Laserfiche WebLink
<br />v <br />• Biomass data collected in the 1979 growing season is not consistent <br />with the cover data and other characterizers of the vegetation. It <br />is believed that the sample size for biomass data collection must be <br />I increased in order to minimize the variance encountered in the treatments <br />sampled. <br />Species Evaluation Plot <br />The purpose of this plot is to identify the best grasses, fortis, and <br />shrubs adapted to the waste material at this site. P1any species not <br />appearing in the Main Plot seed mixture are seeded 'Here to permit the <br />l investigation of a wider selection. of plant materials. Because of the <br />nature of the plot, the plants are.subject-only to intraspecific competi- <br />tion for moisture and nutrients. intraspecific competition is often <br />• more severe than interspecific competition, because plants of the same <br />species seeded together have very similar moisture and nutrition require- <br />, <br />j menu . A complete test of a species' success will require the interspeci- <br />fic competition of growing in a mixture of species. Table B con td ins the <br />species rated good to excellent in vigor and survival. <br />I <br />' Slope Plots <br />The most obvious dif`erenc_ betwee^ the two ;ets of ;lope plots was <br />the 12ck of vegetation on the steeper 1.5:1 plot. The 3:1 plots support <br />a much mare vigorous growth of seeded species. EXamina=ion of the steeper <br />1.7:1 ;lope plot n25 ;n0'Nn thet t.7e aD;2nCe J' ~/egeta C'. on appe2rS tJ be <br />the result of erosion beneath the mulchinc materials and a'.so the higher <br />beet load the steeper slope dCCUfilUl3te;. the ;lack materidi bene2th the <br />mulch is extremely erodible when placed dt a grade this acute. The 1.5:1 <br />• <br />