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2011-06-03_REVISION - C1980005
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2011-06-03_REVISION - C1980005
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Last modified
8/24/2016 4:34:11 PM
Creation date
6/3/2011 1:57:53 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
REVISION
Doc Date
6/3/2011
Doc Name
Submittal of updated vegetation monitoring results
From
Seneca Coal Company
To
DRMS
Type & Sequence
SL5
Email Name
JDM
Media Type
D
Archive
No
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locations within the reclaimed areas sampled in 2010, as well as photographs of Mountain Brush <br />and Sagebrush/Snowberry Reference areas, are included in Appendix 4. Calculations related to <br />evaluation of data under permit-prescribed tests of species diversity are set forth in Appendix 5. <br />Calculations related to determination of allowable cover and sample adequacy are presented in <br />Appendix 6. Graphs of vegetation and climate data are presented in Figures 1 through 8 of this <br />report'. <br />In the cover descriptions below, species listed as "also present" were not "hit" during point- <br />intercept sampling but were present within one meter of either side of the 50 m sample transect <br />line. Unless otherwise stated, all cover values are for absolute first hit data only. Percentages are <br />rounded to facilitate discussion of the results. <br />Phase 11 Bond Release Area <br />(Photographs 1 through 6) <br />COVER <br />(Table 1) <br />Introduced perennial cool season grasses, introduced perennial forbs and native perennial cool <br />season grasses were the predominant lifeforms observed in the Phase II Bond Release Area, <br />contributing 15.7, 8.9 and 9.9 percent first-hit vegetation cover respectively. Introduced annual <br />and biennial (orbs, native shrubs, and native perennial forbs contributed 5.7, 1.5, and 1.6 percent <br />cover, respectively. Introduced perennial cool season grass cover was composed mostly of <br />intermediate wheatgrass (Thinopyrum intermedium), orchard grass (Dactylis glomerata) and <br />smooth brome (Bromopsis inermis). Introduced perennial forb cover total was composed mostly <br />of alfalfa (Medicago sativa). Native perennial cool season grass cover was predominantly <br />composed of western wheatgrass (Pascopyrum smithii), basin wildrye (Leymus cinereus) and <br />thickspike wheatgrass (Elymus lanceolatus fm. dasystachya). Also observed in the area were the <br />noxious weeds houndstongue (Cynoglossum officinale), musk thistle (Carduus nutans ssp. <br />macrolepis) and Canada thistle (Breea arvensis). <br />Total average vegetation cover for first hits was 44.4 percent. For herbaceous vegetation, total <br />average cover for first hits was 42.9 percent. Cover by standing dead, litter, bare soil and rock <br />averaged .05, 37.4, 15.1 and 3.1 percent, respectively. Average species density was 22.0 species <br />per 100 sq. m. <br />8
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