Bulk density and water infiltration showed little change in a comparison of 3 grazing systems stocked at light, moderate and heavy levels in a study in Wyoming. While soil bulk density was greater in heavily grazed treatments after 2 years, water infiltration rates appeared unaffected. Since trends in water infiltration rate did not follow those of bulk density, it is indicated that soil bulk density may not be the main factor controlling water infiltration rate. Similarly, water infiltration did not vary consistently under the continuous, rotational and short-duration grazing systems tested. This study concluded that the short-duration rotation grazing system had no clear advantage for improving water infiltration by destruction of surface crusting. Long-term evaluation of the effects of grazing systems on soil physical characteristics may help to overcome seasonal, yearly, and inherent soil variability.
Citations and enhanced abstracts for journals articles and documents focused on rangeland ecology and management. RSIS is a collaboration between Montana State University, University of Idaho, and University of Wyoming.