Table 20. Yucca gl auca Community Type iite Description 



Mean: 



Standard deviation: 



Range: 



Sites having: 



Positive slope-slope aspect v.ilues: 

 Slope-slope aspect values of 0; 



The Yugl c.t. site occurs on usually steep, warm, well drained uplands. 

 X- glauca distribution may be related to the presence of indurated bedrock 

 and soils showing little expression of pedogenic activity. Soil parent 

 materials are often sandstone or scoria. More samples might have led to 

 a warmer average slope-slope aspect value. 



Frequent associates with Yucca glauca are Calamovilfa longi folia and 

 Andropogon scoparius , and the Ansc-Calo c.t. may be most closely associated 

 with this type. Slope-slope aspect values for the two type sites do not 

 differ significantly. Most other site factors for the two type sites are 

 similar, but slopes are significantly steeper (0.02 probability level) for 

 the Yugl c.t. sites. 



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