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<br />Request For Phrase !ii Bond Relense dr Tn enn mile Coral Cornpan}~'s Eckmnn Pnrk & ,lLnz ! drens <br />' The diversity of plant species in each area was evaluated using data acquired from the point- <br />intercept transects. Data from the transects was used to determine the relative cover of each <br />species detected (Equation 2). <br />' (2) <br />Relative Corer of Species ,Y = ~ Comer of Species X <br />Total Vegetative Cover <br />' Production was determined by hand clipping three separate one-half square meter quadrate plots <br />along each 50-meter cover transect at meter-marks 12, 16, and 40. Plot placement was randomly <br />selected prior to submittal of tlme approved sampling protocol. Additionally, [he first productiotm <br />' plot (meter 12) on each transect was not clipped until after the cover sample-point at that <br />particular portion of the transect was taken. Vegetation was clipped and separated by life-foram <br />(perennial grass, annual grass, perennial forb, undesirable perennial forb, annual forb, and <br />' biennial forb) and the single species alfalfa. Clipped vegetation was initially separated and <br />weighed to the nearest 0.1 granm with the corresponding "wet" weight recorded. The three plots <br />per transect were then averaged, resulting in an individual production value per sample <br />' (transect). The "wet"weights for each sample were utilized to determine that an adequate number <br />of samples had been collected. The clipped vegetation was then oven-dried and re-weiglmed as a <br />field "dry" weight. The dry weights were converted to pounds per acre for the Pasture Reference <br />' Area (Table A-6). <br />Fifteen transects were initially conducted prior to evaluation of sample adequacy. Sample <br />' adequacy for vegetative cover and biomass production on the Pasture Reference Area was <br />determined using CDMG's recommended hypothesis testing based sample size fornmula (from <br />Kupper and Hafner, 1989) (Equation 3). <br />' (3) <br />Nm (d Q~z <br />1 Where: <br />Nm = the minimunm number of transects or quadrants needed, <br />to = tlme (a = .10) t-table value for asingle-tailed t-test with (n-1) degrees of <br />freedom, <br />tp = the (a = .25) t-table value for asingle-tailed t-test, <br />s'' = the sample variance, <br /> <br />' ZOOI Bnsetinz Vegetarian Srudy~ -Empire Minel9fl5/October 18, 4001 A-2 <br />