Table 27. Shetin_ercri_a_ j rr en t_ ;■ / Sj^hoj^ art.arisana Cuiimunity Type, ShephenJj i .ira-jii' 



Sjrajpjioj^icarpqs occnicn talis '-linwiumty Type, atvi Cornu^s stoloni'ferj Phrase Site DeicrTption 



SOIL TEXTURE; 4% sandy loams; 4, fine sandy loams; 41.', loams; 18: silt loa/ts 



?:■; silty clay loams; 22" clay loams; 42 clay 



SLOPE-SLOPE ASPECT 



Mean ; 



Standard deviation: 



Range: 



Sites having: 



Positive slope-slope aspect valu'is; 



Slope-slope jspect valut-s of 0: 

 negative slooe-slope aspect values : 



SLOPE 



Mean; 



Standard deviation: 



liOR! ZO:iTAL CC : iriG'dRATIO;i: 10Q-, concave 



SLOPE POSITIO.^i: ''00''-^ co'jliss 



"iWZING PRESSURE: 



DISTAfJCE TO STOCK '.vATER 



I'ean; 



Standard 'deviation: 



The Shar/Syoc-Rosa c.t. and Cost phase are found usually in steep-banked 

 coulees where special conditions exist. These coulees not only receive extra 

 moisture from over-ground runoff during and after rains, but they also catch a 

 very significant amount of drifting snow. Factors which cause drying are re- 

 duced due to shading and greatly reduced wind velocities. This type most of- 

 ten occurs in the upper reaches of coulees where embankments are steeper and 

 where flash flooding is not so severe. Soils tend to be heavy. 



The Cost phase is found only in the more moist and most protected of sites. 

 Coulee banks are always steep and usually are on a cool aspect. 



Many site descriptors useful in characterizing range sites do not serve 

 well for Shar/Syoc-Rosa c.t. sites. Slopes and aspect are impossible to deter- 

 mine for a community that covers both sides of a coulee and bottom. Grazing 

 use and History are difficult to determine and seem to be little related to 

 this type's occurenct3. 



61 



