2015-02-20_PERMIT FILE - C1981019A ‎(2)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 2/20/2015
• Section_Exhibit Name: Rule 2 Permits -ST
• Media Type: D
• Archive: Yes

RULE 2 PERMITS
grouped as mature individuals (DBH greater than 2 inches), saplings (DBH less than 2 inches) and
standing dead (snags).
Sample Adequacy -Adequacy of sampling was determined periodically during field sampling utilizing
the following equation from Snedecor and Cochran (1967).
nmm = tzsZ / (dx)z
where: n,n;° =the minimum number of observations needed
t =the distribution value at a given confidence level (CL); i.e. 1.64 (90% CL) For
grassland communities and 1.282 (80% CL) for shrubland communities
sZ =the sample variance
d2 = 10% level of accuracy, or 0.1
x =the sample mean
An adequate sample for each pazameter (cover and production) was determined in each vegetation type
by exceeding the n~ requirement obtained from the equation with a minimum of 15 samples.
Data Analyses -Cover data were summarized by determining the mean percent cover, relative percent
cover, and standard deviation for each species, lifeform group, rock, litter, and baze ground within each
vegetation type sampled. Above ground standing biomass of species (production) was determined as the
mean dry weight of all species in all plots within each vegetation type sampled. Production was
• expressed in grams per square meter and pounds per acre for each type. Shrub density was computed as
the mean number of plants per 50 square meters and the mean number of plants per 0.1 acre for all
species. Tree density was computed as the mean number of plants per 100 square meters and the mean
number of plants per 0.1 acre for all species. Species diversity was computed as the mean number of
different species encountered by vegetation hits along the 50-meter cover transect.
Statistical Equivalency of Reference Areas -The statistical equivalency of each reference area with the
study area was determined for vegetation cover, production and species density in each vegetation type
according to the following equation (OSM 1980):
(z,-x,)<or>t (s2l/n,)+(s2~/n2)
Where: x =sample mean
sZ =sample variance
t = t table value for 90% confidence level
n =sample size
Livestock Carrie Capacity -Livestock carrying capacity of each vegetation type was determined by
considering the nutritional requirements of cattle and sheep (Stoddart et al, 1975) according to the,
following assumptions. A cow and calf (cattle animal unit) consumes 900 pounds of av-dry forage per
month and a ewe and lamb (sheep animal unit) consumes 150 pounds of air-dry forage per month. The
conversion of oven dry weight to air-dry weight is 1.11. The ideal utilization factor for forage grazing is
50 percent. The livestock carrying capacity was determined by the Following:
. LCC=(1.11xFAx.S)/FC
where: LCC =Livestock Carrying Capacity (RUM per acre)
South Taylor/Lower Wilson-Rule 2, Page 63 Revision Date: 1/31/07
Revision No.: PR-02