Chaining with windrowing treatment in the pinyon‐juniper vegetation type significantly increased permeability of surface soils from the 0–2 and 2–4 inch depths at a site in southwestern Utah. Double chaining with debris in place did not yield a significant increase in permeability. Permeability of surface soils from a pinyon‐juniper site in south‐eastern Utah provided a similar trend, though significant differences among treatments were not evident. Water quality influenced percolation only after approximately 30 minutes. Multiple regression equations developed for predicting intrinsic permeabilities varied according to water quality. Copyright 1969 by the American Geophysical Union.
