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PERMFILE107313
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PERMFILE107313
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Entry Properties
Last modified
8/24/2016 9:59:51 PM
Creation date
11/24/2007 3:04:18 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981023A
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 5 VEGETATION PART 3
Media Type
D
Archive
Yes
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A minimum of 15 cover and production samples will be taken, Chen <br />sample adequacy will be calculated using the formula: <br />r ~ T2 S2 <br />Nmin - <br />Hhere Nmin - The minimum number of observations needed <br />T - 1.28 for the 80X of confidence level <br />S2 - Variance of initial sample <br />D - .lz [sample mean (~ times level of accuracy <br />(+ loz)) <br />Sampling viii continue until the required number of sa®ples to meet <br />adequacy has been taken, up to a maximum of 60 on affected areas and 30 on <br />reference areas; the confidence level achieved with the maximum number of <br />samples will be calculated if Nmin is greater than the maximum aumber <br />taken. <br />The direction of cover transects will be determined by a randomly <br />`~~ selected compass bearing. Vegetation cover will be gathered using the <br />point intercept method and 10 pin frame (Mueller-Dombois and Ellenbert <br />1974). Each cover transect will consist of a total of 100 points along a <br />SOm iransect. The pin frame viii be read on both sides of the transsect <br />line at five randomly selected points along the 50 meter iransect. Cover <br />hits for vegetation (by species), litre crock, or bare ground will be <br />recorded at each point. Vegetation cover sampling will be conducted during <br />late July 19$3. Vegetation cover on the reference area must be equivalent <br />to .the vegetation cover on the pinyon-juniper affected area before produc- <br />tivity measurements on the areas can be made. <br />Productivity measurements will also be taken !n late July, 1983. One <br />production quadrat will be clipped at each randomly located sample point in <br />the pinyon-juniper community and reference area. Productivity exclosures <br />will not be necessary because domestic livestock will not be grazed in the <br />area. Production samples will be collected by clipping all the current <br />• year's grouch of herbaceous vegetation vithln a 4m2 rectangular quadrat at <br />38-33 <br />
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