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• are saline loams and <br />the surface layer of <br />inches thick. The s~ <br />loam about 14 inches <br />brown alkaline silty <br />or more. <br />clay loams of the Arvada series. Typically, <br />Arvada soils is pale brown loam about 3 <br />~bsoil is strongly alkaline brown silty clay <br />thick. The substratum is light brown or <br />clay loam extending to a depth of 60 inches <br />ESTIMATES OF STANDING CROP BIOMASS <br />Tiedman and Terwilliger (1978) estimated the percent species <br />compositions and total biomass for each phyto-edaphic unit in <br />the Piceance Basin by averaging the estimated biomass recorded <br />in the field. To obtain the estimations, a double sampling tech- <br />nique was used. Tiedman and Terwilliger (1978) estimated 4 to <br />10 plots in the field for each stand; in addition, one plot was <br />clipped and weighed and the data used to develop a ratio to con- <br />vert the estimated weights to approximations of the true standing <br />• crop biomass. This data is presented in tabular form as follows <br />with their equivalents in the Colony permit areas: <br />Table J22 Aspen Forest/Pachic Dark Brown Loams (Aspen <br />Woodland) <br />Table J23 Douglas-fir Forest/Dark Brown Gravelly Loams <br />(Douglas-fir Forest) <br />Table J24 Low Elevation Pinyon-Juniper/Shallow Very Grav- <br />elly Sandy Loams (Pinyon-Juniper) <br />Table J25 Aigh Elevation Big Sagebrush Dark Brown Loams <br />(High Elevation Big Sagebrush) <br />Table J26 Low Elevation Big Sagebrush/Moderately Deep <br />Loams (Low Elevation Big Sagebrush <br /> <br />J-15 <br />