DOI: 10.1016/j.foreco.2014.03.011
Scopus记录号: 2-s2.0-84899478796
论文题名: Effectiveness of fuel treatments for mitigating wildfire risk and sequestering forest carbon: A case study in the Lake Tahoe Basin
作者: Loudermilk E.L. ; Stanton A. ; Scheller R.M. ; Dilts T.E. ; Weisberg P.J. ; Skinner C. ; Yang J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 323 起始页码: 114
结束页码: 125
语种: 英语
英文关键词: Carbon management
; Effectiveness
; Fuel treatments
; LANDIS-II
; Mixed-conifer
; Wildfire
Scopus关键词: Carbon
; Computer simulation
; Fires
; Fuels
; Carbon management
; Effectiveness
; Fuel treatments
; Landis-ii
; Mixed-conifer
; Wildfire
; Forestry
; carbon emission
; carbon sequestration
; conservation management
; fire behavior
; forest ecosystem
; forest management
; forest resource
; fuel
; investment
; logging (timber)
; prioritization
; restoration ecology
; risk assessment
; safety
; sustainability
; thinning
; wildfire
; Carbon
; Fires
; Forestry
; Fuels
; Simulation
; California
; Lake Tahoe Basin
; Sierra Nevada [California]
; United States
; Coniferophyta
英文摘要: Fuel-reduction treatments are used extensively to reduce wildfire risk and restore forest diversity and function. In the near future, increasing regulation of carbon (C) emissions may force forest managers to balance the use of fuel treatments for reducing wildfire risk against an alternative goal of C sequestration. The objective of this study was to evaluate how long-term fuel treatments mitigate wildfires and affect forest C. For the Lake Tahoe Basin in the central Sierra Nevada, USA, fuel treatment efficiency was explored with a landscape-scale simulation model, LANDIS-II, using five fuel treatment scenarios and two (contemporary and potential future) fire regimes. Treatment scenarios included applying a combination of light (hand) and moderate (mechanical) forest thinning continuously through time and transitioning from these prescriptions to a more mid-seral thinning prescription, both on a 15 and 30. year rotation interval. In the last scenario, fuel treatments were isolated to around the lake shore (nearby urban settlement) to simulate a low investment alternative were future resources may be limited. Results indicated that the forest will remain a C sink regardless of treatment or fire regime simulated, due to the landscape legacy of historic logging. Achievement of a net C gain required decades with intensive treatment and depended on wildfire activity: Fuel treatments were more effective in a more active fire environment, where the interface between wildfires and treatment areas increased and caused net C gain earlier than as compared to our scenarios with less wildfire activity. Fuel treatments were most effective when continuously applied and strategically placed in high ignition areas. Treatment type and re-application interval were less influential at the landscape scale, but had notable effects on species dynamics within management units. Treatments created more diverse forest conditions by shifting dominance patterns to a more mixed conifer system, with a higher proportion of fire-tolerant species. We demonstrated that a small amount of wildfire on the landscape resulted in significant changes in the C pool, and that strategically placed fuel treatments substantially reduced wildfire risk, increased fire resiliency of the forest, and is beneficial for long-term C management. Implications for landscape management included consideration for prioritization of treatment areas and creating ideal re-entry schedules that meet logistic, safety, and conservation goals. In forests with a concentrated wildland urban interface, fuel treatments may be vital for ensuring human welfare and enhancing forest integrity in a fire-prone future. © 2014 Published by Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65964
Appears in Collections: 影响、适应和脆弱性
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作者单位: Environmental Science and Management Department, Portland State University, PO Box 751, Portland, OR 97207, United States; 3170 Highway 50 Suite #7, South Lake Tahoe, CA 96150, United States; Department of Natural Resources and Environmental Science, University of Nevada, Reno, 1664 N. Virginia St., Mail Stop 186, Reno, NV 89557, United States; Pacific Southwest Research Station, USDA Forest Service, 3644 Avtech Parkway, Redding, CA 96002, United States
Recommended Citation:
Loudermilk E.L.,Stanton A.,Scheller R.M.,et al. Effectiveness of fuel treatments for mitigating wildfire risk and sequestering forest carbon: A case study in the Lake Tahoe Basin[J]. Forest Ecology and Management,2014-01-01,323