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Beltline Reference Area #3 <br />Absolute and Relati ve Cover Sample Means; 1998-2001 <br /> 1998' 1999 2000 2001 <br />Absolute Noxious Cover 2.8% 16 5°ro 5.0% 2.5% " <br />Relative Noxious Cover 28.2% 34,7% 9.5% 5.3% <br />Absolute Grass Cover 5.6% 14.3% 29.3% 25.7% <br />Relative Grass Cover 57.1% 30.0% 55.7% 55.1% <br />Absolute Forb Cover 1.6% 16.8% 18.3''/0 18.5% <br />Relative Forb Cover 16.3% 35.3% 34.8% 39.6% <br />Total Vegetation Cover 9.8% 47.5% 52.5% 46.8% <br />'1998 was the first growing season for this stand, which <br />makes comparison of absolute cover values between <br />1998 and subsequent years relatively meaningless. <br />'"Reduction in noxious weed cover between 1999 and <br />2001 is significant at the 99% level of statistical <br />confidence. <br />Figure 5 -Beltline Reference Area #3 Absolute <br />Cover Trends; 1998-2001 <br />m` 60.0" - --- - - - - - ~-. Absolute Noxious <br />'o 50.0"'~~ '~ ,/'` ~x ~ Cover <br />~ <br />~ <br />~ 40.0°.• - ~ ! -r-Absolute Grass <br /> 30.0~'~ Cover <br /> <br />y <br />20.04 <br />,, ~ • <br />. <br />- Absolute Forb <br />a 10.0" ~' ~~- - - - <br />~ Cover <br />e 0.0°, I- -~~ -- - --- - `~ -+~-Total Vegetation <br /> 1998' 1999 2000 2001 Cover <br />TABLE 10 <br />