Mixed-severity fire regimes in the northern Rocky Mountains: consequences of fire exclusion and options for the future
Mixed-severity fire regimes in the northern Rocky Mountains: consequences of fire exclusion and options for the future
复制标题
落基山脉北部的混合严重火灾状况：排除火灾的后果和未来的选择
DOI：
--
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
R. Keane
中科院分区：
文献类型：
--
作者：
S. Arno;D. Parsons;R. Keane
火灾历史研究的结果越来越表明，落基山脉北部的许多森林生态系统是由混合严重程度的火灾状况形成的，其特点是平均间隔约 30 至 100 年发生严重程度不等的火灾。也许是因为混合严重程度的火灾状况及其造成的植被模式难以表征，这些状况在荒野火灾管理中得到的认可有限。本文介绍了冰川国家公园、鲍勃·马歇尔荒野综合体和塞尔韦-比特鲁特荒野的混合严重火灾状况的例子，并讨论了灭火和火灾管理政策如何影响它们。它建议可能的管理行动，使这些和其他自然灾害恢复历史上混合严重程度的火灾状况。
Findings from fire history studies have increasingly indicated that many forest ecosystems in the northern Rocky Moun- tains were shaped by mixed-severity fire regimes, characterized by fires of variable severities at intervals averaging between about 30 and 100 years. Perhaps because mixed-severity fire regimes and their resulting vegetational patterns are difficult to characterize, these regimes have received limited recognition in wilderness fire management. This paper presents examples of mixed-severity fire regimes in Glacier National Park, the Bob Marshall Wilderness Complex and the Selway-Bitterroot Wilderness and discusses how suppression and fire management policies have affected them. It suggests possible management actions to return a semblance of the historical mixed-severity fire regimes to these and other natural