Laserfiche WebLink
Edna Mine Vegetation Final Bond Release Monitoring 2005-2006 <br />successful for that parameter. In order to make a direct comparison, the sample <br />size(s) must meet population adequacy requirements. Statistical testing for <br />population adequacy will be performed as described in the Bond Release <br />Guideline. <br />If the parameter sample mean for the reclaimed area is less than 90% of the <br />standard, statistical testing may be used to demonstrate that the difference is not <br />statistically significant. When this occurs, appropriate statistical tests may be <br />performed for each monitored vegetation parameter and comparison to its <br />release standard values. Either non-parametric or parametric testing may be <br />used to demonstrate that the minimum standard for each vegetation bond <br />release parameter has been met. <br />Hypothesis testing as described in the Bond Release Guideline is the first option <br />that may be used when the reclaimed area is less than 90% of the standard. The <br />second option that may be used is the one-sample t-test as described in the <br />Bond Release Guideline. <br />RELATIVE IMPORTANCE CALCULATIONS <br />Relative Importance of species is used to determine whether the herbaceous <br />diversity standards are attained in the areas that were topsoiled. Relative <br />Importance (P;) is calculated from relative cover information as follows: <br />H'= -~ P; log P; <br />Where: <br />P; =relative cover percentage of each species. <br />Each value of Pi is then divided into H' to determine the percent contribution of <br />that species toward the diversity standard. <br />Habitat Management, Inc. 16 3/23/2006 <br />