greater alone the "ocrler forost than other -parts 

 of the forest, it can only "he considered an an 

 enemy of the species. 



8. Associated Species. 



Western Juniper is the only tree that 

 is found associated with Western Yellow Pine on 

 the border, and this tree - due to its & ow growth, 

 intolerance and ability to grow in dry rocky soil - 

 does not compete with the V/estern Yellow Pine, "but 

 rather prepares the ground for it. Because of its 

 open stand, slow growth and uncertain reproduction, 

 itG chief value is for preventing erosion of the 

 soil on the steep slopes and affording slight pro- 

 tection to Yellow Pine reedlingf? . 



9. Local History. 



For a full understanding of the factors 

 and conditions which have a bearing on the exten- 

 sion, either natural or artificial, of the Western 

 Yellow Pine forest out from itep resent limits, the 

 history of v/hat the past has bsnn is absolutely es- 

 sential. Although records and detailed information 

 ars very meagre pr..d .OCTCT r nly several spots in an 

 area over 300 miles rquave. this data shows that 

 sudden and radical changes in rainfall are quite 

 cowmen in this region. Local history of this region 



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