Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.04.007 |
Mastication treatment effects on vegetation and fuels in pinon-juniper woodlands of central Colorado, USA | |
Coop, Jonathan D.1; Grant, Thomas A., III1; Magee, Patrick A.2; Moore, Elizabeth A.1 | |
2017-07-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 396 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Forest mastication treatments are increasingly utilized by land managers as a means of reducing tree cover for fire hazard mitigation and other habitat objectives in pinon-juniper (P-j)woodlands. Mastication converts trees into small pieces (e.g., wood chips), in the process creating canopy openings, redistributing fuel from the canopy to the surface, converting large diameter to small diameter fuels, and covering the ground with piles of woody debris. We measured vegetation and fuels at 192 sites in 24 pairs of 1-11-year-old mastication treatments and untreated adjacent controls in P-J woodlands of the Arkansas River valley, Colorado, and used paired t-tests, mixed-effects models, and gradient analysis (non-metric multidimensional scaling) to assess mastication effects. Treatments were associated with major, persistent ecological shifts relative to controls. Tree cover and canopy fuels were reduced in treatments; concomitantly, dead and down woody surface fuels, forb, and graminoid cover were elevated. Treatments exhibited much higher frequency, richness, and cover by a suite of non-native plant species including cheatgrass (Bromus tectorum). Non-native plant expansion appears linked to the disturbance associated with treatment activities, reductions in tree canopy, and alterations to ground cover, and effective mitigation of increases by these species may necessitate both pre- and pbst-treatment control measures. Shifts from native-dominated woodlands to open, weedy, herb- and shrub-dominated communities are likely to change patterns of abundance and habitat use by woodland- and forest-dependent wildlife. Decreased canopy fuels and increased herbaceous surface fuels including exotic annuals are expected to alter potential fire behavior. We encourage managers carrying out P-J mastication projects to explicitly address potential trade-offs between desired treatment outcomes and potentially unwelcome impacts, and how these might be mitigated. It may also be worth considering whether or not tree removal treatments will be warranted given anticipated climate change impacts to these woodlands. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Cheatgrass Chipping Hydro-ax Juniperus monosperma Juniperus scopulorum Mulching Pinyon Pinus edulis Shredding Wildfire |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402217100007 |
WOS关键词 | WESTERN UNITED-STATES ; REDUCTION TREATMENTS ; MECHANICAL MASTICATION ; FIRE BEHAVIOR ; GLOBAL-CHANGE ; FOREST ; RESTORATION ; RESPONSES ; ARIZONA ; DROUGHT |
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/24044 |
专题 | 气候变化 |
作者单位 | 1.Western State Colorado Univ, Ctr Environm & Sustainabil, Gunnison, CO 81231 USA; 2.Western State Colorado Univ, Dept Nat & Environm Sci, Gunnison, CO 81231 USA |
推荐引用方式 GB/T 7714 | Coop, Jonathan D.,Grant, Thomas A., III,Magee, Patrick A.,et al. Mastication treatment effects on vegetation and fuels in pinon-juniper woodlands of central Colorado, USA[J]. FOREST ECOLOGY AND MANAGEMENT,2017,396. |
APA | Coop, Jonathan D.,Grant, Thomas A., III,Magee, Patrick A.,&Moore, Elizabeth A..(2017).Mastication treatment effects on vegetation and fuels in pinon-juniper woodlands of central Colorado, USA.FOREST ECOLOGY AND MANAGEMENT,396. |
MLA | Coop, Jonathan D.,et al."Mastication treatment effects on vegetation and fuels in pinon-juniper woodlands of central Colorado, USA".FOREST ECOLOGY AND MANAGEMENT 396(2017). |
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