Frequency and Characteristics of Arctic Tundra Fires
Frequency and Characteristics of Arctic Tundra Fires
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北极苔原火灾的频率和特征
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
R. Wein
中科院分区：
文献类型：
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作者：
R. Wein
总结了主要位于北极西部的 50 多起苔原火灾的特征。一般来说，只有最近的记录可用，火灾数量与该地区的可达性密切相关。其中大多数火灾覆盖面积不到一平方公里（与通常规模更大的森林火灾相比），但阿拉斯加苏厄德半岛的三场苔原火灾总共烧毁了 16,000 平方公里的棉草草丛。虽然苔原火灾最早可能在五月发生，但大多数在七月和八月初爆发。生物量减少，因此随着距离向北，植被的不连续性更容易阻止火灾。
Characteristics of over 50 tundra fires, located primarily in the western Arctic, are summarized. In general, only recent records were available and the numbers of fires were closely related to the accessibility of the area. Most of them covered areas of less than one square kilometre (in contrast to forest fires which are frequently larger) but three tundra fires on the Seward Peninsula of Alaska burned, in aggregate, 16,000 square kilometres of cottongrass tussocks. Though tundra fires can occur as early as May, most of them break out in July and early August. Biomass decreases, and so fires are more easily stopped by discontinuities in vegetation, with distance northward.