Laserfiche WebLink
' 34{ .~5 Q- A13 <br /> 3 -Aquolls and Agc~~ts ~ravcl~ substratum <br /> <br /> J <br /> Thcsc nearly le vu] soils <br />~ arc on bottom l.nds and Clnod plains of all <br />' tltc major streams in the survey area, The Aquolls, wit ch hove dark <br /> <br />' colored surface layers, make up about 65 percent of the mapping unit. <br /> The Aqucn[s, which have lighter colored surface layurs, make up about <br />' 25 percent. About 10 percent is Aquolls and Aqucp[s, flooded, and <br />Bankard sandy loam. <br />1 <br /> <br /> <br />1 <br />1 <br />1 <br />1 <br />1 <br /> <br />.. <br />t '/ <br />1 V <br />These are deep, poorly drained soils. They formed in recent alluvium. <br />Typically they have mottled, mildly [o modet'a[ely alkaline, loamy or <br />clayey surface layers and underlying material, and arc underlain by <br />scud or sand and gravel within 48 inches. They may or may not have a <br />gleyed layer in the underlying material. <br />hlost of these soils are subject to flooding, A watertable is at or <br />near the surface early in the spring and recedes to as deep as 48 <br />inches by late Call in some years. <br />These soils arc used for rangeland and wildlife liabita[. Some small <br />areas have been reclaimed by major drainage and ]eve ling operations <br />and is farmed to irrigated crops. <br />The potential native vegetation on these soils is dominated by alkali <br />saca[on, switchgrass and western wheatgrass. Snltgrass, sedge, rush <br />and alkali bluegrass are also prominent. Potential production ranges <br />from 3000 pounds per acre in favorable years [0 2000 pounds per acre <br />in unfavorable years. When range condition deteriorates, switch grass, <br />1 <br />