Ungrazed crested wheatgrass seedings may intercept from 7 to 22 percent of the annual precipitation. Infiltration rates following seeding are not particularly impacted on coarse-textured soils characteristic of pinyon-juniper sites but on medium-textured soils (and especially of plowing is invovled) a reduction in infiltration rates may occur. Seeded sites exhibit large variability in both time and space in terms of measured infiltration rates. Soil water is usually increased through seeding former pinyon-juniper and sagebrush sites. Sediment is the primary water quality problem on seeded areas; chemical water quality is usually good.
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