PERMFILE113432

• Permit No: C1981024
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 8 VEGETATION DIVERSITY CRITERIA
• Media Type: D
• Archive: No

• Mr. Gregg Squire -6- January 7, 1985
ISmo = 2w X 100
Where w = Sum of the lesser values in common between Area A
and Area B
a = Sum of values for area a (prior to mining)
b = Sum of values for area b (area tested during
reclamation success study)
The life forms to be used for the calculations are:
perennial,
perennial,
annual and
annual and
• perennial
cool season grass
warm season grass
biennial grass
biennial forb
forb
The diversity of revegetated area will be considered successful if:
o there are at least as many species on the revegetated area
that contribute 5A or more of the total herbaceous cover,
productivity, or frequency as there are in the undisturbed
vegetation; and,
o if all herbaceous life forms listed for the Motyka Index
are present on undisturbed vegetation also occur on the
revegetated area; and,
o if at least as many woody species on the revegetated
contribute 5% or more of the total woody plant density as
contributed 5A or more of the total woody plant density on
the premining vegetation.
In addition to the data discussions to be provided as outlined above,
other pertinent information such as expected successional trends, dispersion
of volunteer and invading species, reproduction and establishment of new
•