Some responses of riparian soils to grazing management in northeastern Oregon
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Authors: C. C. Bohn, and J. C. Buckhouse
Date: 1985
Journal: Journal of Range Management
Volume: 38
Number: 4
Pages: 378-381
Summary of Methods: The effects of 4 grazing treatments (rest-rotation, deferred-rotation, season-long, and no grazing) on riparian soil infiltration, bulk density, and penetrability were examined in a study located on the Starkey Experimental Forest and Range about 48 km west of La Grande, Oregon. Rest-rotation pastures followed a pattern of rest, grazing late June-mid-August, grazing season-long, grazing mid-August-mid-October. Deferred rotation pastures were grazed alternate years, late June-mid-August and mid-August-mid-October. Season-long grazing lasted from late June-mid-October. Short-duration, high-intensity, deferred-rotation grazing was tested in September and October. All soil measurements were made in the early summer of 1980, late summer 1980, and early summer 1981.
Article Summary / Main Points: Infiltrations measurements for rest-rotation and no grazing systems demonstrated a positive response, relative to their paired exclosures. Deferred rotation and season-long did little to enhance infiltration rate, and sometimes hindered, hydrologic expression. Late-season grazing in September demonstrated a positive hydrologic response, though late-season grazing in October had a negative hydrologic response, likely due to the onset of rain and a change in soil moisture conditions.
Vegetation Types: Riparian and Wetlands
MLRA Ecoregions: 43C Blue and Seven Devils Mountains
Agrovoc Control Words: Riparian zones Rangelands Grazing
Article Review Type: Refereed
Article Type: Documented Case History
Keywords: riparian soils, infiltration, sediment production, penetrometer penetrability, bulk density, grazing, riparian zones, oregon, grazing systems
Annotation: When applying the findings of this study caution must be used as the authors designed this as a case study and therefore was not replicated. Therefore, requiring additional research to prove these results are applicable across a larger area.
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