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REP00833
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REP00833
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Entry Properties
Last modified
8/24/2016 11:29:45 PM
Creation date
11/26/2007 9:46:31 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982055
IBM Index Class Name
Report
Doc Date
6/20/2005
Doc Name
2004 Annual Reclamation Report
From
Energy Fuels Mining Company
To
DMG
Permit Index Doc Type
Annual Reclamation Report
Media Type
D
Archive
No
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evaluation, the vegetation pazameters of production, plant cover, species diversity and shrub <br />density were sampled. These data were then utilized to evaluate the successfulness of <br />revegetation efforts with respect to cover, forage production, species diversity, and shrub density. <br />Transect Locations. To ensure that all of the reclaimed areas at the Raton Creek Mine had an <br />equal chance of being sampled, the entire reclaimed azea was treated as a single sample unit and <br />a totally randomized sampling effort was implemented. Utilizing the GPS unit, the extreme <br />north, south, east and west boundaries of the area to be sampled were identified according to the <br />1983 Colorado State Plan Southern Zone (NAD 83) coordinate system. The interval used in the <br />state plan coordinate system is based on foot increments. Given the typical real-time accuracy of <br />this GPS unit of plus or minus 18 inches, all of the transect locations were field located at a sub- <br />meter accuracy. <br />Once the boundaries of the reclaimed azea were identified, then using a specially prepared <br />computer program which generates random coordinates, the potential transect location points <br />were identified. These coordinates were then entered into the GPS unit and the transect location <br />starting points were marked in the field. At each transect location starting point, the transect <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 transect was determined, then the 50-meter tape was laid out <br />along the transect alignment. All transects were kept within the reclaimed sample unit <br />boundaries. In situations where the transect placement resulted in the transect alignment crossing <br />beyond the reclaimed azea boundary, the transect line was backed up for that portion of the <br />transect which crossed the boundary line 180 degrees. Where the 50-meter tape could not be <br />placed within a narrow reclaimed area due to boundary constraints, then the transect line was <br />changed 90 degrees at the point where the boundary line was crossed to ensure that the entire <br />transect alignment was within the area to be sampled. <br />Plant Cover. Plant cover was evaluated by sampling along an outstretched 50-meter transect <br />tape. Along the outstretched tape, a total often previously identified and randomly selected <br />intervals were selected as the sample locations for plant cover sampling. These ten points were <br />then used as the sample locations for collecting plant cover. At each designated sample point, an <br />inclined metal ten-point frame, one meter in height was positioned perpendiculaz to the tape and <br />a 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 2004 growing season was <br />considered as living plant material and all plant material produced prior to the current growing <br />season was considered to be litter. The 100 data points collected along each transect were then <br />summarized into a single datum for purposes of statistical analysis. Absolute and relative plant <br />cover, species diversity, and plant life forms were determined based upon the observations <br />
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