PERMFILE41090

• Permit No: C1981021
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: APPENDIX B VEGETATION STUDIES
• Media Type: D
• Archive: No

Table 5. Mean production the standard deviation (S. D.) for the reference area
grassland cora;~unity. Samples collected in J•~ly 1980. n = sample size.

Mean Production ^'e an Production Percent of
Species (grams/m2)±S.D. (lbs/acre)±.S.D. Total Biomass
n=24 n=24
PERENNIAL GROSSES
AND SEDGES
Agropyron smithii 3.629 ± 1.468 32 ± 13 17.77
BouteZoua graciLis 0.388 ± 1.301 3 ± 12 1.90
Calamagrosiis montanensis 1.805 ± 1.632 16 ± 15 8.84
Carer filifolia 0.197 0.666 2 6 0.96
Carer spp. 1.138 ± 1.528 10 14 5.57
XoeZeria macrantha 0.387 ± 0.873 3 ± 8 1.90
Poa sandbergii 0.014 0.067 <1 i 0.07
Oryzopsis hymenoides 0.446 ± 0.662 4 ± 6 2.18
Stipa comata 2.584 2.350 23 21 12.65
Sub-Total 10.597 - 3.839 95 34
PERENNIAL FORBS 4.058 ± 2.235 36 ± 20 19.87
SEMI-SHRUBS '

Artemisia frigida 1.066 1.865 10 17 5.22
Ceratoides Za~2ata 2.314 ± 2.922 21 ± 26 11.36
Cutierrezia sarothrae 0.641 ± 1.213 6 ± 11 3.14
Sub-Total 4.026 ± 5.359 36 48
SHRUBS
Chr?asothannzus nauseosus 1.650 ± 2.807 15 ± 25 8.08
Tetradymia canescens 0.090 ± 0.438 1 ± 4 0.44
Sub-Total 1.739 ~ 2.787 16 ± 25
TOTAL PRODUCTION
20.419 5.397 182 48
9 i4.`~I

15