Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14589 |
Carbon consequences of drought differ in forests that resprout | |
Walden, Lewis L.1; Fontaine, Joseph B.1; Ruthrof, Katinka X.1,2; Matusick, George1; Harper, Richard J.1; Hardy, Giles E. St J.1 | |
2019-05-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:5页码:1653-1664 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Prolonged drought and intense heat-related events trigger sudden forest die-off events and have now been reported from all forested continents. Such die-offs are concerning given that drought and heatwave events are forecast to increase in severity and duration as climate change progresses. Quantifying consequences to carbon dynamics and storage from die-off events are critical for determining the current and future mitigation potential of forests. We took stand measurements five times over 2+ years from affected and unaffected plots across the Northern Jarrah Forest, southwestern Australia, following an acute drought/heatwave in 2011. We found a significant loss of live standing carbon (49.3 t ha(-1)), and subsequently a significant increase in the dead standing carbon pool by 6 months post-die-off. Of the persisting live trees, 38% experienced partial mortality contributing to the rapid regrowth and replenishment (82%-88%) of labile carbon pools (foliage, twigs, and branches) within 26 months. Such regrowth was not substantial in terms of net carbon changes within the timeframe of the study but does reflect the resprouting resilience of this forest type. Dead carbon generated by the die-off may persist for centuries given low fragmentation and decay rates resulting in low biogenic emission rates relative to other forest types. However, future fire may threaten persistence of both dead and live pools via combustion and mortality of live tissue and impaired regrowth capacity. Resprouting forests are commonly regarded as resilient systems, however, a changing climate could see vulnerable portions of forests become carbon sources rather than carbon sinks. |
英文关键词 | carbon sequestration climate change impacts climate mitigation Eucalyptus marginata forest dynamics Mediterranean tree mortality |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465103600008 |
WOS关键词 | CLIMATE-CHANGE ; INDUCED MORTALITY ; DIE-OFF ; FIRE ; VEGETATION ; RESILIENCE ; DYNAMICS ; IMPACT ; STATES ; RESISTANCE |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/182916 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Murdoch Univ, Environm & Conservat Sci, Murdoch, WA, Australia; 2.Dept Biodivers Conservat & Attract, Kings Pk, WA, Australia |
推荐引用方式 GB/T 7714 | Walden, Lewis L.,Fontaine, Joseph B.,Ruthrof, Katinka X.,et al. Carbon consequences of drought differ in forests that resprout[J]. GLOBAL CHANGE BIOLOGY,2019,25(5):1653-1664. |
APA | Walden, Lewis L.,Fontaine, Joseph B.,Ruthrof, Katinka X.,Matusick, George,Harper, Richard J.,&Hardy, Giles E. St J..(2019).Carbon consequences of drought differ in forests that resprout.GLOBAL CHANGE BIOLOGY,25(5),1653-1664. |
MLA | Walden, Lewis L.,et al."Carbon consequences of drought differ in forests that resprout".GLOBAL CHANGE BIOLOGY 25.5(2019):1653-1664. |
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