mid August, yet it had the barren look of a pasture that had been heavily 

 grazed since spring. Few grass inflorescences appeared and the height of 

 bunchgrasses (Stco, Bogr, Cafi) was reduced to an inch or two. The pro- 

 ductivity data should be evaluated with consideration of the combined ef- 

 fects of drought and grasshoppers. 



Productivity Tables 



Means and standard deviations are in kilograms per hectare. For pounds/ 

 acre multiply by 0.892. N is number of plots necessary for a sample mean 

 within twenty percent of the true mean eighty percent of the time. 



Following oven-drying, samples of the dominant species in each exclosure 

 have been ground, screened, and preserved for possible later analysis of chem- 

 ical composition. 



Table 29 Distichlus stricta Community Type Productivity 



Homogenous (.05) no 



68 



