Arid
DOI10.1098/rstb.2015.0343
People, El Nino southern oscillation and fire in Australia: fire regimes and climate controls in hummock grasslands
Bird, Rebecca Bliege1; Bird, Douglas W.1; Codding, Brian F.2
通讯作者Bird, Rebecca Bliege
会议名称Royal-Society Scientific Meeting
会议日期SEP 14-15, 2015
会议地点London, ENGLAND
英文摘要

While evidence mounts that indigenous burning has a significant role in shaping pyrodiversity, the processes explaining its variation across local and external biophysical systems remain limited. This is especially the case with studies of climate-fire interactions, which only recognize an effect of humans on the fire regime when they act independently of climate. In this paper, we test the hypothesis that an anthropogenic fire regime (fire incidence, size and extent) does not covary with climate. In the lightning regime, positive El Nino southern oscillation (ENSO) values increase lightning fire incidence, whereas La Nina (and associated increases in prior rainfall) increase fire size. ENSO has the opposite effect in the Martu regime, decreasing ignitions in El Nino conditions without affecting fire size. Anthropogenic ignition rates covary positively with high antecedent rainfall, whereas fire size varies only with high temperatures and unpredictable winds, which may reduce control over fire spread. However, total area burned is similarly predicted by antecedent rainfall in both regimes, but is driven by increases in fire size in the lightning regime, and fire number in the anthropogenic regime. We conclude that anthropogenic regimes covary with climatic variation, but detecting the human-climate-fire interaction requires multiple measures of both fire regime and climate.


This article is part of the themed issue 'The interaction of fire and mankind'.


英文关键词coupled human-natural systems aboriginal Australia patch mosaic burning grassland ecosystems
来源出版物PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN0962-8436
EISSN1471-2970
出版年2016
卷号371
期号1696
出版者ROYAL SOC
类型Article;Proceedings Paper
语种英语
国家USA
收录类别SCI-E ; SSCI ; CPCI-S
WOS记录号WOS:000377704600019
WOS关键词CENTRAL ARNHEM-LAND ; TANAMI DESERT ; VARIABILITY ; STRATEGIES ; MANAGEMENT ; RAINFALL ; ENSO ; CONSERVATION ; HYPOTHESIS ; PATTERNS
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/305928
作者单位1.Penn State Univ, Dept Anthropol, University Pk, PA 16802 USA;
2.Univ Utah, Dept Anthropol, Salt Lake City, UT 84112 USA
推荐引用方式
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Bird, Rebecca Bliege,Bird, Douglas W.,Codding, Brian F.. People, El Nino southern oscillation and fire in Australia: fire regimes and climate controls in hummock grasslands[C]:ROYAL SOC,2016.
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