DOI: 10.1007/s10584-015-1450-y
Scopus记录号: 2-s2.0-84942506239
论文题名: The carbon balance of reducing wildfire risk and restoring process: an analysis of 10-year post-treatment carbon dynamics in a mixed-conifer forest
作者: Wiechmann M.L. ; Hurteau M.D. ; North M.P. ; Koch G.W. ; Jerabkova L.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2015
卷: 132, 期: 4 起始页码: 709
结束页码: 719
语种: 英语
Scopus关键词: Climate change
; Fires
; Risk assessment
; Burning treatment
; Ecosystem resilience
; Fire return intervals
; Full factorial experiment
; High severity fires
; Mixed-conifer forests
; Prescribed fires
; Thinning and prescribed burning
; Forestry
; biome
; carbon balance
; carbon emission
; carbon sequestration
; climate change
; coniferous forest
; ecosystem resilience
; environmental restoration
; mixed forest
; mortality
; prescribed burning
; primary production
; risk assessment
; thinning
; understory
; wildfire
; California
; Sierra Nevada [California]
; United States
; Coniferophyta
英文摘要: Forests sequester carbon from the atmosphere, helping mitigate climate change. In fire-prone forests, burn events result in direct and indirect emissions of carbon. High fire-induced tree mortality can cause a transition from a carbon sink to source, but thinning and prescribed burning can reduce fire severity and carbon loss when wildfire occurs. However, treatment implementation requires carbon removal and emissions to reduce high-severity fire risk. The carbon removed and emitted during treatment may be resequestered by subsequent tree growth, although there is much uncertainty regarding the length of time required. To assess the long-term carbon dynamics of thinning and burning treatments, we quantified the 10-year post-treatment carbon stocks and 10-year net biome productivity (NBP) from a full-factorial experiment involving three levels of thinning and two levels of burning in a mixed-conifer forest in California’s Sierra Nevada. Our results indicate that (1) the understory thin treatment, that retained large trees, quickly recovered the initial carbon emissions (NBP = 31.4 ± 4.2 Mg C ha−1), (2) the carbon emitted from prescribed fire in the burn-only treatment was resequestered within the historical fire return interval (NBP = 32.8 ± 3.5 Mg C ha−1), and (3) the most effective treatment for reducing fire risk, understory thin and burn, had negative NBP (−6.0 ± 4.5 Mg C ha−1) because of post-fire large tree mortality. Understory thinning and prescribed burning can help stabilize forest carbon and restore ecosystem resilience, but this requires additional emissions beyond only thinning or only burning. Retaining additional mid-sized trees may reduce the carbon impacts of understory thinning and burning. © 2015, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84499
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: IGDP in Ecology and Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA, United States; Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA, United States; USDA Forest Service, Pacific Southwest Research Station, Davis, CA, United States; Center for Ecosystem Science and Society and Department of Biological Science, Northern Arizona University, Flagstaff, AZ, United States; Department of Plant Science, University of California, Davis, CA, United States; Department of Forest Management, Czech University of Life Sciences Prague, Prague, Czech Republic
Recommended Citation:
Wiechmann M.L.,Hurteau M.D.,North M.P.,et al. The carbon balance of reducing wildfire risk and restoring process: an analysis of 10-year post-treatment carbon dynamics in a mixed-conifer forest[J]. Climatic Change,2015-01-01,132(4)