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<br />'~ ~ Abs::i.,te and Re'au ve Cover Sa~i,:~e (vteaos 198-2001' <br /> 1998 1999 2000 2001 <br />Absolute Noxious Cover 41.0?! 1 0°io 7 0°i° 2.0% <br />Relative Noxious Cover 59.4°-~ 3 0?;~ 13.7°/0 4.3% <br />Absolute Grass Cover 1O.O~b 25.0% 36.0% 3G.O% <br />Relative Grass Cover 14.5;'0 75.8% 7O.G% 7G.G% <br />Absolute Forb Cover 8.0% 0.0% 3.0% 1.0% <br />Relative Forb Cover 11.6% 0.0% 5.9% 2.1 °10 <br />Absolute Shrub Cover 10.0% 7.0% 5.0% 8.0% <br />Relative Shrub Cover 14.5% 2t2% 9.8% 17 p°i° <br />Total Vegetation Cover G9.O% 33 0% 51 0% 47 0°~~ <br />"Data is from only 2 transects each year, and <br />as such, statistical confidence intervals were <br />not calculated. <br />Figure 7 - Beltline Reference Area #4 Absolute Cover <br />Trends; 1998-2001 <br /> 80.0 : - <br /> .- Total Vegetation <br />~ <br />~ 70.0; ~ Cover <br />° G0.O~4 •- Noxious Cover <br />~ 50 <br />0% <br /> . <br />~ 40.0°i ~ <br />~ <br />• •- Grass Cover <br />° ° <br />v <br />, 30.0 <br />i5 , <br />_ <br />a 20.0°i. ~ • -Non-Noxious Forb <br /> 10.0°/~ ~y <br />_X Cover <br /> 0.0°/~ ~_ ~ <br />_ <br />~_=-# a -- Shrub Cover <br /> <br />Noxious cover declined dramatically following initial <br />treatment in 1998, and has remained low Grass cover <br />increased sharply following initial treatment, and appears <br />to have stabilized in 2000 <br />TABLE 1a <br />