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Full-Text Articles in Life Sciences
Hydrologic And Erosion Responses Of Sagebrush Steppe Following Juniper Encroachment, Wildfire, And Tree Cutting, Frederick B. Pierson, Christopher Jason Williams, Stuart P. Hardegree, Patrick E. Clark, Patrick R. Kormos, Osama Z. Al-Hamdan
Hydrologic And Erosion Responses Of Sagebrush Steppe Following Juniper Encroachment, Wildfire, And Tree Cutting, Frederick B. Pierson, Christopher Jason Williams, Stuart P. Hardegree, Patrick E. Clark, Patrick R. Kormos, Osama Z. Al-Hamdan
Articles
Extensive woodland expansion in the Great Basin has generated concern regarding ecological impacts of tree encroachment on sagebrush rangelands and strategies for restoring sagebrush steppe. This study used rainfall (0.5 m2 and 13 m2 scales) and concentrated flow simulations and measures of vegetation, ground cover, and soils to investigate hydrologic and erosion impacts of western juniper (Juniperus occidentalis Hook.) encroachment into sagebrush steppe and to evaluate short-term effects of burning and tree cutting on runoff and erosion responses. The overall effects of tree encroachment were a reduction in understory vegetation and formation of highly erodible, bare intercanopy …
Short-Term Effects Of Tree Removal On Infiltration, Runoff, And Erosion In Woodland-Encroached Sagebrush Steppe, Frederick B. Pierson, Christopher Jason Williams, Patrick R. Kormos, Osama Z. Al-Hamdan
Short-Term Effects Of Tree Removal On Infiltration, Runoff, And Erosion In Woodland-Encroached Sagebrush Steppe, Frederick B. Pierson, Christopher Jason Williams, Patrick R. Kormos, Osama Z. Al-Hamdan
Articles
Land owners and managers across the western United States are increasingly searching for methods to evaluate and mitigate the effects of woodland encroachment on sagebrush steppe ecosystems. We used small-plot scale (0.5 m2) rainfall simulations and measures of vegetation, ground cover, and soils to investigate woodland response to tree removal (prescribed fire and mastication) at two late-succession woodlands. We also evaluated the effects of burning on soil water repellency and effectiveness of aggregate stability indices to detect changes in erosion potential. Plots were located in interspaces between tree and shrub canopies and on undercanopy tree and shrub microsites. Erosion from …