2014-10-15_PERMIT FILE - C1982056A ‎(7)‎

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 10/15/2014
• Doc Name: Pages 2.05-65 to 2.05-197.3 part 2
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans Part 2
• Media Type: D
• Archive: Yes

Where:
a = total of species density values for life forms of the reclaimed area
40 b = total of species density values for the life forms of the relevant reference area
c = the sum of the smaller of the species density values for life forms of the reclaimed area and the
reference area
Only species density of vascular plants will be included. Life forms to be used will include:
Annualfbiennial forbs
Annual grasses
Perennial forbs /Sub - shrubs
Perennial cool season grasses
Woody plants are not included because they are addressed by separate standards.
Alternative Test D: Assessment of the Presence of Native Species - The third alternative, assessment of
the species diversity of the reclaimed lands, makes direct reference to the presence of native western North
American plant species in the reclaimed area.
Total cumulative number of reclaimed area native species ? avg. reference area native species
density (number of species /100 square meters)
Comparing the cumulative number of species in what, would often be twenty 100 square meters samples in the
reclaimed area to the average density in the reference areas actually compares a native species density per 2,000
square meters in the developing revegetated area to the native species density per 100 square meters in the long
established native areas. As such, it allows a forward - looking assessment of the developing presence of native
40 species without requiring the extended time necessary for these species to actually "fill -in" and actually achieve a
density per random 100 square meters equal to that occurring in the undisturbed areas.
Shrub Evaluation - Shrub density sampling will be conducted in the reclaimed area using the belt transect method
in accordance with Section 4.15.11(c)(i). Belt transects are 2 meters x 50meters in dimension and are randomly
oriented from the sample point origin.
Sample adequacy (15 minimum samples) for the belt transect method will be evaluated based on the following
expression:
t 2 s 2
n,, Fd �xl Y
Where:
nm = Minimum Sample Size
s = Sample variance (n -1 degrees of freedom)
d =Precision (0.10 for cover and production; 0.15 for woody plant density)
x =Sample arithmetic mean
t = The (a =.10) t -table value for a 1 tail t -test, n -1 degrees of freedom (infinite degrees of freedom may be
used if n >30)
n =Sample size
This hypothesis will be tested using methods set forth in Section 4.15.11(2). Hypothesis testing may include the
null or reverse null approach previously referenced or methods described in 4.15.11(3), where large heterogeneity
in shrub density causes large sample sizes and sample variation.
RN08 -05 2.05 -117.2 03/12/10