2010-02-01_REPORT - M1983194 (2)

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production for that particular site. The scientific and common names of the plant species encountered within each well pad site are also presented in these tables. Well Pad Site 1A-411I: The ground cover data in Table 6-6 is summarized by class of vegetation and cover type from data presented by plant species or cover type in Table A2. The production data presented in Table 6-7 is summarized from the annual above-ground vegetation biomass production for each plant species as shown in Table A2. The species composition data presented in Table 6-8 is summarized by class of vegetation from the percent composition of each plant species encountered as determined by each species contribution to total biomass production as shown in Table A2. The following tables compare the data collected in 2009 for well pad site lA-411I to data collected from previous years as well as data collected in 2009 from nearby native rangelands. Table 6-6 - Ground Cover (%) for Well Pad 1A-4HI, July 2009 Change 2009 Native Similarity w/ 2009 2007 2008 2009 2008 to 2009 Rangeland Native Rangeland Perennial 24.5 34.7 30.9 -10.9% 26.05 +15.6% Grass Perennial 5.3 14.9 16.7 +10.7% 6.55 +60.7% Forbs Annual 1.4 0.0 0.3 +100% 1.00 -70.0% Grasses Weedy Forbs 14.3 1.0 0.0 -100% 0.25 -100% Shrubs 9.5 8.7 12.4 +29.8% 19.70 -37.0% Moss/Lichens 0.0 0.0 0.0 0 9.55 -100% Vegetative 4.0 12.1 14.4 +15.9% 13.95 +3.1% Litter Bare Ground 35.4 22.9 25.3 +9.4% 22.95 +9.2% Rock 5.6 5.7 0.0 -100% 0.00 10% Total 100 100 100 --------- Table 6-7 - Biomass Production (lbs/ac) for Well Pad IA41H, July 2009 Change 2009 Native Similarity w/ 2009 2007 2008 2009 2008 to 2009 Rangeland Native Rangeland Perennial 99.90 280.75 280.38 -0.13% 325.18 -13.7% Grass Perennial 17.90 87.34 121.21 +27.9% 106.01 +12.5% Forbs Annual Grass 6.30 0.00 2.94 +100% 15.53 -81.0% Weed Forbs 37.80 7.25 0.00 -100% 6.52 -100% Shrubs 27.30 77.24 98.97 +21.9% 153.71 -35.6% Total 189.20 452.58 503.50 +10.1% 606.95 -17.0% 2009 Annual Report 17 of 33