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2009-04-01_REPORT - C1994082 (6)
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2009-04-01_REPORT - C1994082 (6)
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Last modified
8/24/2016 3:45:03 PM
Creation date
4/1/2009 3:35:29 PM
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Template:
DRMS Permit Index
Permit No
C1994082
IBM Index Class Name
REPORT
Doc Date
4/1/2009
Doc Name
2008 Annual Revegetation Monitoring Report
From
Seneca Coal Company
To
DRMS
Permit Index Doc Type
Reveg Monitoring Report
Email Name
DTM
Media Type
D
Archive
No
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and 2.8 percent cover, respectively (first hits). Average species density was 39.4 species per 100 <br />• sq.m. <br />Production <br />(Table 3) <br />Total average production was 1682.7 Ibs per acre. Introduced perennial forbs contributed the <br />most with an average production of 919.0 Ibs per acre (approximately 54%). Introduced <br />perennial cool season grasses, native perennial cool season grasses, introduced annual and <br />biennial forbs, native perennial forbs, and native annual and biennial (orbs contributed moderate <br />amounts (389.0, 289.1, 42.8, 39.9, and 3.6 Ibs per acre, respectively). <br />Woody Plant Density <br />(Table 4) <br />Total average density of woody plants was 1303.1 stems per acre, composed entirely of native <br />shrubs. Big sagebrush (Seriphidium tridentatum) and mountain snowberry (Symphoricarpos <br />rotundifolius) and were the dominant species contributing 1125.0 and 153.8 stems per acre, <br />respectively. Wood's rose (Rosa woodsii) and Douglas rabbitbrush (Chrysothamnus viscidiflorus) <br />were present with less than 20 stems per acre. <br />• 2004 RECLAIMED AREA <br />(Photographs 12-15) <br />Cover <br />(Table 5) <br />Native perennial cool season grasses were the predominant lifeform observed in the 2004 <br />Reclaimed Area, contributing 28.1 percent all-hit cover. Within this group, western wheatgrass, <br />Agassiz bluegrass, and thickspike wheatgrass (Elymus lanceolatus fm. dasystachya) were most <br />common, having 11.9, 5.9 and 3.1 percent cover, respectively. Introduced perennial forbs were <br />the second most abundant lifeform contributing 25.1 percent all-hit cover. Of this, alfalfa <br />contributed the most with 22.2 percent all-hit cover. Introduced annual and biennial forbs were the <br />third most abundant lifeform contributing 4.0 percent all-hit cover. Jim Hill mustard (Sisymbrium <br />altissimum) and pennycress contributed 1.0 and 1.0 percent all-hit cover, respectively. <br />Total average vegetation cover, for first hits, was 59.0 percent. Total average vegetation cover, <br />for all hits, was 64.4 percent. Standing dead, litter, bare soil, and rock each had 0.7, 25.7, 13.7, <br />and 0.9 percent cover, respectively (first hits). Average species density was 31.7 species per 100 <br />sq.m. <br />• <br />10
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