Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.03.010 |
The effects of thinning and burning on understory vegetation in North America: A meta-analysis | |
Wilims, Joshua1; Bartuszevige, Anne2; Schwilk, Dylan W.1; Kennedy, Patricia L.3,4 | |
2017-05-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 392 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Management in fire-prone ecosystems relies widely upon application of prescribed fire and/or fire surrogate (e.g., forest thinning) treatments to maintain biodiversity and ecosystem function. The literature suggests fire and mechanical treatments proved more variable in their effects on understory vegetation as compared to their effects on stand structure. The growing body of work comparing fire and thinning effects on understory vegetation offers an opportunity to increase the generality of conclusions through meta-analysis. We conducted a meta-analysis to determine if there were consistent responses of understory vegetation to these treatments in North American forests that historically experienced frequent surface fire regimes (<20 years fire return interval, FRI). Means and standard errors were extracted from 32 papers containing data on the response of four understory functional groups (herbaceous, shrub, non-native, and total) to thinning and burning treatments to calculate effect sizes. Lack of replication and inconsistent reporting of results hindered our ability to include many studies in this analysis. For each response variable (species richness and percent cover), we compared three treatment pairs: burn vs control, thin vs control and thin vs burn. We calculated standardized mean differences (Hedges' g) for each pair and tested if this differed from zero using a random effects model fit with restricted maximum likelihood to account for variation by site. The most consistent effect of the treatments was the increase in non-native species following mechanical thinning and reduction in shrub cover following a burn. These differences suggest the two treatments may not be surrogates in the short-term (less than 5 years). Increase of non-native species due to disturbance is well established but it is not clear if burning and thinning consistently have differential impacts. Response of non-native plants to disturbance is likely a complex function of a variety of site and landscape factors that cannot be evaluated by the current literature. We conclude that prescribed fire and thinning treatments can be used successfully to restore understory species richness and cover, but they can create different conditions and these potentially different outcomes need to be considered in the planning of a fuels reduction treatment. We discuss management options to reduce negative effects of the treatments and we suggest managers use current decision-making frameworks prior to designing an intervention. (C) 2017 Published by Elsevier B.V. |
英文关键词 | Burning Disturbance Fire surrogates Forest understory Fuels reduction Meta-analysis Non-native understory vegetation Thinning |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400201900018 |
WOS关键词 | FUEL-REDUCTION TREATMENTS ; PONDEROSA PINE FORESTS ; MIXED-CONIFER FOREST ; FIRE SURROGATE TREATMENTS ; RESTORATION TREATMENTS ; STAND STRUCTURE ; PLANT-COMMUNITIES ; SEVERITY WILDFIRE ; EXOTIC PLANTS ; UNITED-STATES |
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/24045 |
专题 | 气候变化 |
作者单位 | 1.Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA; 2.Playa Lakes Joint Venture, Lafayette, CO 80026 USA; 3.Oregon State Univ, Eastern Oregon Agr & Nat Resource Program, Union, OR 97883 USA; 4.Oregon State Univ, Dept Fisheries & Wildlife, Union, OR 97883 USA |
推荐引用方式 GB/T 7714 | Wilims, Joshua,Bartuszevige, Anne,Schwilk, Dylan W.,et al. The effects of thinning and burning on understory vegetation in North America: A meta-analysis[J]. FOREST ECOLOGY AND MANAGEMENT,2017,392. |
APA | Wilims, Joshua,Bartuszevige, Anne,Schwilk, Dylan W.,&Kennedy, Patricia L..(2017).The effects of thinning and burning on understory vegetation in North America: A meta-analysis.FOREST ECOLOGY AND MANAGEMENT,392. |
MLA | Wilims, Joshua,et al."The effects of thinning and burning on understory vegetation in North America: A meta-analysis".FOREST ECOLOGY AND MANAGEMENT 392(2017). |
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