Bromus tectorum cover mapping and fire risk

Link, Steven O.; Keeler, Carson W.; Hill, Randal W.; Hagen, Eric

doi:10.1071/wf05001

Cited by 71 publications

(62 citation statements)

References 15 publications

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“…When wildfires are ignited in dense infestations, the extent and severity of these fires supersedes that of historic fires, thus, negatively impacting the native plant community (Brooks 2002;Link et al 2006). Studies have shown that downy brome recovers to pre-fire levels within two seasons after fire, outcompeting desirable species (Young et al 1976;Melgoza et al 1990).…”

Section: Introductionmentioning

confidence: 99%

Litter Reduction by Prescribed Burning Can Extend Downy Brome Control

Kessler

Nissen

Meiman

et al. 2015

Rangeland Ecology & Management

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LITTER REDUCTION BY PRESCRIBED BURNINGCAN EXTEND DOWNY BROME CONTROL Downy brome (Bromus tectorum L.) is a highly successful invasive species primarily because it fills an open niche in native plant communities. It also produces large amounts of litter over time. We hypothesized that removing accumulated litter with a prescribed burn before applying herbicides would improve herbicide efficacy, extending the duration of control. In January 2012, two downy brome infested sites were burned. In March 2012, post-emergent applications of glyphosate, imazapic, and tebuthiuron were made in a split-plot design.Aboveground biomass was collected at 6, 18 and 27 months after treatment (MAT) to evaluate treatment effects. In non-burned areas, all herbicide treatments were similar to the control 27 MAT; however, burning combined with imazapic or tebuthiuron reduced downy brome biomass 27 MAT by 81% ± 4.6 SE and 84% ± 19.3 SE, respectively. Remnant species responded positively to burning and herbicide treatments. Native cool season grass biomass increased after burning while native warm season grass biomass increased following tebuthiuron treatments.The impact of litter on imazapic and tebuthiuron availability was also evaluated. Herbicide interception increased in a linear relationship with increasing litter. For every 50 g·m -2 increase in litter there was a 7% increase in the amount of herbicide intercepted, meaning that 75% of the applied herbicide was intercepted by 360 g·m -2 of litter. A simulated rainfall event of 5 mm, 7 days after application, removed a significant amount of herbicide. This indicates that at sites with surface litter, timely precipitation could be critical for herbicide efficacy; however, when burning was used to remove litter and was followed by herbicides with residual soil activity, iii downy brome control was extended. Due to downy brome's relatively short seed viability in the soil, extending herbicide efficacy to several years could help to reduce the soil seed bank.iv ACKNOWLEDGEMENTS

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Section: Introductionmentioning

confidence: 99%

Litter Reduction by Prescribed Burning Can Extend Downy Brome Control

Kessler

Nissen

Meiman

et al. 2015

Rangeland Ecology & Management

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“…These vegeta- continuity, which greatly increases the potential for fi re spread and larger wildfi res (Link et al 2006). …”

Section: Firementioning

confidence: 99%

Climate change effects on vegetation in the Pacific Northwest: a review and synthesis of the scientific literature and simulation model projections

Peterson¹,

Kerns²,

Dodson³

2014

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“…Documentation of plant communities on the disturbance was done on June 14, 2011, by determining cover of each species along with other surface characters. Cover was determined using a tape measure (Bonham 1989;Elmore et al 2003;Link et al 2006) and identifying the first observed (tallest) cover type at each 0.1-m hash mark on the tape. The tape was stretched tightly between two pieces of rebar metal stakes in the ground at the ends of any transect.…”

Section: D25 Cheatgrass Control At High Elevationmentioning

confidence: 99%

Survey of Revegetated Areas on the Fitzner/Eberhardt Arid Lands Ecology Reserve: Status and Initial Monitoring Results

Downs¹,

Link²,

Rozeboom³

et al. 2011

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SummaryDuring 2010, the U.S. Department of Energy (DOE), Richland Operations Office removed a number of facilities and debris from the Fitzner/Eberhardt Arid Lands Ecology Reserve (ALE), which is part of the Hanford Reach National Monument (HRNM). Revegetation of disturbed sites is necessary to stabilize the soil, reduce invasion by exotic weeds, and to accelerate re-establishment of native plant communities. Seven revegetation units were identified on ALE based on soils and potential native plant communities. Native seed mixes and plant material were identified for each unit based on the desired plant community. Revegetation of locations affected by decommissioning of buildings and debris removal was undertaken during the winter and early spring of 2010 and 2011, respectively. This report describes both the details of planting and seeding for each of the units, describes the sampling design for monitoring, and summarizes the data collected during the first year of monitoring.In general, the revegetation efforts were successful in establishing native bunchgrasses and shrubs on most of the sites within the 7 revegetation units. Invasion of the revegetation areas by exotic annual species was minimal for most sites, but was above initial criteria in 3 areas: the Hodges Well subunit of Unit 2, and Units 6 and 7.v

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Bromus tectorum cover mapping and fire risk

Cited by 71 publications

References 15 publications

Litter Reduction by Prescribed Burning Can Extend Downy Brome Control

Litter Reduction by Prescribed Burning Can Extend Downy Brome Control

Climate change effects on vegetation in the Pacific Northwest: a review and synthesis of the scientific literature and simulation model projections

Survey of Revegetated Areas on the Fitzner/Eberhardt Arid Lands Ecology Reserve: Status and Initial Monitoring Results

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