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Broom snakeweed (Gutierrezia sarothrae [Pursh] Britton & Rusby) increases and dominates rangelands following disturbances, such as overgrazing, fire, and drought. However, if cattle can be forced to graze broom snakeweed, they may be used as a biological tool to control it. Cattle grazed broom snakeweed in May and August 2004–2007. Narrow grazing lanes were fenced to restrict availability of herbaceous forage to force cattle to graze broom snakeweed. They used 50–85% of broom snakeweed biomass. Mature broom snakeweed plant density declined because of prolonged drought, but the decline was greater in grazed lanes. At the end of the study, density of mature plants in grazed lanes was 0.31 plants ?m22, compared...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Rangeland Ecology & Management,
Society for Range Management Rangeland Ecology & Management, P.O. Box 7065, Lawrence, KS 66044,
biological control,
forage allowance,
grazing pressure, All tags...
prescribed grazing, Fewer tags
Scattering slash (downed woody materials) after tree removal is increasingly prescribed by land managers as a treatment to promote the establishment and growth of understory vegetation in pinyon–juniper woodlands. However, the effects of scattering slash on soil resources and plant communities are poorly understood and often confounded with the release from tree competition. In order to examine how slash affects plant establishment, soil stability, soil nutrients, and soil microbiota, we initiated a 2 3 2 full factorial experiment with two levels of seeding and two levels of slash additions within 30 intercanopy spaces, repeated at two intact pinyon–juniper woodland sites with different soil characteristics...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Rangeland Ecology & Management,
Society for Range Management Rangeland Ecology & Management, P.O. Box 7065, Lawrence, KS 66044,
down woody material,
ecological restoration,
pinyon–juniper woodlands, All tags...
safe site,
slash mulch,
understory production, Fewer tags
Cheatgrass (Bromus tectorum L.) is the most widespread invasive weed in sagebrush ecosystems of North America. Restoration of perennial vegetation is difficult and land managers have often used introduced bunchgrasses to restore degraded sagebrush communities. Our objective was to evaluate the potential of ‘Vavilov’ Siberian wheatgrass (Agropyron fragile [Roth] P. Candargy) to establish on cheatgrass-dominated sites. We examined Vavilov establishment in response to different levels of soil nitrogen availability by adding sucrose to the soil to promote nitrogen (N) immobilization and examined cheatgrass competition by seeding different levels of cheatgrass. We used a blocked split-split plot design with two sucrose...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Bromus tectorum,
Rangeland Ecology & Management,
Society for Range Management Rangeland Ecology & Management, P.O. Box 7065, Lawrence, KS 66044,
invasion,
nitrate, All tags...
rangeland restoration,
sagebrush steppe,
sucrose addition, Fewer tags
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