Tdble 4. Ui-it ich i is srricta Coimiiuni ty ry[)e \it,:j UL'scription 



SOIL TlXTURE: 



5.. sandy loams; Tj „ fine sandy loams; 37, silt loaiiis; 



5;; sandy clay loams 2^'.:, silty clay loams; 11'' clay loams; 16' clays 



SLOPE-SLOPE ASPECT 



Mean ; 



Standard deviation: 



Rdni^e: 



Sites tiavinq: 



Positive slooe-slope aspect values: 

 Slope-slope aspect values of 0: 

 ieqative siope-slope aspect value s: 



X = -0.01 



S = 0.03 



-0.11 -J, 04 



bZ 



n 



The typical Dist c.t. site is a salty flat above a creek, though it can 

 sometimes be found in coulees, especially below ponds. Soil electrical con- 

 ductivity values of greater than 10"-^ mhos/cm are common. Sodium absorption 

 ratios of three soil samples from this community ranged from 58 to 922. Soil 

 texture is variable, but the absence of loams is odd. 



Ugar et al . (1969) found D_. stricta to have a very wide salt tolerance. 

 While D. stricta does not require excessive salts for normal growth, it appar- 

 ently is not a good competitor in areas of low salinity. 



Distichlis stricta can be found in uplands, often in badlands and sometimes 

 in association with Agropyron spicatum , Eriogonum pauciflorum or some Chenopods , 

 but Distichlis stricta presence should not be confused with Distichlis stricta 

 c.t. 



38 



