REP45354

• Permit No: C1980005
• IBM Index Class Name: Report
• Doc Date: 3/29/2002
• Doc Name: 2001 Revegetation Monitoring Report
• From: Seneca Coal Company
• To: DMG
• Permit Index Doc Type: Reveg Monitoring Report
• Media Type: D
• Archive: No

• measurably to the total. Blue flax (Adenolium lewisir) and western yarrow (Achilles lanulosa)
each contributed two-fifths of this lifeform's total. Together tailcup lupine and American vetch
contributed one-fourth of the total. Nine other species were observed in this area. Native annual
and biennial forbs contributed 1.9 percent of iota! vegetation cover. Introduced annual grasses
accounted for 1.4 percent of total vegetation cover. The remaining 1 percent was comprised of
introduced perennial forbs and native shrubs.
Total vegetation cover was 26.5 percent. Standing dead, litter, bare soil, and rock cover values
were 2.38, 23.88, 41.5, and 5.75 percent respectively. Species density averaged 21.8 species
per 100 sq. m.
Production (Table 8) '
Alfalfa contributed 14.3 pounds per acre in the 1999 reclamation area. All other species
contributed 710.2 pounds per acre. Herbaceous production for all species averaged 724.5
pounds per acre.
Woody Plant Density (Table 9)
Big sagebrush was the only native shrub observed in the 1999 reclamation area. Total woody
plant density was 56.7 stems per acre.
1997 Shrub Reclamation Area
(Photographs 13-16)
Cover (Table 10)
Introduced annual and biennial forbs averaged 37.0 percent of total vegetation cover for this area.
• Hound's tongue accounted for two-fifths of this lifeform's total. Yellow sweetcolver contributed
one-fourth of the total. Jim Hill mustard and Twolobe speedwell together contributed nearly one-
fourth of this lifeform's total. Musk thistle (Carduus nutans ssp. Macrolepis) and
early stickseed (Laooula redowskii) contributed the rest of the balance. Introduced annual
grasses averaged 23.3 percent of total vegetation cover. Japanese brome contributed nearly
nine-tenths. Cheatgrass accounted for the remainder. Canada thistle, an introduced perennial
forb also contributed 23.3 percent of total vegetation cover. Native perennial cool season
grasses provided 9.6 percent of total vegetation cover. Mountain brome was the main contributor
and accounted for more than two-thirds of this lifeform's total. Other contributors included slender
wheagrass and Agassiz bluegrass. Native annual and biennial forbs accounted for 2.7 percent of
total vegetation cover. The only contributor from this lifeform was bigfruit willowherb (Eoilobium
brachycarpum). Native shrubs contributed 2.7 percent of total vegetation cover. Saskatoen
serviceberry and silver sagebrush (Senphidium canum) each contributed one half of this lifeform's
total. Introduced perennial cool season grasses accounted for 1.4 percent of total vegetation
cover.
Total vegetation cover was 29.2 percent. Litter, bare soil, and rock cover values were 29.6, 35.6,
and 5.6 percent respectively. Species density averaged 14.6 species per 100 sq. m.
Woody Plant Density (Table 11)
Total woody plant density for the 1997 shrub reclamation area was 995.6 stems per acre.
Saskatoon serviceberry and Gambel's oak each contributed one-third of the total. Chokecherry
accounted for one-fourth of the total. Wood's rose and big sagebrush accounted for the
remainder.
10