Laserfiche WebLink
<br />- III IIIIIIIIIIIIIIII ~~cE~v~® <br />NOV 2 31983 <br />STIPULATION ~~ 7 ( 2.04.10 ) MINED LAND RECU',MATION 01VISIOPI <br />Colo. Dept of Naturzl F.eswrces <br />Prior to any analysis an on site observation was <br />carried out to determine the communities which would be <br />disturbed and to ensure the reference area which was <br />randomly plotted on the vegetation map would be represen- <br />tative of the overall strata. <br />For each methodology of sampling random number <br />transects were plotted on compass lines using a random <br />number table. For woody communities, the point center <br />quarter method was used to determine species and absolute <br />density. In this method a single straight line called the <br />compass line is plotted on the vegetation map along this line <br />are sampling points which are randomly plotted before entering <br />the field. Four quarters are established at each sampling <br />point by a line running perpendicular to the compass line <br />through each sampling point. The closest tree in each <br />quarter to the sampling point are measured, the four distances <br />of a number of sampling points are averaged. This gives us <br />a mean distance and when aquared and divided by 100 gives <br />the number of trees per 100 m2, or absolute density. <br />Cover data for both herbaceous and woody communities <br />was calculated by the line intercept method. In this <br />method a single compass line is plotted prior to entering <br />the field along the compass line are random length transect <br />line which intersect at random sampling points. The percent <br />of cover is then calculated along the entire transect <br />line by comparing the amount of cover versus the lack of <br />