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<br />Table 3. Comparison of summary cover data: OW and new airport reference areas. <br /> <br />Cover Type New Ret. Area <br />(2005) Old Ref. Area <br />(2000) <br />Non-vegetated 65.7 79.7 <br />Total vegefation cover 34.3 20.3 <br />Noxious weeds ~ ~ 5.6 ~ 0,2 <br />Annual grasses 0 0 <br />Annual sorbs 11.t 2.4 <br />Total annuals 11.1 ~ 2.4 <br />Shrubs 1.2 3.3 <br />Perennial grasses 2.1 9.6 <br />Perennial (orbs ~ 14.2 4.8 <br />Total perennials 17.5 17.7 <br />• <br />/ 1 <br />J <br />(Revised August 2006) Attachment 2.04 .10 - 4 -11 <br />