scholarly journals Market impacts of hypothetical fuel treatment thinning programs on federal lands in the western United States

2008 ◽  
Vol 10 (6) ◽  
pp. 363-372 ◽  
Author(s):  
Peter J. Ince ◽  
Henry Spelter ◽  
Kenneth E. Skog ◽  
Andrew Kramp ◽  
Dennis P. Dykstra
2020 ◽  
Vol 111 ◽  
pp. 102042 ◽  
Author(s):  
Emily Jane Davis ◽  
Reem Hajjar ◽  
Susan Charnley ◽  
Cassandra Moseley ◽  
Kendra Wendel ◽  
...  

2011 ◽  
Vol 41 (5) ◽  
pp. 1018-1030 ◽  
Author(s):  
Morris C. Johnson ◽  
Maureen C. Kennedy ◽  
David L. Peterson

We used the Fire and Fuels Extension to the Forest Vegetation Simulator (FFE-FVS) to simulate fuel treatment effects on 45 162 stands in low- to midelevation dry forests (e.g., ponderosa pine ( Pinus ponderosa Dougl. ex. P. & C. Laws.) and Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco) of the western United States. We evaluated treatment effects on predicted post-treatment fire behavior (fire type) and fire hazard (torching index). FFE-FVS predicts that thinning and surface fuel treatments reduced crown fire behavior relative to no treatment; a large proportion of stands were predicted to transition from active crown fire pre-treatment to surface fire post-treatment. Intense thinning treatments (125 and 250 residual trees·ha–1) were predicted to be more effective than light thinning treatments (500 and 750 residual trees·ha–1). Prescribed fire was predicted to be the most effective surface fuel treatment, whereas FFE-FVS predicted no difference between no surface fuel treatment and extraction of fuels. This inability to discriminate the effects of certain fuel treatments illuminates the consequence of a documented limitation in how FFE-FVS incorporates fuel models and we suggest improvements. The concurrence of results from modeling and empirical studies provides quantitative support for “fire-safe” principles of forest fuel reduction (sensu Agee and Skinner 2005. For. Ecol. Manag. 211: 83–96).


2008 ◽  
Vol 256 (12) ◽  
pp. 1997-2006 ◽  
Author(s):  
Elizabeth D. Reinhardt ◽  
Robert E. Keane ◽  
David E. Calkin ◽  
Jack D. Cohen

2006 ◽  
Vol 21 (2) ◽  
pp. 102-107 ◽  
Author(s):  
Abdullah E. Akay ◽  
John Sessions ◽  
Pete Bettinger ◽  
Rick Toupin ◽  
Aaron Eklund

Abstract Recently, large areas of federal lands in the western United States have been subject to wildfire. Concerns about hastening restoration, soil disturbance, and road building have prompted consideration of helicopter logging. Normal planning procedures on federal lands are not sensitive to the rapid decline in the recoverable economic value of fire-killed timber. The economic value of fire-killed timber is dependent on logging costs and time since tree death. A model is developed to calculate value of fire-killed timber as a function of time since death and yarding distance using helicopters as the preferred logging method. Applications of the method to tactical planning are discussed.


Author(s):  
Jennifer J. Smith

Coherence of place often exists alongside irregularities in time in cycles, and chapter three turns to cycles linked by temporal markers. Ray Bradbury’s The Martian Chronicles (1950) follows a linear chronology and describes the exploration, conquest, and repopulation of Mars by humans. Conversely, Louise Erdrich’s Love Medicine (1984) jumps back and forth across time to narrate the lives of interconnected families in the western United States. Bradbury’s cycle invokes a confluence of historical forces—time as value-laden, work as a calling, and travel as necessitating standardized time—and contextualizes them in relation to anxieties about the space race. Erdrich’s cycle invokes broader, oppositional conceptions of time—as recursive and arbitrary and as causal and meaningful—to depict time as implicated in an entire system of measurement that made possible the destruction and exploitation of the Chippewa people. Both volumes understand the United States to be preoccupied with imperialist impulses. Even as they critique such projects, they also point to the tenacity with which individuals encounter these systems, and they do so by creating “interstitial temporalities,” which allow them to navigate time at the crossroads of language and culture.


NWSA Journal ◽  
2004 ◽  
Vol 16 (2) ◽  
pp. 180-189
Author(s):  
Karen L. Salley ◽  
Barbara Scott Winkler ◽  
Megan Celeen ◽  
Heidi Meck

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