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1. Plate 2 (attached) has been revised clearly delineate the boundary <br />between the pinyon-juniper and bottomland vegetation communities. <br />An area separating two areas of bottomland vegetation was <br />essentially barren of vegetation and therefore was not sampled. <br />2. Adequate sample size for woody plant density was calculated using <br />the formula nmin - tdsx j2where <br />nmin -minimum sample size <br />s =sample standard deviation <br />x =sample mean <br />d = 0.1 <br />t .1.282 for woody habitats (pinyon -juniper) <br />1.645 for herbaceous habitats (bottomland) <br />Distance values for each of the 40 quarters along the 10-point <br />transects (10 in pinyon-juniper and 5 in bottomland) were averaged to <br />determine the average distance for each transects. Sample standard <br />deviation was calculated from these transect averages. Results are <br />shown below. <br />Pinyon-Juniper Bottomland <br />x 1.18 (m) 1.28 (m) <br />s 0.67 0.63 <br />n 10 5 <br />nmin 53 66 <br />3. Qualitative Description of Vegetation Communities. <br />Bottomland <br />The vegetation community designated as bottomland occurs within <br />the loamy foothill range site as defined by the Soil Conservation <br />Service. Typical (climax) vegetation of this area is believed to have <br />been a grassland, dominated by blue gram a, with other grasses and <br />fortis and shrubs (including snakeweed) occuring in lesser amounts. <br />This type of community typically occurs at lower elevations near <br />pinyon-juniper woodlands, and often intergrades with them <br />