Runoff and Sediment Yields from Runoff Plots on Chained Pinyon-Juniper Sites in Utah
AuthorGifford, G. F.
MetadataShow full item record
CitationGifford, G. F. (1973). Runoff and sediment yields from runoff plots on chained pinyon-juniper sites in Utah. Journal of Range Management, 26(6), 440-443.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractRunoff and sediment production from a chained pinyon-juniper site in both southeastern and southwestern Utah was measured from about June 6 to October 1 over a 5-year period (1968-1972) using .04-hectare (0.11 acre) runoff plots. Treatments evaluated included chained-with-debris-windrowed, chained-with-debris-in-place, and natural woodland. All treatments were fenced to exclude livestock. Runoff events occurred at both sites during only 2 years (1968, 1970) of the study. Results indicate that chained-with-windrowing plots yield from 1.2 to 5 times more water during a runoff event than respective woodland plots. Runoff from debris-in-place plots was equal to or less than that measured from the natural woodland for all storms. Runoff data and sediment indexes indicate that when runoff exceeds about 0.1 cm from the woodland, from 1.6 to 6 times more sediment can be expected from windrowed sites than from adjacent woodland. Sediment yields from debris-in-place sites were similar to those from adjacent unchained woodland for all storms during this study.