1987-12-01_PERMIT FILE - C1981017 ‎(290)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: Revegation Information
• Section_Exhibit Name: Chapter V Appendix V-G-1
• Media Type: D
• Archive: No

r`.
� RECEIVED
in�nounra;nsau, 4.r• Mid-Continent Resources, InG
DEC 18 1984
Coal Basin Mine MINED LAND RECLAMATION DIVISION
Droposed Waste Disposal Area (!;utey Property) Colo. Dept. of Natural Resources
Revegetation Success Criteria
(December 18. 1984)
In addition to the' revegetation success criteria previously submitted for
vegetation cover and herbaceous production, the following criteria for
woody plant density and species diversity are proposed for reclamation of
the waste disposal area (Sutey Property) currently proposed for devel-
opment:
Woody Plait Density
A standard of 250 live plants per acre is proposed for those portions of
the reclaimed waste disposal area having slopes steeper than 2.5(h):1(v).
No woody plant density standard is proposed for those portions of the
reclaimed site less steep than 2.5(h):1(v).
This standard has been derived by comparing the density of snowberry
versus the percent cover of snowberry for the nearby aspen vegetation
type and calculating an equivalent density for snowberry based on the
cover of snowberry for the meadow type, all based on data from the 1984
vegetation baseline inventory. In round numbers: under the aspen,
snowberry constitutes about eight percent of the total vegetation cover
and a sampled density of about 1,000 plants per acre; in the meadow type,
snowberry constitutes about two percent of the total vegetation cover,
which would be an equivalent density of 250 plants per acre. The
assumption is made here that there is an equivalent proportional
relationship in the meadow vegetation type between shrub cover and
density as in the aspen vegetation type. It should be noted that only one
species is being compared, snowberry, which is the only significant woody
plant species in the meadow vegetation type.
Woody plant density will be measured using randomly located belt
transects of five meters by 15 meters, according to the method described
for determining woody plant density for the baseline inventory of the
aspen vegetation type.
Species Diversity
A standard for species diversity is proposed based on the Division's
diversity guideline and the vegetation baseline inventory data for cover
for the meadow vegetation type. The standard is as follows:
Based on post-mining vegetation cover data, the post-mining vegetation