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<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />RANGE SITE NO. 31 Page 2 <br />SANDY BOTTOHLAND <br />'August 1975 ; <br />Nat•lve-(potentlal) Vegetatlon•.and Guide for Determining Range <br />, :? .. , . Cond1'tIon: T A ... <br />Percentage composltion'by'wCight of the principal species may <br />r total as much as: ' <br />Grasses: <br />a ; Switchgrass 25 <br />Sand bluestem 15 <br />Prairie sandreed 12 <br />Indian grass .. 10 <br />Little bluestem 5 <br />Side-oats grama 5 <br />Needle-and-thread 5 <br />Canada wildrye 5 <br />Tall sand dropseed 3 <br />Inland saltgrass 3 <br />Western•wheatgrass 3 <br />Grass-like: ; <br />Sedges., 3 <br />4I Forbs: ,' .. <br />? :" <br />Perennial fortis 3 <br />Plants.that,are most 'likel.y'to increase when the range deterlo- <br />;rates are: ,kochia, Russian thistle, tamarix, and other annuals. <br />The native plant community of•plants and grasses that will immedi- <br />.1ately decrease as a result of ecological changes that take place <br />or as a result or.range deterioration will be:' Indian grass, <br />.switchgrass, sand bluestem, and prairie'sandreed. The mid grasses <br />-may increase'for a while but-O th serious deterioration of the <br />range resource.-these will be replaced by sand sagebrush, three-awn, <br />and inland saltgrass These plants with further deterioration, <br />will-be replaced with noxious forbs, low-producing perennials and <br />annuals. <br />b. Total Annual Production <br />Favorable years 2500 Pounds per Acre Air Dry <br />Unfavorable years 1200 11 It 11 If 11 <br />Median years 1800 11 11 " <br />• L <br />i <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />