Your search for Vegetation Type "Intermountain Grasslands (includes Palouse Prairie and Canyon Grasslands)" resulted in 24 match(es).

Title: Spotted knapweed response to season and frequency of mowing: Journal: Journal of Range Management; Authors: M. J. Rinella, J. S. Jacobs, R. L. Sheley, and J. J. Borkowski; Date: 2001; Summary: The response of spotted knapweed and perennial grass to 16 mowing treatments (combinations of spring, summer, fall and no mowing) at 2 sites over 3 years. Site 1 was south of Belgrade, MT (45Â° 47' N; 111Â° 10' W) and site 2 was southwest of Bozeman, MT (45Â° 36' N; 111Â° 5' W). Sites were mowed with the blade set at 10 cm above ground surface. ...; Agrovoc Control Words: Noxious Plants, Rangelands, grazing; View more details about this article

Title: Effect of weed seed rate and grass defoliation level on diffuse knapweed: Journal: Journal of Range Management; Authors: R. L. Sheley, B. E. Olson, and L. L. Larson; Date: 1997; Summary: This three year study examined the effect of a single grass defoliation on the establishment of diffuse knapweed (Centaurea diffusa) at two different sites east of Plymouth, Washington. The first site was dominated by crested wheatgrass and the second site was co-dominated by bluebunch wheatgrass and needle-and-thread grass. Diffuse knapweed was seeded at 500 and 1000 seeds per 1 m² plot in the fall. The following spring grasses on the site were defoliated (clipped) at six different levels (0, 20, 40, 60, 80 and 100) to mimic grazing. The number o ...; Agrovoc Control Words: Weeds, Rangelands, Grazing; View more details about this article

Title: Managing yellow starthistle on rangeland: Journal: California Agriculture; Authors: C. D. Thomsen, W. A. Williams, M. R. George, W. B. McHenry, F. I. Bell, and R. S. Knight; Date: 1989; Summary: The effects of cattle grazing alone and grazing paired with herbicide application on yellow starthistle, ability of annual and perennial grasses to suppress yellow starthistle through competition, and reduction of yellow starthistle through timed defoliation were examined at two sites in California over a three year time period (only one year has been completed). The first site was 20 miles southwest of Red Bluff and the second site was located 20 miles west of Maxwell, CA. Sites were grazed early and late in the growing season; Herbicide applications of 2,4-D were applied during the rosett ...; Agrovoc Control Words: Noxious Weeds, Rangelands, Grazing; View more details about this article

Title: Controlled grazing on annual grassland decreases yellow starthistle: Journal: California Agriculture; Authors: C. D. Thomsen, W. A. Williams, M. Vayssieres, F. L. Bell, and M. R. George; Date: 1993; Summary: The effect of cattle, and sheep and goat grazing (2 years sheep followed by 1 year of goat grazing) on yellow starthistle was examined on two sites in California over three years. One site was located 20 miles west of Maxwell, CA while the second site was at the UC Davis Agronomy Farm. Cattle were grazed in a short duration, high intensity grazing system for three years at first site. Sheep were grazed for two years followed by goat grazing during the third year at the UC Davis Agronomy Farm in a short duration, high intensity grazing system. Grazing occurred at either rosette or bolt (pre ...; Agrovoc Control Words: Noxious weeds, Rangelands, Grazing; View more details about this article

Title: Effects of clipping and sheep grazing on dyers woad: Journal: Journal of Range Management; Authors: N. E. West, and K. O. Farah; Date: 1989; Summary: This two year study in the Wellsville Mountains, Box Elder County, Utah compared the effects of mechanical clipping and grazing by sheep on dyers woad (Isatis tinctoria) characteristics. Grazing intensity varied from light (less than 40% grazed) to moderate (60% clipped) and severe (90% clipped). Plants were subject of varying clipping frequencies (1, 2, 3, and four times) from April to May. Vegetation measurements were taken before and after grazing and clipping treatments. ...; Agrovoc Control Words: Weeds, Rangelands, Grazing; View more details about this article

Title: Economically Optimal Stocking Rates: A Bioeconomic Grazing Model

Journal: Rangeland Ecology & Management

Authors: J. P. Ritten, C. T. Bastian, and W. M. Frasier

Date: 2010

Summary: Authors use a bioeconomic dynamic programming model building on physical relationships presented by Noy-Meir (1975), which incorporates both animal performance over time and resultant stream of discounted returns and how stocking decisions affect evolving rangeland conditions. The model also accounts for the Michaelis Constant, which can be interpreted as inversely related to animal grazing efficiency, with a lower number meaning that animal is able to achieve desired performance with less forage. This model represents a stock operation in central Wyoming and incorporates studies and figures ...

Agrovoc Control Words: Grazing, Rangelands, Bioeconomics

View more details about this article

Title: Evaluating restoration methods across a range of plant communities dominated by invasive annual grasses to native perennial grasses

Journal: Invasive Plant Science and Management

Authors: P. A. Nyamai, T. S. Prather, and J. M. Wallace

Date: 2011

Summary: Five techniques(herbicides and reseeding native species) for restoring grasslands that have been invaded by annual grasses were evaluated in Palouse Prairie remnants in Latah County, ID (46Â° 40' N; 116Â° 58' W and 46Â° 38' N; 116Â° 58' W). Both sites were invaded by downy brome and ventenata. Within each site, three communities (annual grasses, perennial grasses, mixed grasses) were identified. Five treatments (herbicide broadcast application, herbicide spot application, herbicide broadcast application with seeding and mulching, herbicide spot applic ...

Agrovoc Control Words: Bromus tectorum, Weeds, Reclamation

View more details about this article

Title: Landslide erosion risk to New Zealand pastoral steeplands productivity

Journal: Land Degradation & Development

Authors: P. G. Luckman, R. D. Gibson, and R. C. Derose

Date: 1999

Summary: A simple model was developed to evaluate the impacts of long-term soil erosion on pasture productivity caused by storm-induced landslides steep (>25°) hill slopes. The study area is located on the North Island of New Zealand (38° 24\' S; 175° 43\' E) where the risk of landslides can increase following initial forest or scrub clearance, ultimately leading to a decrease in pasture productivity caused by increased soil erosion. The basic modeling unit of measurement used was the terrain mapping unit (TMU) which is described as a relatively homogenous parcel of land cover ...

Agrovoc Control Words: Pasture management, Landslides, Erosion

View more details about this article

Title: Land degradation and the decline of ranching in the Sierra Nevada Foothills, California

Journal: Land Degradation & Development

Authors: D. Smethurst

Date: 1999

Summary: The progression of land use changes in El Dorado County, California from 1957 to 1997 was summarized by cataloging past and present land management practices in addition to associated political regulations and processes that have led to degradation of hardwood rangelands. Personal interviews of area families were a very important component of the evolving argument. The idea that land use is governed by both biological and political processes, known as â€œpolitical ecologyâ€ was explored here. Improved regulations and protection of valuable grazing land not only for the ca ...

Agrovoc Control Words: Conservation, Rangelands, Land management

View more details about this article

View previous 15 results

Back to Homepage