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COVER, FRDQiIENCY AND PRODUCTIVITY <br />Cover data are presented by species, life form and quadrat for the renege- • <br />tation plot in Appendix B, Part 1. Basal coves- and canopy is presented <br />for all species. Percent cover estimates for bare ground and litter- <br />rock derive from basil cover estimates (i.e., F:ercent mover remaining <br />after total vegetation cover is determined is then appropriated to bare <br />ground and/or litter-rock). A Dover sumnsry table for all quadrats as <br />well as frequency detP*m~*+ations is provided at the end of each oonguter <br />print-out. Production data are presented key species and life fonn for <br />each excloSUre Zn ArL]~PTt~IY B, Part 2. Oven dr}~ weights are presented <br />for all species. Wet weights and percent moisture content are presented <br />for all species except shrubs. A summary of data over all trarLSects <br />is provided at the end of the print-out. <br />Cover and production data were evaluated for sampling adequacy using the <br />statistical formula: <br />Nmin > 2 (s z)2 <br />(d x) 2 <br />N ~ = m~~~~m+ rnmiber of cover quadrats or production exclosures <br />necessary to achieve sampling adequacy. <br />x =sample mean of production per exclosure or percent basal <br />Dover per quadrat. <br />s =sample standard deviation <br />z =statistic (z = 0.84 for 808 confidence). <br />d =amount of reduction it is desired to detect (d = 0.2 for <br />808 confidence). <br /> <br />Substitution of the actual sample size for Nn~~ and solving for z provides <br />a means for detPn++~~~*+g the actual confidence :Limit achieved. Results <br />of sampling adequacy evaluation are provided in Table 3. As shown by the <br />Table, all sample data are adequate with mnf'idence levels ranging from • <br />87.5 - 99,38. <br />-14- <br />