Table 4. Agropyron smithii/Bouteloua gracilis Community Productivity (kg/ha) 



Agsm Bogr Litter z Productivity 



1977 144± 45 44± 13 578± 166 202± 47 



1978 1062± 132 414± 75 363± 65 1672± 142 



1979 464+ 71 130± 24 994± 178 674± 70 



1980 7.2± 3.5 193± 84 1187± 152 21 7± 84 



1981 238± 48 280± 36 841 ± 109 759± 70* 



* Including 201 kg/ha of therophyte production, mostly Festuca octoflora. 



T^ble 5. Bouteloua gracilis/Agropyron smithii Community Productivity (kg/ha) 



Bogr Agsm Litter E Productivity 



1977 12 ± 3.6 3.6 ± 2.2 38 ±10 16 ± 5.9 



1978 203 ± 52 1610+228 280 ± 47 1 955 ± 251 



1979 134 ± 24 528 ± 62 1460 ± 195 674 ± 65 



1980 258+61 72 ± 35 1758 ±316 331 ± 48 



1981 244 ± 36 522 ± 64 1356 ± 264 768 ± 54 



Table 6. Stjga comata/ Bouteloua gracilis - Carex filifolia Community Produc- 

 tivity (kg/hal 



Stco Bogr Litter e Productivity 



