REP29506

• Permit No: C1982057
• IBM Index Class Name: Report
• Doc Date: 3/26/2001
• Doc Name: 2000 Revegetation Monitoring Report
• Permit Index Doc Type: Reveg Monitoring Report
• Media Type: D
• Archive: No

Aspen Extended Reference Area
(Photographs 13 through 16)
Cover (Table 10)
The native tree, quaking aspen (Populus tremuloides), was the dominant species in this area and
contributed 45.6 percent of total vegetation cover. Native shrubs accounted for 21.2 percent of
total vegetation cover. Mountain snowberry accounted for nearly half and Saskatoon
serviceberry contributed more than one-third of this total. Other contributing species were
chokecherry, Rocky Mountain maple (Acerglabrum), Gambel's oak, Wood's rose, and
gooseberry (Ribes inerme). Native perennial (orbs accounted for 17.3 percent of total vegetation
cover. Together, stinging nettle (Urtica gracilis ssp. gracilis), serrate groundsel (Senecio Serra),
cutleaf coneflower (Rudbeckia ampla), and Colorado violet (Viola scopulorum) accounted for
more than half of this total. The other half was comprised of minor contributions from fifteen other
species. Native perennial cool season grasses accounted for 11.7 percent of total vegetation
cover. Blue wildrye (Elymus glaucus) was the dominant species in this lifeform and averaged
more than nine-tenths of the total. Other contributors were nodding brome (Bromopsis porter)
and mountain brome. Hound's tongue (Cynoglossum officinale), an introduced biennial forb,
averaged 2.3 percent of total vegetation cover. Introduced perennial cool season grasses,
consisting of redtop (Agrostis sfolonifera), Kentucky bluegrass (Poa pratensis), and meadow
foxtail (Alopecurus pratensis), accounted for 1.2 percent of total vegetation cover. Canada thistle,
an introduced perennial forb, contributed 0.5 percent of total vegetation cover. Pinnate
tansymustard (Descurainia pinnate), a native annual/biennial forb, and moss each contributed 0.2
percent of total vegetation cover.
• Total vegetation cover was 85.4 percent. Standing dead, litter, and bare soil cover values were
0.4, 11.4, and 2.8 percent respectively. Species density averaged 26.8 species per 100 sq. m.
Herbaceous Production (Table 11)
Total herbaceous production averaged 719 pounds per acre.
Mixed Brush Extended Reference Area
(Photographs 17 through 20)
Cover (Table 12)
Native shrubs comprised 66.1 percent of total vegetation cover in this reference area. Gambel's
oak accounted for more than half and mountain snowberry averaged nearly one quarter of this
total. Together, Saskatoon serviceberry and chokecherry contributed one-fifth of this lifeform's
total. Big sagebrush, Douglas rabbitbrush, and Oregon hollygrape (Mahonia repens) were also
present in measurable quantities. Native perennial cool season grasses (and grass-likes)
averaged 25.0 percent of total vegetation cover. Agassiz bluegrass contributed nearly two-thirds
of this total. Elk sedge (Carex geyen) and slender wheatgrass were also important species in this
lifeform. Six other species made relatively minor contributions. Native perennial (orbs
contributed 7.5 percent of total vegetation cover. Together, arrowleaf balsamroot (Balsamorhiza
sagittata), American vetch, and Pacific aster contributed nearly half of this total. Ten other
species made relatively minor contributions. Hound's tongue (Cynoglossum officinale), an
introduced annual/biennial forb, averaged 0.7 percent of total vegetation cover. Pygmyflower
rockjasmine (Androsace septentrionalis), anative annual/biennial forb, accounted for 0.5 percent
of total vegetation cover. Cheatgrass, an introduced annual grass, contributed 0.2 percent of
total vegetation cover. Introduced perennial fortis were present in this reference area, but did not
contribute measurably to total vegetation cover.
t Total vegetation cover was 65.4percent. Standing dead, litter, bare soil, and rock averaged 0.6,
24.2, 8.8, and 1.0 percent respectively. Species density averaged 27.5 species per 100 sq. m.