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i <br />i <br />r <br /> <br />RANGE SITE NO. 2 <br />LOAMY PLAINS <br />May 1976 <br />f <br />a a• <br />Page 2 <br /> <br />Native (potential) Vegetation and Guide for Determining Range <br />Condition.. <br />Percentage composition by weight of.the principal species may <br />total as much as: <br />Blue grama 55 <br />Western wheatgrass 20 <br />',Needle-and-thread 5 <br />Buffalo grass 5 <br />Sand dropseed 5 <br />Sedge 10 <br />Three-awn 5 <br />Squirrel tail 7 <br />-Fringed sage T <br />Snakeweed'. ?• . • T , <br />Prickly pear T <br />' 'Wild alfalfa T <br />t. Ring mutely. T <br />Other native,perennial grasses 5 <br />Four-wing' saltbush , • 5 <br />The fklowing species are .most 'iikely to invade •thiii site. Fan <br />weed (mustard), thistle,.tumble-grass, Russian thistle,-six weeks <br />'fescue, and 'loco. <br />4. 'Total Annual Production. • <br />Favorable,years .1500 Pounds per Acre Air Dry <br />Unfavorahle years 500 n ,t n' tt ,t <br />Median years 1000 <br />5. Soils ` <br />a. The dominant soils are deep or moderately deep with medium <br />textured profiles.- Moisture intake is moderate. Field <br />capacity for storing moisture is high, but depth of penetra- <br />tion and ability to give up moisture to plants is not as <br />great as in the sandier soils. Short grasses are adapted to <br />these-soils because df their fibrous and relatively shallow <br />root systems and their ability to go dormant during dry <br />` spells. Mid grasses are scattered throughout the site. There <br />is high production in good moisture years'.