<br />25 ,23,33,15,27,25,24,23,24,12,26,
<br />24,23,25,10.
<br />Total number of seedlings
<br />25#
<br />Average Height
<br />22.23 Inches
<br />Cedar Heights
<br />42,24 ,28,34,28,30,20,38,34,32,32,31,
<br />33,20 ,19,23,9,35,15,47,21,11,8,7,16,
<br />18,26,16,14,7,7,17,24,20,37•
<br />35#
<br />23.5 Inches
<br />Some comparisons can be made between the different areas on Zinc Hill where
<br />the trees were planted. Some of the trees were planted on the uppermost part of
<br />the hill, right along the base of the footwall.. Within seven these trees have
<br />shown more growth than the trees in the other areas. Over the years soil material
<br />has washed down from the top of the footwall to form a soil layer of about 8 ".
<br />Farther down the hill where the gypsum bed lies, the trees are much smaller.
<br />10. Shown here is a Juniper seedling planted at the base of the footwall.
<br />The Juniper is approximately 30" high.
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