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Sample Adequacy - <br />• A summary of sample adequacy calculations for the parameters of cover, herbaceous production, <br />and woody plant density is presented in Table 23 (Appendix 1). For monitoring purposes, <br />.achievement of sample adequacy was not critically important. For most of the cover data sets, <br />adequacy was achieved. For herbaceous production and woody plant density, the results of <br />sample adequacy calculation suggest the need for larger plot size. For production, the drought <br />conditions are thought to have increased heterogeneity. Were bond release to be tested during <br />drought times as 2002, production sampling should probably be conducted with three or four 0.5 <br />sq.m. subplots evenly spaced along the cover /woody plant density transect. For woody plant <br />density, the heterogeneity of sample values has always been high. It is likely that enlarging the <br />plot size to 2 x 150 m would be appropriate to reduce the variance in these data sets to the point <br />that (with the help of square root transformation and a detection limit (d) of 0.15 as proposed by <br />DMG) sample adequacy can be achieved. <br />r1 <br />f~J <br /> <br />20 <br />