Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.06.018 |
Long-term impact of a major ice storm on tree mortality in an old-growth forest | |
Deschenes, Elise1; Brice, Marie-Helene2,3; Brisson, Jacques1,2 | |
2019-09-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 448页码:386-394 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | In January 1998, eastern North America experienced the worst ice storm ever recorded, which resulted in major damage to forests throughout the region. However, we know little about the long-term effects of such a severe weather event, or how its potential interaction with other biotic factors impacted tree mortality. In this study, we investigated the long-term influence of the 1998 ice storm on tree mortality in Boise-des-Muir ecological reserve, an old-growth forest in southern Quebec (Canada). Mortality rates for four out of the five tree species studied showed a striking increase a few years after the ice storm, between 2000 and 2004. After this peak, tree mortality rates remained higher than before 1998. These results indicate a lagged and persistent effect of the ice storm on tree mortality and suggest that the tree community of Boise-des-Muir was more severely impacted than previously reported. Tree species were differentially damaged by the ice storm, and more than 25% of all tree species lost more than half their crown. Using a Cox proportional hazard model, we evaluated the impact of different levels of initial canopy damage from the ice storm on long-term tree mortality while taking into account other important biotic factors, such as tree size, tree density, indices of species-specific competition, and the presence of the beech scale insect. Species differed in their response to the storm, suggesting fundamental differences in sensitivity to extreme weather events. In particular, eastern hop-hornbeam (Ostrya virginiana) and American beech (Fagus grandifolia) were the species most vulnerable to the ice storm, and severe canopy loss led to a large increase in mortality risk. These findings suggest that the difference in tree survival following a natural disturbance likely depends not only on the severity of the damage itself, but also on species-specific ability to repair injuries and maintain physiological processes. We also found that tree size and species-specific competition influenced tree mortality significantly but did not interact with level of canopy loss. Consequently, multiple biotic factors remain important to explain mortality even after a major disturbance and should be considered when evaluating tree mortality. Our results show that the impact of the ice storm on tree mortality was species-specific, lagged and persisted for several years after the disturbance, potentially resulting in long-term compositional changes in the forest. This underscores the necessity of conducting long-term monitoring studies to understand the complete impacts of ice storms and other extreme climatic events on forests. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000486553900036 |
WOS关键词 | BEECH BARK DISEASE ; SOUTHERN QUEBEC ; SPECIES COMPOSITION ; DYNAMICS ; DAMAGE |
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/187077 |
专题 | 气候变化 |
作者单位 | 1.Inst Rech Biol Vegetale, 4101 Sherbrooke St E, Montreal, PQ H1X 2B2, Canada; 2.Univ Montreal, Dept Sci Biol, Montreal, PQ, Canada; 3.McGill Univ, Ctr Sci Biodiversite Quebec, Montreal, PQ, Canada |
推荐引用方式 GB/T 7714 | Deschenes, Elise,Brice, Marie-Helene,Brisson, Jacques. Long-term impact of a major ice storm on tree mortality in an old-growth forest[J]. FOREST ECOLOGY AND MANAGEMENT,2019,448:386-394. |
APA | Deschenes, Elise,Brice, Marie-Helene,&Brisson, Jacques.(2019).Long-term impact of a major ice storm on tree mortality in an old-growth forest.FOREST ECOLOGY AND MANAGEMENT,448,386-394. |
MLA | Deschenes, Elise,et al."Long-term impact of a major ice storm on tree mortality in an old-growth forest".FOREST ECOLOGY AND MANAGEMENT 448(2019):386-394. |
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