Bark-beetle-attacked trees produced more charcoal than unattacked trees during a forest fire on the Kenai Peninsula, Southern Alaska
Bark-beetle-attacked trees produced more charcoal than unattacked trees during a forest fire on the Kenai Peninsula, Southern Alaska
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DOI：
10.1080/02827581.2011.619566
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发表时间：
2012-01
影响因子：
1.8
通讯作者：
Kobayashi Makoto;Naoto Kamata;N. Kamibayashi;Takayoshi Koike;H. Tani
中科院分区：
文献类型：
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作者：
Kobayashi Makoto;Naoto Kamata;N. Kamibayashi;Takayoshi Koike;H. Tani
摘要阿拉斯加北部森林经常遭受树皮甲虫和火灾的爆发，这些因素似乎结合在一起，改变了木炭的生产。森林生态系统中木炭(黑碳)的产生是阐明火灾对北方森林碳循环影响的重要途径。在这项研究中，我们旨在阐明在北方森林森林火灾期间，云杉金龟子(Dendroctonus rufipennis(Kirby))的流行对木炭生产的影响。被云杉甲虫火前伤害的陷阱(有虫害的陷阱)比那些在火灾前没有受到损害的陷阱(未被感染的陷阱)有明显更多的木炭。云杉甲虫破坏的树木中木炭量的增加可能是这些树木树冠中干燥的生物质的结果。这项研究的结果表明，随着环境条件的变化，北方森林中虫害的扩散可以通过改变木炭的产生量来改变火灾对碳汇的影响。
Abstract Alaskan boreal forests frequently suffer from outbreaks of bark beetles and fires, factors that appear to combine to alter charcoal production. Charcoal (black carbon) production in forest ecosystems is an important pathway to clarify for a more complete understanding of the effects of fire on carbon cycling in boreal forests. In this study, we aimed to clarify the effects of prevalent outbreaks of the spruce beetle, Dendroctonus rufipennis (Kirby), on charcoal production during forest fires in boreal forests. Snags with prefire damage by the spruce beetle (infested snags) have significantly more charcoal than those undamaged before fire (noninfested snags). This increased amount of charcoal in spruce beetle-damaged trees was probably the result of dried biomass in the canopies of these trees. The results of this study suggest that with changing environmental conditions, the proliferation of insect damage in the boreal forest can modify the effects of fire on carbon sink via a change in the amount of charcoal production.