Laserfiche WebLink
<br />Total Plant Ground Cover will be measured as non-overlapping foliaz cover. Non-overlapping <br />is defined as plant cover below a height of 4.5 feet, with only the firs[ plant "hit" being <br />recorded. The first "hit" is recorded for the first type of cover intercepted by the sample point <br />(i.e., plant species, rock, litter or baze ground). Noxious weed species and other problem <br />plants, particularly annuals (e.g., cheat grass), will be recorded but will not count toward total <br />vegetation cover. Annual plants that aze not considered weedy may be included in Total Plant <br />Ground Cover measurements, with their total contribution [o relative plant cover not to exceed <br />l0%. <br />Revegetated community Habit Diversity will be evaluated by recording Tota! Plant Ground <br />Cover data by plant species. Recording data in this fashion will allow evaluation of inter-habit <br />and infra-habit species diversity using simple analyses without further measurement. <br />Woody Stem Density will be measured in the permanent revegetation communities concurrently <br />with Total Plant Ground Cover. To measure the density of woody stems within these areas, the <br />first step will be to delineate these areas on topographic maps. Belt transects 50 meters by 2 <br />meters will be randomly located and chosen within the potential liability and bond release area. <br />Woody Stem Density within each transect will be ebsetved and recorded for all woody plant <br />species occurring within the transect. <br />All plant species occurring within the vegetation sampling area will be observed and recorded. <br />A master list of plan[ species, including :::ientific and common names, will be developed. This <br />information will be included with revegetatior. liability and bond release requests for each <br />reclaimed area. <br />Statistical adequacy of samples will be determined. Total Plant Ground Cover sample <br />population mean and standard deviation will be calculated for each discrete reclaimed area <br />sampled. Adequacy of sample populations will be determined in accordance with the standazd <br />formula for calculating sample size: <br /> <br />Where: <br />N = number of samples collected. <br />t =the two-tailed distribution value for 80% confidence with N- l degrees of freedom, <br />s =variance of the estimate calculated from the initial samples, and <br />x =the mean of the estimate calculated from the initial samples. <br />Sample populations will meet or exceed minimum size requirements for revegetation success <br />sampling. A minimum of 15 and a maximum of 50 Total Plant Ground Cover samples will be <br />taken within each proposed revegetation liability release area. <br />Amencan Sala. L.L.P. 5- ( 7 <br />Joil Conscrvauon. Flnsion and Scdimcnt <br />C~nuol. n:clamm~on and Reveecuuon Plan <br />~h:~obcr ?tl. 149tl <br />Revised Apnl y. IY99 <br />