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2012-10-01_REVISION - M1977306 (22)
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2012-10-01_REVISION - M1977306 (22)
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Last modified
6/15/2021 2:26:50 PM
Creation date
10/22/2012 7:51:38 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M1977306
IBM Index Class Name
REVISION
Doc Date
10/1/2012
Doc Name
EPP- Submittal, Ecological Site Description to Pg. U-29.
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Cotter
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DRMS
Type & Sequence
AM1
Media Type
D
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B. MAJOR USES AND INTERPRETATIONS FOR <br />1. Grazing <br />page 5 #326 <br />a. This site provides good fall, winter and spring grazing <br />for sheep. Heavy spring use every year will cause a <br />decline in plant vigor and cause range condition to go <br />down. Fields should be rested from spring grazing a <br />minimum of once every four years to prevent this range <br />condition decline. <br />b. Guide to Initial Stocking Rates <br />(1) <br />Stocking rates given below are based on continuous <br />use for the entire growing season, and are intended <br />only as an initial guide. Forage needs are <br />calculated on the basis of 900 Ibs of air —dry <br />forage per animal unit month (AUM). To maintain <br />proper use and allow for forage that disappears <br />through trampling, small herbivore use, weathering, <br />etc., 35 percent of the palatable forage produced <br />is considered available for grazing by large <br />herbivores. <br />Condition Percent Climax <br />Class Vegetation Ac /AUM AUM /Ac <br />Excellent 76 -100 4.1— 5.5 .24 <br />Good 51 -75 5.5— 8.2 .17 <br />Fair 26 -50 8.2 -16.6 .10 <br />Poor 0 -25 16.6 -20+ .05 <br />(2) Adjustment to the initial stocking rates should be <br />made as needed to obtain proper use. With <br />specialized grazing systems, large livestock <br />breeds, uncontrolled big game herbivores, <br />inaccessibility, dormant season use, etc., stocking <br />rate adjustments will be required, <br />(3) Depending on climatic condition, in some years <br />palatable annuals such as cheatgrass may produce <br />large amounts of forage that is available for only <br />a short time. Intensive grazing programs on these <br />areas followed by deferment is an excellent <br />management tool to utilize these annuals but still <br />allow recovery of the perennial vegetation normally <br />associated with this site. <br />
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