Laserfiche WebLink
www.bio-geo.com <br />• <br />Table 6. Summary and comparison of vegetation production data measured at Dryland Pasture <br />reclaimed area and Dryland Pasture reference area, 2007. <br /> <br />Production lb/acre Dryland Pasture <br />Reclaimed Area 2007 Dryland Pasture <br />Reference Area 2007 <br />Noxious weeds* 8.2 0 <br />Annual rasses* 18.9 0 <br />Annual forbs* 44.2 165.7 <br />Total annual lants* 57.6 165.7 <br />Sub-shrub: broom snakeweed* 0 18.3 <br />Shrubs* 0 1.5 <br />Perennial grasses 279.8 17.5 <br />Perennial forbs 16.0 132.8 <br />Total mean production of desirable plants <br />X 295.8 150.3 <br />Standard deviation of z 188.3 89.3 <br />Q =90% of the standard 135.3 <br />Number of samples 35 49 <br />Sample adequacy demonstrated No No <br /> <br />Comparison Statistics <br />Standard Error SE = s/ n 31.83 12.76 <br />SE Satterthwaite approximation) 33.84 <br />Degrees of Freedom df Satterthwaite 43 <br />Calculated t-statistic tj 4.744 <br />Table t-statistic (tt), 1-tailed, P=0.20, df <br />Satterthwaite <br />0.850 <br />*Not counted toward total production of desirable plants <br />3.4 Dryland Pasture, Second Year (2008) <br />A 2008 Vegetation Analysis Plan as submitted to Dan Mathews of CDRMS and approved prior <br />to beginning fieldwork in June 2008. The plan described the study areas, vegetation sampling <br />methods, and statistical analysis procedures. <br />Cover, Dryland Pasture 2008 <br />2008 data for each cover transect are shown in the following tables in Appendix A: <br />Table Al 3: Cover, Dryland Pasture reference area, 2008 <br />Table A14: Cover, Dryland Pasture reclaimed area, 2008 <br />Table 7, below, shows summary statistics for 2008 cover measurements in the Dryland Pasture <br />reference area and the Dryland Pasture reclaimed area, and the statistical data used to <br />compare the reclaimed area means with the standard. <br />17