My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
REP08531
DRMS
>
Back File Migration
>
Report
>
REP08531
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 11:38:23 PM
Creation date
11/26/2007 11:54:32 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Report
Doc Name
HISTORIC RECORD STUDY AREA VEGETATION AND PRECIPITATION CHARACTERIZATION 1997 WEST ELK MINE SOMERSET
Permit Index Doc Type
REVEG MONITORING REPORT
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
28
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
~. SAMPLING METHODOLOGY <br />MAPPING <br />A map of the study area at 1:1200 scale (I"=100') was constructed from aerial <br />photography to delineate the study area in 1996 (Savage and Savage, 1996). On a <br />gridded overlay of the map, a Cartesian coordinate grid (10x10 feet) was established. <br />Computer generated random numbers were used to establish a pool of random x,y <br />coordinates. Fifty random sample locations were established within the study area. <br />Sample sites were located in the field through compass triangulation and pacing from <br />known landmarks. Transect orientation was randomly determined by a spinner. Figure <br />1 illustrates the 1997 vegetation sample transect locations in the study area. <br />FIELD SAMPLING <br />Timing <br />Vegetation sampling was conducted June 25 and 26, 1997. This time period coincided <br />with maximum biomass development of the majority of plant species and occurred <br />during or immediately afrer anthesis of the majority of herbaceous flowering species. <br />Herbaceous production sampling occurred prior to significant drying of graminoid and <br />forb species. The historic record study area has been fenced since August 1996, to <br />exclude grazing by domesticated livestock. Evidence of winter elk grazing was found <br />within the study area. Light grazing by horses occurs adjacent to the study area and <br />other cleazed areas on the terrace. - <br />Vegetation Sampling <br />Four vegetation parameters were sampled to evaluate the vegetative condition of the <br />study area. Vegetation cover, total herbaceous production, species composition, and <br />woody plant numbers were the parameters for which quantitative data were collected <br />from the historic record vegetation community in 1997. <br />Ve~tation Cover <br />Vegetation cover was estimated by the use of the point-intercept method. An ocular <br />point frame (ESCO Associates) was used to minimize instrument error and maximize <br />precision and observer accuracy. Cover transects were 25 meters in length, with two <br />sample data points collected at 1.0 meter intervals along the transect on opposite sides <br />of the transect centerline, 1.5m apart. Transect direction was established randomly. In <br />no event were transects allowed to extend within ten feet of the study area boundary to <br />minimize impacts from "edge effect." <br />_~ <br />
The URL can be used to link to this page
Your browser does not support the video tag.