Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.117659 |
First-entry wildfires can create opening and tree clump patterns characteristic of resilient forests | |
Kane, Van R.1; Bartl-Geller, Bryce N.1; North, Malcom P.2; Kane, Jonathan T.1; Lydersen, Jamie M.3; Jeronimo, Sean M. A.1; Collins, Brandon M.4; Moskal, L. Monika1 | |
2019-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 454 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A century of fire suppression has left fire-dependent forests of the western United States increasingly vulnerable to wildfire, drought, and insects. Forest managers are trying to improve resilience using treatments such as mechanical thinning and prescribed fire; however, operational and resource constraints limit treatments to a fraction of the needed area each year. An alternative is to let wildfires burn under less-than-extreme fire weather where human lives and infrastructure are not at risk. We examined post-fire forest structure using airborne lidar data to determine whether a single wildland fire following an extended fire-free period could produce forest structures resembling fire-resilient historical conditions. We studied forest structures resulting from these "first-entry" fires in a forest with a history of timber management (2008 American River Complex Fires, Tahoe National Forest) and in a wilderness area (2009 Big Meadow Fire, Yosemite National Park). We compared the results of these first-entry fires with nearby reference areas that had experienced 2+ fires that burned predominately at low- and moderate-severity. We identified visible overstory trees from the lidar data and examined their patterns in terms of individuals, tree clumps, and openings. We found that moderate-severity fire effects in these first-entry fires produced similar patterns to the reference areas with area in openings at approximately 40% and trees predominately in small (2 to 4 trees) and medium (5-9 trees) clumps High-severity fire produced mortality likely to lead to large canopy openings that were historically uncharacteristic in these forests. As burn severity increased, the amount of the residual canopy area represented by taller trees ( > 16 m and especially > 32 m) decreased, which could result from fires preferentially killing taller trees or from locations with taller trees more commonly experiencing lower burn severities. Our study suggests that first-entry fires allowed to burn under less-than-extreme conditions can reproduce spatial patterns resembling historical conditions resilient to fires and drought but possibly at the disproportionate expense of larger trees. |
英文关键词 | ICO Forests Frequent fire Reference areas Resilience Tree clumps Openings Tall trees Burn severity Lidar |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500372100004 |
WOS关键词 | KOLMOGOROV-SMIRNOV TEST ; PONDEROSA PINE FORESTS ; CENTRAL SIERRA-NEVADA ; STAND-REPLACING FIRE ; SPATIAL-PATTERNS ; MIXED-CONIFER ; FUEL REDUCTION ; LAND MANAGEMENT ; CALIFORNIA ; SEVERITY |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224806 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Washington, Sch Environm & Forest Sci, Seattle, WA 98195 USA; 2.US Forest Serv, USDA, PSW Res Stn, Mammoth Lakes, CA 93546 USA; 3.Calif Dept Forestry & Fire Protect, Fire & Resource Assessment Program, Sacramento, CA 95818 USA; 4.Univ Calif Berkeley, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Kane, Van R.,Bartl-Geller, Bryce N.,North, Malcom P.,et al. First-entry wildfires can create opening and tree clump patterns characteristic of resilient forests[J]. FOREST ECOLOGY AND MANAGEMENT,2019,454. |
APA | Kane, Van R..,Bartl-Geller, Bryce N..,North, Malcom P..,Kane, Jonathan T..,Lydersen, Jamie M..,...&Moskal, L. Monika.(2019).First-entry wildfires can create opening and tree clump patterns characteristic of resilient forests.FOREST ECOLOGY AND MANAGEMENT,454. |
MLA | Kane, Van R.,et al."First-entry wildfires can create opening and tree clump patterns characteristic of resilient forests".FOREST ECOLOGY AND MANAGEMENT 454(2019). |
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