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~ w <br />12/92 <br />t' <br />70--Fluvaquents and Haplaquolls soils, frequently <br />flooded. This unit is un flood plains and depressions of <br />str-earn terraces. Elevation is F,9Cr~l to B,CruU feet. The <br />mean annual precipitation is 11 tu_ 18 inches, the average <br />air temperature is 4U to 45 degrees F., and the frost free <br />period is E~5 to 3v days. <br />The Fluvaquents soil is very deep and very pour-ly or <br />1 <br />par,r•ly drained. It formed in <br />is dark grayish brown sandy I <br />inches thick. The underlying <br />sand, I uarny sarr~i, sandy 1 Darn, <br />Borne places sand or e>:trernely <br />ifr to riU i nches. <br />alluvium. Thre surface layer <br />;am, loam, ur clay loam ~ tq'S <br />material is gray stratified <br />I warn, c lay I r,arn, or c I ay. In <br />gravelly sand is at a depth of <br />F'errneability of the Fluvaquents soil is moderate tip <br />rapid. Available water- capacity is low to high. Effective <br />rooting depth i s to i nches or rni~r-e for water--t.. I er•ant. p f ants <br />and lr:r to 2ir inches for plants sensitive to a higl-~ water- <br />table. Funoff is slow or ponded, and the hazard of water- <br />erosion is slight. The hazard i~f sr,ils blowing is slight. <br />A high water- table is at or near the surface during the <br />spring and early summer. In some areas the water table <br />remains above a depth of 1 foot throughout the year while in <br />other areas the water table is at a depth of 1 to 3 feet <br />during late summer, fall, and winter. The hazard of <br />flooding is frequent. <br />t. <br />;~- <br />L'f <br />