The differences in storm runoff and peak discharges between grazing intensities and vegetation types on 13 small watersheds within Blue Mountains of eastern Oregon were investigated. The pastures received one of four management strategies: 1) Strategy A - no grazing, 2) Strategy B -season-long grazing without uniform livestock distribution, 3) Strategy C - grazing with uniform livestock distribution and 4) Strategy D - intensive grazing. A moderate (50%) utilization level was the goal on all grazed pastures. Vegetation was put into two classes: Western larch-Douglas-fir (nine watersheds), and other (four watersheds representing fir-spruce, lodge pole pine, mountain meadow, and ponderosa pine). Rainfall and runoff data from 485 storms during the summers of 1979-1984 were used to estimate storm runoff volumes (SF), peak flows (QP), peak flow above initial flow (QPI) and total storm rainfall (PPT).
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