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REV16454
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REV16454
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Entry Properties
Last modified
8/25/2016 1:27:52 AM
Creation date
11/21/2007 11:15:19 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Revision
Doc Date
10/25/2005
Doc Name
2005 Revegation Monitoring Report Appendix A Thru H
From
Trapper Mining Inc.
To
DMG
Type & Sequence
SL7
Media Type
D
Archive
No
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amendments was obtained by Trapper from the DMG prior to initiating field sampling and <br />approved by the Division for use at the Trapper Mine for this sampling effort. In this evaluation, <br />the vegetation parameters of production, plant cover, species diversity and shrub density were <br />sampled. These data were then utilized to evaluate the successfulness of revegetation efforts with <br />respect to cover, forage production, species diversity, and shrub density. <br />Transact Locations. To ensure that all of the areas within the two Rangeland Reclamation <br />Blocks, Cropland Reclamation Block and Cropland Reference areas evaluated had an equal <br />chance of being sampled, each reclamation block was treated as a single sample unit and a <br />totally randomized sampling effort was implemented. Utilizing the reclamation maps prepared <br />by Trapper and our GPS unit, the extreme north, south, east and west boundaries of each site <br />sampled were identified according to the 192'7 Colorado State Plan Northam Zone (NAD 2~ <br />coordinate system. The interval used in the state plan coordinate system is based on foot <br />increments. Given the typical real-time accuracy of this GPS unit of plus or minus 18 inches, all <br />of the transact locations were field located at a sub-meter accuracy. <br />Once the boundaries of the reclaimed area were identified, then using a specially prepared <br />computer program which generates random coordinates, the potential transact location points <br />were identified. These coordinates were then entered into the GPS unit and the transact location <br />starting points were marked in the field. At each transact location starting point, the transact <br />direction was determined by selecting a random direction based on the degrees of the compass (1 <br />to 360.Once the orientation of the transact was determined, then the 50-meter tape was laid <br />• out across the site. All transacts were kept within the reclaimed sample unit boundaries. In <br />situations where the transact pLu:ement resulted in the transact alignment crossing a sample unit <br />boundary, the transact line was backed up for that portion of the transact which crossed the <br />boundary line 180 degrees. Where the 50.meter tape could not be placed within a narrow <br />reclaimed area due to boundary constraints, then the transact line was changed 90 degrees at the <br />point where the boundary line was crossed w ensure that the entire transact alignment was within <br />the area to be sampled. <br />Plant Cover. PLurt cover was evaluated by sampling along an outstretched 50-meter transact <br />tape. Along the outstretched tape, a total often previously identified and randomly selected <br />intervals were selected as the sample locations for sampling. These ten points were then used as <br />the sample locations for collecting plant cover. At each designated sample point, as inclined <br />metal ten-point frame, one meter in height was positioned perpendicular to the tape and a <br />sharpened metal rod was dropped. Each sampling point was sampled at ten-centimeter intervals <br />along the ten-point frame. Even numbers where sampled on the right hand side of the tape and <br />odd numbers were sampled on the left hand side of the tape. <br />Each observation was recorded as to the specific plant species encountered as the rod was <br />dropped. If no plant cover was encountered, then the observation was recorded as to the presence <br />of plant litter, rock, or bare ground. Plant material produced in the 2005 growing season which <br />was still attached to the plant was considered as living plant material and all plant material <br />produced prior to the current growing season or which had fallen to the ground was considered <br />• to be litter. The 100 data points collected along each transact were then summarized into a single <br />
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